choko.bib

@article{Avlonitis2014,
abstract = {We present a user-based method that detects regions of interest within a video, in order to provide video skims and video summaries. Previous research in video retrieval has focused on content-based techniques, such as pattern recognition algorithms that attempt to understand the low-level features of a video. We are proposing a pulse modeling method, which makes sense of a web video by analyzing users Replay interactions with the video player. In particular, we have modeled the user information seeking behavior as a time series and the semantic regions as a discrete pulse of fixed width. Then, we have calculated the correlation coefficient between the dynamically detected pulses at the local maximums of the user activity signal and the pulse of reference. We have found that users Replay activity significantly matches the important segments in information-rich and visually complex videos, such as lecture, how-to, and documentary. The proposed signal processing of user activity is complementary to previous work in content-based video retrieval and provides an additional user-based dimension for modeling the semantics of a social video on the Web.},
author = {Avlonitis, Markos and Chorianopoulos, Konstantinos},
doi = {10.1155/2014/712589},
url1 = {Video Pulses User-based modeling of interesting video segments.pdf},
journal = {Advances in Multimedia},
keywords = {analytics,human-computer interaction,implicit,information retrieval,interaction,multimedia,region of interest,semantics,signal processing,time-series,user modeling,video,video lecture},
mendeley-tags = {analytics,human-computer interaction,information retrieval,multimedia,semantics,signal processing,time-series,video lecture},
pages = {1--9},
title = {{Video Pulses: User-based modeling of interesting video segments}},
url2 = {http://www.hindawi.com/journals/am/2014/712589/},
year = {2014}
}
@article{Chorianopoulos2014a,
abstract = {There is growing interest in the employment of serious video games in science education, but there are no clear design principles. After surveying previous work in serious video game design, we highlighted the following design principles: 1) engage the students with narrative (hero, story), 2) employ familiar gameplay mechanics from popular video games, 3) engage students into constructive trial and error game-play and 4) situate collaborative learning. As illustrated examples we designed two math video games targeted to primary education students. The gameplay of the math video games embeds addition operations in a seamless way, which has been inspired by that of classic platform games. In this way, the students are adding numbers as part of popular gameplay mechanics and as a means to reach the video game objective, rather than as an end in itself. The employment of well-defined principles in the design of math video games should facilitate the evaluation of learning effectiveness by researchers. Moreover, educators can deploy alternative versions of the games in order to engage students with diverse learning styles. For example, some students might be motived and benefited by narrative, while others by collaboration, because it is unlikely that one type of serious video game might fit all learning styles. The proposed principles are not meant to be an exhaustive list, but a starting point for extending the list and applying them in other cases of serious video games beyond mathematics and learning.},
author = {Chorianopoulos, Konstantinos and Giannakos, Michail N.},
doi = {10.17083/ijsg.v1i3.12},
url1 = {Design Principles for Serious Video Games in Mathematics Education From Theory to Practice.pdf},
journal = {International Journal on Serious Games},
keywords = {Design Principles,Education,Guidelines,Interaction Design,Mathematics,Serious Video Games,design,education,human-computer interaction,learning,video games},
mendeley-tags = {design,education,human-computer interaction,learning,video games},
number = {3},
pages = {51--59},
title = {{Design Principles for Serious Video Games in Mathematics Education: From Theory to Practice}},
url2 = {http://journal.seriousgamessociety.org/index.php?journal=IJSG\&page=article\&op=view\&path\%5B\%5D=12},
volume = {1},
year = {2014}
}
@article{Gkonela2012,
abstract = {In this paper, we present a user-based event detection method for social web videos. Previous research in event detection has focused on content-based techniques, such as pattern recognition algorithms that attempt to understand the contents of a video. There are few user-centric approaches that have considered either search keywords, or external data such as comments, tags, and annotations. Moreover, some of the user-centric approaches imposed an extra effort to the users in order to capture required information. In this research, we are describing a method for the analysis of implicit users’ interactions with a web video player, such as pause, play, and thirty-seconds skip or rewind. The results of our experiments indicated that even the simple user heuristic of local maxima might effectively detect the same video-events, as indicated manually. Notably, the proposed technique was more accurate in the detection of events that have a short duration, because those events motivated increased user interaction in video hot-spots. The findings of this research provide evidence that we might be able to infer semantics about a piece of unstructured data just from the way people actually use it.},
author = {Gkonela, Chrysoula and Chorianopoulos, Konstantinos},
doi = {10.1007/s11042-012-1016-1},
url1 = {VideoSkip event detection in social web videos with an implicit user heuristic.pdf},
issn = {1380-7501},
journal = {Multimedia Tools and Applications},
keywords = {Event detection,Experiment,Semantics,User-based,Video,Video lectures,Web,analytics,human-computer interaction,information retrieval,interaction,multimedia,social media,software technology,time-series},
mendeley-tags = {Video lectures,analytics,human-computer interaction,information retrieval,interaction,multimedia,social media,software technology,time-series},
month = feb,
number = {2},
pages = {383--396},
publisher = {Springer Netherlands},
title = {{VideoSkip: event detection in social web videos with an implicit user heuristic}},
url2 = {http://www.springerlink.com/content/c1m1565463117216/},
volume = {69},
year = {2014}
}
@inproceedings{Talvis2014,
abstract = {The recent rise in popularity of Twitter and its open API provides developers the opportunity to extract amounts of data which can be a thesaurus of information. This opportunity led to the development of an open source and open API system called Flu track (http://flutrack.org) that monitors influenza epidemics, based on geo-located self-reports on Twitter. In particular, we detect words such as sore throat, cough, fever etc. Moreover, we detect the aggravation of a patient's clinical condition when a user posts a second flu related tweet that contains words indicating further symptoms such as: worse, deteriorating. Finally, we present flu-positives with real time anonymous visualizations using maps (mapping), which might be helpful for authorities and sensitive populations to plan upcoming events or activities. In order to further aid the surveillance of the spreading of the disease, a classification experiment has been conducted for automatically identifying Tweets that describe cases with acute and more critical symptoms from those referring to milder cases. We found that making use of mereley very small n-gram keyword lexica, the automatic identification of critical cases reaches an accuracy of 92\%.},
address = {Corfu, Greece},
author = {Talvis, Karolos and Chorianopoulos, Kostantinos and Kermanidis, Katia Lida},
booktitle = {9th International Workshop on Semantic and Social Media Adaptation and Personalization},
doi = {10.1109/SMAP.2014.38},
url1 = {Real-Time Monitoring of Flu Epidemics through Linguistic and Statistical Analysis of Twitter Messages.pdf},
isbn = {978-1-4799-6813-8},
keywords = {Data Visualization,Data mining,Data visualization,Diseases,Google,Influenza,Linked Data,Open Source,Pragmatics,Social Media,Twitter,data mining,data visualization,influenza epidemics,linguistic analysis,social media},
language = {English},
mendeley-tags = {Data Visualization,Linked Data,Open Source,Social Media},
pages = {83--87},
publisher = {IEEE},
title = {{Real-Time Monitoring of Flu Epidemics through Linguistic and Statistical Analysis of Twitter Messages}},
url2 = {http://ieeexplore.ieee.org/articleDetails.jsp?arnumber=6978958},
year = {2014}
}
@article{Chorianopoulos2014c,
abstract = {Despite the widespread use of highly accurate digital maps on desktop and mobile computers, cartography has over-emphasized the needs of land use and car navigation. Previous work has considered data analysis and path finding techniques, but there has been limited consideration of the subjective perceptions in pedestrian mapmaking. Besides the immediate benefit to pedestrians, a pragmatic understanding of walking paths might facilitate urban planning and design, which is usually based on cartography. Finally, we demonstrate how the tools and techniques of cartography have influenced the image of the city with references to past and ongoing efforts.},
author = {Chorianopoulos, Konstantinos},
issn = {1712-4441},
journal = {The Journal of Community Informatics},
keywords = {Access,Community Information,GPS,cartography,community informatics,humanistic informatics,pedestrian,urban informatics,urban studies},
language = {en},
mendeley-tags = {GPS,cartography,community informatics,humanistic informatics,pedestrian,urban informatics,urban studies},
number = {3},
title = {{Community-based Pedestrian Mapmaking}},
url2 = {http://ci-journal.net/index.php/ciej/article/view/1095/1121},
volume = {10},
year = {2014}
}
@inproceedings{Chorianopoulos2014,
abstract = {Video lectures are nowadays widely used by growing numbers of learners all over the world. Nevertheless, learners' interactions with the videos are not readily available, because online video platforms do not share them. In this paper, we present an open-source video learning analytics system, which is also available as a free service to researchers. Our system facilitates the analysis of video learning behavior by capturing learners' interactions with the video player (e.g, seek/scrub, play, pause). In an empirical user study, we captured hundreds of user interactions with the video player by analyzing the interactions as a learner activity time series. We found that learners employed the replaying activity to retrieve the video segments that contained the answers to the survey questions. The above findings indicate the potential of video analytics to represent learner behavior. Further research, should be able to elaborate on learner behavior by collecting large-scale data. In this way, the producers of online video pedagogy will be able to understand the use of this emerging medium and proceed with the appropriate amendments to the current video-based learning systems and practices.},
address = {New York, New York, USA},
author = {Chorianopoulos, Konstantinos and Giannakos, Michail N. and Chrisochoides, Nikos},
booktitle = {Proceedings of the first ACM conference on Learning @ scale conference - L@S '14},
doi = {10.1145/2556325.2567855},
url1 = {Open system for video learning analytics.pdf},
isbn = {9781450326698},
keywords = {analytics,computer education,education,learning,learning analytics,user interactions,video,video lectures},
mendeley-tags = {analytics,computer education,learning,video lectures},
month = mar,
pages = {153--154},
publisher = {ACM Press},
title = {{Open system for video learning analytics}},
url2 = {http://dl.acm.org/citation.cfm?id=2556325.2567855},
year = {2014}
}
@article{Karydis2014,
abstract = {This work studies collective intelligence behavior of Web users that share and watch video content. Accordingly, it is proposed that the aggregated users' video activity exhibits characteristic patterns. Such patterns may be used in order to infer important video scenes leading thus to collective intelligence concerning the video content. To this end, experimentation is based on users' interactions (e.g., pause, seek/scrub) that have been gathered in a controlled user experiment with information-rich videos. Collective information seeking behavior is then modeled by means of the corresponding probability distribution function. Thus, it is argued that the bell-shaped reference patterns are shown to significantly correlate with predefined scenes of interest for each video, as annotated by the users. In this way, the observed collective intelligence may be used to provide a video-segment detection tool that identifies the importance of video scenes. Accordingly, both a stochastic and a pattern matching appro...},
author = {Karydis, Ioannis and Avlonitis, Markos and Chorianopoulos, Konstantinos and Sioutas, Spyros},
doi = {10.1142/S0218213014400107},
url1 = {Identifying Important Segments in Videos A Collective Intelligence Approach.pdf},
issn = {0218-2130},
journal = {International Journal on Artificial Intelligence Tools},
keywords = {Data minining,Signal processing,Video,important-segment detection,interaction,semantics,signal processing,user activity,user-based,web},
language = {en},
mendeley-tags = {Data minining,Signal processing},
month = apr,
number = {02},
publisher = {World Scientific Publishing Company},
title = {{Identifying Important Segments in Videos: A Collective Intelligence Approach}},
url2 = {http://www.worldscientific.com/doi/abs/10.1142/S0218213014400107},
volume = {23},
year = {2014}
}
@inproceedings{Chorianopoulos2014b,
abstract = {Video learning analytics are not open to education stakeholders, such as researchers and teachers, because online video platforms do not share the interactions of the users with their systems. Nevertheless, video learning analytics are necessary to all researchers and teachers that need to understand and improve the effectiveness of the video lecture pedagogy. In this paper, we present an open video learning analytics service, which is freely accessible online. The video learning analytics service (named Social Skip) facilitates the analysis of video learning behavior by capturing learners' interactions with the video player (e.g., seek/scrub, play, pause). The service empowers any researcher or teacher to create a custom video-based experiment by selecting: 1) a video lecture from You Tube, 2) quiz questions from Google Drive, and 3) custom video player buttons. The open video analytics system has been validated through dozens of user studies, which produced thousands of video interactions. In this study, we present an indicative example, which highlights the usability and usefulness of the system. In addition to interaction frequencies, the system models the captured data as a learner activity time series. Further research should consider user modeling and personalization in order to dynamically respond to the interactivity of students with video lectures.},
author = {Chorianopoulos, Konstantinos and Giannakos, Michail N. and Chrisochoides, Nikos and Reed, Scott},
booktitle = {2014 IEEE 14th International Conference on Advanced Learning Technologies},
doi = {10.1109/ICALT.2014.19},
url1 = {Open Service for Video Learning Analytics.pdf},
isbn = {978-1-4799-4038-7},
keywords = {Analytics,Data visualization,Educational institutions,Google,Google Drive,Learning Analytics,Linked Data,Open Learning System,Open Source,Streaming media,Time series analysis,User Interactions,Video,Video Analytics,Video Lecture,YouTube,computer aided instruction,custom video player buttons,education stakeholders,learner activity time series,online video platforms,open video learning analytics service,quiz questions,time series,video lecture,video lecture pedagogy,video player,video streaming},
mendeley-tags = {Analytics,Linked Data,Open Source,Video},
month = jul,
pages = {28--30},
publisher = {IEEE},
shorttitle = {Advanced Learning Technologies (ICALT), 2014 IEEE},
title = {{Open Service for Video Learning Analytics}},
url2 = {http://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=6901389},
year = {2014}
}
@inproceedings{Chorianopoulos2014d,
abstract = {Although there has been a lot of interest in the employment of video games in education, there are no clear design guidelines. In this work, after surveying previous work in video game design, we highlighted three design principles: 1) engage the students with a story and a hero, 2) employ familiar game mechanics from popular video games, and 3) provide constructive trial and error gameplay for learning. As an illustrating example of those principles, we designed a video game that teaches addition and subtraction of signed numbers. Finally, we outline several more serious games that have adopted the above design principles. The results should be useful for designers, teachers, and researchers who work in the area of serious games for learning. Further research should extend and experimentally validate these principles according to the discipline and the learning style of students.},
address = {New York, New York, USA},
author = {Chorianopoulos, Konstantinos and Giannakos, Michail N. and Chrisochoides, Nikos},
booktitle = {Proceedings of the 18th Panhellenic Conference on Informatics - PCI '14},
doi = {10.1145/2645791.2645843},
url1 = {Design Principles for Serious Games in Mathematics.pdf},
isbn = {9781450328975},
keywords = {Design,Design Principles,Education,Interaction Design,Learning,Mathematics,Serious Games},
mendeley-tags = {Design,Education,Serious Games},
month = oct,
pages = {1--5},
publisher = {ACM Press},
title = {{Design Principles for Serious Games in Mathematics}},
url2 = {http://dl.acm.org/citation.cfm?id=2645791.2645843},
year = {2014}
}
@article{Giannakos2014,
abstract = {In this article, we provide an overview of the emerging research area on Analytics and Video-Based Learning. Although there are many and diverse ways of designing learning videos, there is limited understanding of the efficacy and usefulness of each method. Therefore, we survey the state-of-the-art in the design, development and evaluation of open and video-based courses. The main objective is to highlight the importance and benefits of analytics and to support instructors with the appropriate resources for improving the use of their courses. This can be achieved by combining and analyzing learners' interactions with other available data obtained from learners, as such video analytics open new avenues for research on open and video-based courses. In addition to the guidelines for video-based analytics we have selected five indicative case-studies that provide in-depth analysis..},
author = {Giannakos, Michail and Chorianopoulos, Konstantinos and Ronchetti, Marco and Szegedi, Peter and Teasley, Stephanie},
doi = {10.3991/ijet.v9i1.3354},
url1 = {Video-Based Learning and Open Online Courses.pdf},
issn = {1863-0383},
journal = {International Journal of Emerging Technologies in Learning (iJET)},
keywords = {Education,MOOCs,Review of research,Video,Video-based learning},
language = {en},
mendeley-tags = {Education,Video},
month = feb,
number = {1},
pages = {4--7},
title = {{Video-Based Learning and Open Online Courses}},
url2 = {http://journals.sfu.ca/onlinejour/index.php/i-jet/article/view/3354},
volume = {9},
year = {2014}
}
@article{Giannakos2012a,
abstract = {Video-mediated communication (VMC) has become a feasible way to connect people in remote places for work and play. Nevertheless, little research has been done with regard to children and VMC. In this paper, we explore the behavior of a group of children, who exchanged video messages in an informal context. In particular, this paper presents the results of 11-week VMC study of 30 children from the USA and Greece, exploring children’s behavior with the asynchronous video-based messaging tool we developed called VideoPal. In the study, children’s interactions, perceptions, content exchanged and emotions were collected. The results from the analyses highlight that the emotion of happiness dominated in the communication. Moreover, the content included useful personal information and is connected with children’s interactions (e.g., number of views and of recipients). In addition, children generally preferred VideoPal to email because they felt that it was easier and has more fun.},
author = {Giannakos, Michail N. and Chorianopoulos, Konstantinos and Inkpen, Kori and Du, Honglu and Johns, Paul},
doi = {10.1007/s00779-012-0525-2},
url1 = {Understanding childrens behavior in an asynchronous video-mediated communication environment.pdf},
issn = {1617-4909},
journal = {Personal and Ubiquitous Computing},
keywords = {Asynchronous,Children,Emotions,Interactions,Perceptions,Social media,Video-mediated communication,affective,human-computer interaction,messaging,multimedia,social networking,ubiquitous computing},
mendeley-tags = {Social media,affective,human-computer interaction,messaging,multimedia,social networking,ubiquitous computing},
month = apr,
number = {8},
pages = {1621--1629},
title = {{Understanding childrens behavior in an asynchronous video-mediated communication environment}},
url2 = {http://www.springerlink.com/content/u027243678187477/},
volume = {17},
year = {2013}
}
@inproceedings{Giannakos2013,
abstract = {The International Workshop on Analytics on Video-based Learning (WAVe2013) aims to connect research efforts on Video-based Learning with Learning Analytics to create visionary ideas and foster synergies between the two fields. The main objective of WAVe is to build a research community around the topical area of Analytics on video-based learning. In particular, WAVe aims to develop a critical discussion about the next generation of analytics employed on video learning tools, the form of these analytics and the way they can be analyzed in order to help us to better understand and improve the value of video-based learning. WAVe is based on the rationale that combining and analyzing learners' interactions with other available data obtained from learners, new avenues for research on video-based learning have emerged.},
author = {Giannakos, Michail N. and Chorianopoulos, Konstantinos and Ronchetti, Marco and Szegedi, Peter and Teasley, Stephanie D.},
booktitle = {LAK '13 Proceedings of the Third International Conference on Learning Analytics and Knowledge},
doi = {10.1145/2460296.2460358},
url1 = {Analytics on video-based learning.pdf},
isbn = {978-1-4503-1785-6},
keywords = {MOOC,analytics,computer education,e-learning,interaction design,learning analytics,multimedia,video based learning,video lecture,video lectures,workshop},
mendeley-tags = {analytics,computer education,e-learning,multimedia,video lecture,video lectures,workshop},
month = apr,
pages = {283--284},
publisher = {ACM},
title = {{Analytics on video-based learning}},
url2 = {http://dl.acm.org/citation.cfm?id=2460296.2460358},
year = {2013}
}
@inproceedings{Chorianopoulos2013c,
abstract = {There is a growing number and variety of educational video lectures online, but there is limited understanding of their effectiveness in terms of learning and usability. Although there is significant research literature within the individual domains of usability and of video learning, there is limited understanding of their integrated design. In particular, there is limited research on guidelines for usable video lecture design, such as the presence of humans in the video and navigation support through the video. For example, it is established that learners benefit from highly structured learning material, but the manual editing of video is not feasible for most learning organizations and instructors. In order to accommodate this emerging instruction medium we are drawing design principles and models from the research literature on educational technology and video interaction. Moreover, we provide a comprehensive approach to the design of usable video lecture systems and content. Finally, we suggest that learning organizations and instructors should invest additional effort in video systems that support an integrated approach to editing, sharing, and controlling of video lectures.},
address = {New York, New York, USA},
author = {Chorianopoulos, Konstantinos and Giannakos, Michail N.},
booktitle = {Proceedings of the 11th european conference on Interactive TV and video - EuroITV '13},
doi = {10.1145/2465958.2465982},
url1 = {Usability design for video lectures.pdf},
isbn = {9781450319515},
keywords = {computer education,distance learning,e-learning,human-computer interaction,learning,moocs,multimedia,usability design,video lectures},
mendeley-tags = {computer education,distance learning,e-learning,human-computer interaction,multimedia},
month = jun,
pages = {163--164},
publisher = {ACM Press},
title = {{Usability design for video lectures}},
url2 = {http://dl.acm.org/citation.cfm?id=2465958.2465982},
year = {2013}
}
@inproceedings{Ilioudi2013,
abstract = {Many educational organizations are motivated to create and share instructional videos, but there are no guidelines about the presentation styles. In practice, the presentation style of video lectures ranges from simple video capturing of classroom teaching, up to highly elaborate authoring of video presentations that include close-ups and video-cuts of instructors, slides, animations, and interactive drawing boards. In particular, there is limited research about the effects of each presentation style on student learning performance and attitudes. In this work, we examine the effects of video presentation styles in supporting the teaching of mathematics in the secondary education. In addition to a control group that studied through a paper-book, two groups of students attended two distinct styles of video lectures: 1) video capture of class teaching (Talking head style), and 2) close-up video capture of an interactive drawing board with voice-over (Khan style). The participants of our study consisted of 36 students (15 boys and 21 girls, 16 years old), who received the respective three treatments (paper book, talking head, khan style), over the course of three math modules in three weeks’ time. We found that learning effects show up only after the second week and that the Talking Head style was more effective than the book for complex topics.},
author = {Ilioudi, Christina and Giannakos, Michail N. and Chorianopoulos, Konstantinos},
booktitle = {WAVe 2013 The Workshop on Analytics on Video-based Learning},
url1 = {Investigating Differences among the Commonly Used Video Lecture Styles.pdf},
keywords = {Video,computer education,e-learning,enjoyment,khan style,mooc,multimedia,performance,playfulness,satisfaction,talking head lectures,video lectures},
mendeley-tags = {computer education,mooc,multimedia,video lectures},
pages = {21--26},
title = {{Investigating Differences among the Commonly Used Video Lecture Styles}},
url2 = {http://ceur-ws.org/Vol-983/paper5.pdf},
volume = {i},
year = {2013}
}
@article{Chorianopoulos2013,
abstract = {We present a user-based approach for detecting interesting video segments through simple signal processing of users collective interactions with the video player (e.g., seek/scrub, play, pause). Previous research has focused on content-based systems that have the benefit of analyzing a video without user interactions, but they are monolithic, because the resulting key-frames are the same regardless of the user preferences. We developed the open-source SocialSkip system on a modular cloud-based architecture and analyzed hundreds of user interactions within difficult video genres (lecture, how-to, documentary) by modeling them as user interest time series. We found that the replaying activity is better than the skipping forward one in matching the semantics of a video, and that all interesting video segments can be found within a factor of two times the average user skipping step from the local maximums of the replay time series. The concept of simple signal processing of implicit user interactions within video could be applied to any type of Web video system (e.g., TV, desktop, tablet), in order to improve the user navigation experience with dynamic and personalized key-frames.},
author = {Chorianopoulos, Konstantinos},
doi = {10.1186/2192-1962-3-10},
url1 = {Collective intelligence within web video.pdf},
issn = {2192-1962},
journal = {Human-centric Computing and Information Sciences},
keywords = {Analytics,Collective intelligence,Key-frame,Signal processing,User-based,Video,Web,analytics,computer education,crowdsourcing,human-computer interaction,interaction,multimedia,time-series,video lectures},
language = {en},
mendeley-tags = {analytics,computer education,crowdsourcing,human-computer interaction,interaction,multimedia,time-series,video lectures},
month = jun,
number = {1},
pages = {10},
publisher = {Springer},
title = {{Collective intelligence within web video}},
url2 = {http://www.hcis-journal.com/content/3/1/10},
volume = {3},
year = {2013}
}
@inproceedings{Chorianopoulos2013d,
abstract = {Contemporary digital maps provide an option for pedestrian navigation, but they do not account for subjective preferences in the calculation of the shortest path, which is usually provided in terms of absolute distance. For this purpose, we performed a controlled experiment with local pedestrians, who were asked to navigate from point A to point B in a fast manner. The pedestrians’ routes were recorded by means of a GPS device and then plotted on a map for comparison with suggested itinerary from a digital map. We found that the preferred shortest path is significantly different to the suggested one. Notably, the preffered paths were slightly longer than the suggested, but there was no effect in the trip duration because there were fewer obstacles, such as cars. Since many pedestrians employ GPS enabled devices, the findings of this research inform the development of mobile applications and the design of new subjective map layers for city dwellers.},
author = {Armeni, Iro and Chorianopoulos, Konstantinos},
booktitle = {Workshop Proceedings of the 9th International Conference on Intelligent Environments IE'13, July 16-19, 2013, Athens, Greece},
url1 = {Pedestrian navigation and shortest path Preference versus distance.pdf},
keywords = {cartography,citizen science,collective,community,experiment,gps,grass roots,human-computer interaction,map,multimedia,participatory,pedestrian,preference,route,shortest path,trajectory,ubiquitous computing,well-being},
mendeley-tags = {cartography,citizen science,community,grass roots,human-computer interaction,multimedia,participatory,route,trajectory,ubiquitous computing,well-being},
pages = {647--652},
publisher = {IOS},
title = {{Pedestrian navigation and shortest path: Preference versus distance}},
url2 = {http://ebooks.iospress.nl/publication/33920},
year = {2013}
}
@inproceedings{Rautiainen2013,
abstract = {Catch-up TV services on the Web have facilitated time-shifted TV viewing. However, there is limited information about user search behavior with regard to recently time-shifted versus archival TV content. We deployed two distinct content-based web services to explore information retrieval of time-shifted TV content. The first web service is based on a browsing metaphor, while the second is based on free text content search metaphor. We analyzed more than 5000 user sessions from 12 months of logs and found that the programs accessed via browsing categorized program content summaries were typically less than one week old. In contrast, the programs accessed via free text search on subtitle content were typically more than a week old. Our findings provide a first assessment of user behavior in accessing time-shifted and archival TV content. Further research should develop the user experience for content-based TV access and explore the sharing patterns of archival TV content on social networks.},
address = {New York, New York, USA},
author = {Rautiainen, Mika and Heikkinen, Arto and Sarvanko, Jouni and Chorianopoulos, Konstantinos and Kostakos, Vassilis and Ylianttila, Mika},
booktitle = {Proceedings of the 11th european conference on Interactive TV and video - EuroITV '13},
doi = {10.1145/2465958.2465965},
url1 = {Time shifting patterns in browsing and search behavior for catch-up TV on the web.pdf},
isbn = {9781450319515},
keywords = {TV,TiVo,catch-up tv,content-based retrieval,human-computer interaction,information retrieval,multimedia,navigation,software technology,user behavior,video},
mendeley-tags = {TV,TiVo,human-computer interaction,information retrieval,multimedia,navigation,software technology,video},
month = jun,
pages = {117--120},
publisher = {ACM Press},
title = {{Time shifting patterns in browsing and search behavior for catch-up TV on the web}},
url2 = {http://dl.acm.org/citation.cfm?id=2465958.2465965},
year = {2013}
}
@inproceedings{GAS13p22,
abstract = {Sports tracking software for casual exercising has become popular with smart phone users who are concerned about their health and fitness. Nevertheless, there is limited research on the user requirements for sports tracking software, which needs to be fun and easy to use in order to appeal to a broad set of users. For this purpose, we employed a four-week long experiment with five users who were asked to perform multiple workouts with two levels of gamification. The first treatment stands for no gamification and the second treatment provided rich visual feedback, such as speed, distance, elapsed time, map. At the end of the experiment, we asked users to describe the devices. Both devices included GPS sensor, so we also measured the distance covered for each one of the workouts. We found that augmented feedback from mobile self-tracking devices can promote working out, but there is also a trade-off of increased anxiety and disorientation. Thus, we suggest that sports tracking software should be modest about how much and what type of visual information it provides to the user. In particular, we found that the only piece of visual information that had an impact on performance was average speed, which indicates a connection with gamication. Further research should consider additional levels of gamification beyond score, such as graphics, sociability, rules.},
author = {Giannakis, Konstantinos and Chorianopoulos, Konstantinos and Jaccheri, Letizia},
booktitle = {3rd International Workshop on Games and Software Engineering: Engineering Computer Games to Enable Positive, Progressive Change (GAS)},
url1 = {User Requirements for Gamifying Sports Software.pdf},
keywords = {GPS,Interaction styles,augmented feed-back,evaluation,human factors,human-computer interaction,map,multimedia,quantified shelf,sports,ubiquitous computing,well-being},
mendeley-tags = {GPS,evaluation,human-computer interaction,map,multimedia,quantified shelf,sports,ubiquitous computing,well-being},
pages = {22--26},
publisher = {IEEE},
title = {{User Requirements for Gamifying Sports Software}},
year = {2013}
}
@inproceedings{Makris2013,
abstract = {Computer programming has become an important skill and it can be taught from early school years. Previous research has developed and evaluated several visual programming tools that are suitable for computer education in schools. However, little is known about how pedagogic styles affect student attitudes towards learning computer programming. This paper reports on a preliminary study on the influence of alternative teaching styles on student’s enjoyment and attitude towards computing. Two groups of twelve students each were asked to revise a computer game. The traditional instruction group was provided with detailed information, while the encouragement group was asked to help the teacher to change the variables of the game. The results indicate that an encouraging pedagogic style promotes more positive attitudes towards computer programming and more self-confidence than traditional instruction. Further research should repeat the experiment across several weeks for more programming concepts and should also assess the cognitive benefits.},
author = {Makris, Dimosthenis and Euaggelopoulos, Kleomenis and Chorianopoulos, Konstantinos and Giannakos, Michail N.},
booktitle = {WiPSCE ’13, November 11-13, 2013, Aarhus, Denmark},
url1 = {Could you help me to change the variables Comparing instruction to encouragement for teaching programming.pdf},
isbn = {9781450324557},
keywords = {Computational thinking,Computer education,Programming,Scratch,Secondary education,computer education,confidence,encouragement,learning,programming,teaching},
mendeley-tags = {computer education,learning,programming,teaching},
title = {{Could you help me to change the variables ? Comparing instruction to encouragement for teaching programming}},
year = {2013}
}
@inproceedings{Garneli2013,
abstract = {Serious video games have been proposed as a means to engage students with the Science, Technology, Engineering, Mathematics (STEM) curric-ulum, but there is limited research on the required game elements and teaching practices. In particular, there is limited evidence on the effects of the storytelling element and of student involvement in making games on the learning performance and on the attitudes of the students. For this purpose, we designed a between groups experiment with eighty students (12 to 13 years old). They formed three equivalent groups of twenty students each who practiced with a serious game in three different ways. The first group played the storytelling game, the second played the same game but with no story, and the third was engaged with modifying the game code. Finally, the last (control) group practiced traditionally by solving exercises on paper. We found that girls with low grades benefited the most by playing the game and by engaging with the code and that the game making group wishes to repeat the exercise. Further research should perform similar studies with a focus on involving students in serious game modification, over longer periods of time and for additional curriculum topics.},
author = {Garneli, Barbara and Giannakos, Michail N. and Chorianopoulos, Konstantinos and Jaccheri, Letizia},
booktitle = {4th International Conference on Serious Games Development and Applications (SGDA 2013), Trondheim, Norway on 25-27 September 2013.},
url1 = {Learning by Playing and Learning by Making.pdf},
keywords = {CS education,Scratch,behaviorism,children,code engagement,computer education,constructivism,education,human-computer interaction,learning,making,playing,programming environment,serious game,storytelling element},
mendeley-tags = {Scratch,children,computer education,education,human-computer interaction,learning,making,playing},
pages = {76--85},
title = {{Learning by Playing and Learning by Making}},
year = {2013}
}
@inproceedings{ilioudi2013,
abstract = {Many educational organizations are motivated to create and share instructional videos, but there are no guidelines about the presentation styles. In practice, the presentation style of video lectures ranges from simple video capturing of classroom teaching, up to highly elaborate authoring of video presentations that include close-ups and video-cuts of instructors, slides, animations, and interactive drawing boards. In particular, there is limited research about the effects of each presentation style on student learning performance and attitudes. In this work, we examine the effects of video presentation styles in supporting the teaching of mathematics in the secondary education. In addition to a control group that studied through a paper-book, two groups of students attended two distinct styles of video lectures: 1) video capture of class teaching (Talking head style), and 2) close-up video capture of an interactive drawing board with voice-over (Khan style). The participants of our study consisted of 36 students (15 boys and 21 girls, 16 years old), who received the respective three treatments (paper book, talking head, khan style), over the course of three math modules in three weeks’ time. We found that learning effects show up only after the second week and that the Talking Head style was more effective than the book for complex topics.},
address = {Athens},
author = {Ilioudi, Christina and Chorianopoulos, Konstantinos and Giannakos, Michail N.},
booktitle = {7th International Conference in Open and Distance Learning 2013},
editor = {Lionarakis, Antonis},
url1 = {Comparing the camera shot styles of video lectures Close-up versus broad framing of whiteboard and lecturer.pdf},
keywords = {MOOC,Video,e-learning,enjoyment,khan style,performance,playfulness,satisfaction,talking head lectures,teaching,technology-enhnanced learning},
mendeley-tags = {MOOC,e-learning,teaching,technology-enhnanced learning},
pages = {1--7},
title = {{Comparing the camera shot styles of video lectures: Close-up versus broad framing of whiteboard and lecturer}},
year = {2013}
}
@inproceedings{Chorianopoulos2013a,
abstract = {Video lectures are nowadays widely used by growing numbers of learners all over the world. Nevertheless, learners’ interactions with the videos are not readily available, because online video platforms do not share them. In this paper, we present an open-source video learning analytics system. The system captures learners’ interactions with the video player (e.g, pause, replay, forward) and at the same time it collects information about their performance (e.g., cognitive tests) and/or attitudes (e.g., surveys). We have already validated the system and we are working on learner modeling and personalization through large scale data analysis. The tool is a freely available open source project for anyone to try and to improve.},
author = {Chorianopoulos, Konstantinos and Giannakos, Michail N.},
booktitle = {WAVe 2013 The Workshop on Analytics on Video-based Learning},
url1 = {Merging learner performance with browsing behavior in video lectures.pdf},
keywords = {Education,Learning Analytics,User Interactions,Video Based Learning,analytics,computer education,distance learning,e-learning,mooc,multimedia,video lectures video},
mendeley-tags = {analytics,computer education,distance learning,e-learning,mooc,multimedia,video lectures video},
number = {Cmi},
pages = {38--42},
title = {{Merging learner performance with browsing behavior in video lectures}},
url2 = {http://ceur-ws.org/Vol-983/paper9.pdf},
volume = {i},
year = {2013}
}
@article{Giannakos2012,
abstract = {This article investigates the uses and gratifications of the popular social networking site Facebook. In the exploratory stage, 70 users generated phrases to describe the manner they used Facebook. Interestingly, some users not only described the uses, but also mentioned how they perceive these uses. These phrases were coded into 14 items and clustered into four factors. The principal component analysis that was conducted in the third stage of the study, which was addressed to 222 Facebook users, verified the validity of the four factors: Social Connection, Social Network Surfing, Wasting Time and Using Applications. Previous user studies on Facebook have examined the immediate social effects of this popular social networking site, but they have not regarded emerging uses of the platform, such as gaming and applications, which do have a social component as a feature and not as a core principle. The ?Wasting Time? factor and the growth of ?Using Applications? factor indicate that Facebook has already become an integral part of daily computing routine, alongside with the rest of the entertainment desktop and web applications. This article investigates the uses and gratifications of the popular social networking site Facebook. In the exploratory stage, 70 users generated phrases to describe the manner they used Facebook. Interestingly, some users not only described the uses, but also mentioned how they perceive these uses. These phrases were coded into 14 items and clustered into four factors. The principal component analysis that was conducted in the third stage of the study, which was addressed to 222 Facebook users, verified the validity of the four factors: Social Connection, Social Network Surfing, Wasting Time and Using Applications. Previous user studies on Facebook have examined the immediate social effects of this popular social networking site, but they have not regarded emerging uses of the platform, such as gaming and applications, which do have a social component as a feature and not as a core principle. The ?Wasting Time? factor and the growth of ?Using Applications? factor indicate that Facebook has already become an integral part of daily computing routine, alongside with the rest of the entertainment desktop and web applications.},
author = {Giannakos, Michail N. and Chorianopoulos, Konstantinos and Giotopoulos, Konstantinos K. and Vlamos, Panayiotis},
doi = {10.1080/0144929X.2012.659218},
url1 = {Using Facebook out of habit.pdf},
issn = {0144-929X},
journal = {Behaviour \& Information Technology},
keywords = {Facebook,habit,motivations,perceptions,social media,social network sites,social networking,uses and gratifications},
mendeley-tags = {habit,social media,social networking},
month = mar,
number = {6},
pages = {594--602},
publisher = {Taylor \& Francis},
title = {{Using Facebook out of habit}},
url2 = {http://dx.doi.org/10.1080/0144929X.2012.659218},
volume = {32},
year = {2013}
}
@incollection{Chorianopoulos2013b,
abstract = {Content-based video retrieval has been a very efficient technique with new video content, but it has not regarded the increasingly dynamic interactions between users and content. We present a comprehensive survey on user-based techniques and instrumentation for social video retrieval researchers. Community-based approaches suggest there is much to learn about an unstructured video just by analyzing the dy- namics of how it is being used. In particular, we explore three pillars of online user activity with video content: 1) Seeking patterns within a video is linked to interesting video segments, 2) Sharing patterns between users indicate that there is a correlation between social activity and popularity of a video, and 3) Editing of live events is automated through the synchronization of audio across multiple viewpoints of the same event. Moreover, we present three complementary research methods in social video retrieval: Experimental replication of user activity data and signal analysis, data mining and prediction on natural user activity data, and hybrid techniques that combine robust content-based approaches with crowd sourcing of user gener- ated content. Finally, we suggest further research directions in the combination of richer user- and content-modeling, because it provides an attractive solution to the personalization, navigation, and social consumption of videos.},
author = {Chorianopoulos, Konstantinos and Shamma, David Ayman and Kennedy, Lyndon},
booktitle = {Social Media Retrieval},
editor = {Ramzan, Naeem and van Zwol, Roelof and Lee, Jong-Seok and Cl\"{u}ver, Kai and Hua, Xian-Sheng},
url1 = {Social Video Retrieval Research Methods in Controlling, Sharing, and Editing of Web Video.pdf},
isbn = {978-1-4471-4555-4},
keywords = {human-computer interaction,information retrieval,media technology,methodology,multimedia,survey,video},
mendeley-tags = {human-computer interaction,information retrieval,media technology,methodology,multimedia,survey,video},
pages = {3--22},
publisher = {Springer},
title = {{Social Video Retrieval: Research Methods in Controlling, Sharing, and Editing of Web Video}},
url2 = {http://link.springer.com/chapter/10.1007/978-1-4471-4555-4\_1},
year = {2013}
}
@article{Mikalef2013,
abstract = {Informal learning settings, such as museums and cultural heritage locations, have employed interactive mobile applications. Educators and museum curators recognise the value of interactivity, but the optimum level of interactivity in informal learning remains unclear. We developed an informal learning activity with quiz questions about art theory, which we integrated in a between–groups experimental design with three groups of high–school students at an art gallery. Each of the three groups received a different treatment: (a) an interactive mobile–based learning activity, (b) a paper–based version of the same learning activity, and (c) a self–guided museum tour. Students who enrolled with the interactive version showed higher performance in the post–assessment test when compared to the paper–based version. Notably, the benefits of the interactive version are attributed to the immediate feedback of the quiz application during the visit. Further research should perform similar controlled experiments in order to assess the learning benefit of more immersive interactive systems, such as three–dimensional graphics and augmented reality.},
author = {Mikalef, Konstantinos and Giannakos, Michail N. and Chorianopoulos, Konstantinos and Jaccheri, Letizia},
doi = {10.1504/IJMLO.2013.055620},
url1 = {Does informal learning benefit from interactivity The effect of trial and error on knowledge acquisition during a museum visit.pdf},
journal = {International Journal of Mobile Learning and Organisation},
keywords = {computer education,cultural heritage,high school students,human-computer interaction,informal learning,interactivity,knowledge acquisition,learning,mobile,mobile learning,multimedia,museum,museum visiting,m–learning,perceptions,trial and error,ubiquitous computing},
mendeley-tags = {computer education,human-computer interaction,learning,mobile,multimedia,museum,ubiquitous computing},
number = {2},
pages = {158--175},
title = {{Does informal learning benefit from interactivity? The effect of trial and error on knowledge acquisition during a museum visit}},
url2 = {http://inderscience.metapress.com/content/m653021wulw2548v/},
volume = {7},
year = {2013}
}
@inproceedings{Chorianopoulos2012b,
abstract = {Processing, Arduino, and the growth of the associated communities of practice, also called maker communities, has motivated a broader participation of non-technical users in the engineering of interactive systems. Besides online sharing, maker communities meet regularly and share knowledge for various purposes (e.g., creative hacking, social networking, lifelong learning). In the context of maker communities, the understanding of engineering interactive systems (e.g., motivations, objectives, collaboration, process, reports) and the design of the respective tools (e.g., end-user programming for artists, or children) are not well documented. As a remedy, we present a coherent overview of related work, as well as our own experiences in the organization and running of maker workshops. The tutorial format (lecture and hands-on workshop) benefits both practitioners and researchers with an understanding of creative software tools and practices. Moreover, participants become familiar with the organization of maker workshops as 1) a research method for understanding users, 2) an engineering process for interactive computer systems, and 3) a practice for teaching and learning.},
address = {New York, New York, USA},
author = {Chorianopoulos, Konstantinos and Jaccheri, Letizia and Nossum, Alexander Salveson},
booktitle = {Proceedings of the 4th ACM SIGCHI symposium on Engineering interactive computing systems - EICS '12},
url1 = {Creative and open software engineering practices and tools in maker community projects.pdf},
keywords = {3d printer,Processing,arduino,citizen science,collaboration,community,creative process,creativity,grass roots,maker,making,open source},
mendeley-tags = {3d printer,Processing,arduino,citizen science,community,creativity,grass roots,making,open source},
month = jun,
pages = {333--334},
publisher = {ACM Press},
title = {{Creative and open software engineering practices and tools in maker community projects}},
url2 = {http://dl.acm.org/citation.cfm?id=2305484.2305545},
year = {2012}
}
@unpublished{Chorianopoulos2012c,
abstract = {Video search results and suggested videos on web sites are represented with a video thumbnail, which is manually selected by the video uploader among three randomly generated ones (e.g., YouTube). In contrast, we present a grounded user-based approach for automatically detecting interesting key-frames within a video through aggregated users’ replay interactions with the video player. Previous research has focused on content-based systems that have the benefit of analyzing a video without user interactions, but they are monolithic, because the resulting video thumbnails are the same regardless of the user preferences. We constructed a user interest function, which is based on aggregate video replays, and analyzed hundreds of user interactions. We found that the local maximum of the replaying activity stands for the semantics of information rich videos, such as lecture, and how-to. The concept of user-based key-frame detection could be applied to any video on the web, in order to generate a user-based and dynamic video thumbnail in search results.},
author = {Chorianopoulos, Konstantinos},
booktitle = {Information Systems},
url1 = {User-based key frame detection in social web video.pdf},
title = {{User-based key frame detection in social web video}},
year = {2012}
}
@inproceedings{Leftheriotis2012a,
abstract = {MT (Multi-touch) screens are platforms that enhance multiuser collaboration. In this work, we underline the need for novel interaction techniques and toolkits that allow multi-user collaboration on larger MT surfaces. We present ChordiAction toolkit that makes use of a novel chorded interaction technique allowing simultaneous multi-user interaction on scalable MT applications. We describe the design, the architecture and some efficient customizations practices of the toolkit and show how it can be effectively embedded in an application for multiuser interaction. As a proof of concept, we present some example applications using ChordiAction toolkit showing its potentials and discuss our future plans for further evaluation of this technique.},
address = {New York, New York, USA},
author = {Leftheriotis, Ioannis and Chorianopoulos, Konstantinos and Jaccheri, Letizia},
booktitle = {Proceedings of the 2012 ACM international conference on Interactive tabletops and surfaces - ITS '12},
doi = {10.1145/2396636.2396703},
url1 = {Tool support for developing scalable multiuser applications on multi-touch screens.pdf},
isbn = {9781450312097},
keywords = {Surface,chords,collaboration,human-computer interaction,large multi-touch screens,multi-touch,multi-user,software technology,toolkit,ubiquitous computing},
mendeley-tags = {Surface,collaboration,human-computer interaction,multi-user,software technology,ubiquitous computing},
month = nov,
pages = {371--374},
publisher = {ACM Press},
title = {{Tool support for developing scalable multiuser applications on multi-touch screens}},
url2 = {http://dl.acm.org/citation.cfm?id=2396636.2396703},
year = {2012}
}
@inproceedings{Avlonitis2012,
abstract = {Semantic video research has employed crowdsourcing techniques on social web video data sets such as comments, tags, and annotations, but these data sets require an extra effort on behalf of the user. We propose a pulse modeling method, which analyzes implicit user interactions within web video, such as rewind. In particular, we have modeled the user information seeking behavior as a time series and the semantic regions as a discrete pulse of fixed width. We constructed these pulses from user interactions with a documentary video that has a very rich visual style with too many cuts and camera angles/frames for the same scene. Next, we calculated the correlation coefficient between dynamically detected user pulses at the local maximums and the reference pulse. We have found when people are actively seeking for information in a video, their activity (these pulses) significantly matches the semantics of the video. This proposed pulse analysis method complements previous work in content-based information retrieval and provides an additional user-based dimension for modeling the semantics of a web video.},
address = {New York, New York, USA},
author = {Avlonitis, Markos and Chorianopoulos, Konstantinos and Shamma, David Ayman},
booktitle = {Proceedings of the ACM multimedia 2012 workshop on Crowdsourcing for multimedia - CrowdMM '12},
doi = {10.1145/2390803.2390812},
url1 = {Crowdsourcing user interactions within web video through pulse modeling.pdf},
isbn = {9781450315890},
keywords = {analytics,implicit,interaction,multimedia,pragmatics,pulse,semantics,signal processing,time-series,user activity,video},
mendeley-tags = {analytics,multimedia,pulse,semantics,signal processing,time-series},
month = oct,
pages = {19},
publisher = {ACM Press},
title = {{Crowdsourcing user interactions within web video through pulse modeling}},
url2 = {http://dl.acm.org/citation.cfm?id=2390803.2390812},
year = {2012}
}
@unpublished{Chorianopoulos2012,
abstract = {We present a method for user-based detection and ranking of important video key-frames. Instead of content-based analysis that detects object, shot, and scene changes, we analyze aggregate user interactions (e.g., pause, seek/scrub) within a web video. Moreover, we validated the proposed method in a controlled lab experiment with lecture videos that content-based approaches cannot structure meaningfully. In particular, we modeled the collective information seeking behavior as a time series of user interest. We assumed that replay of a video segment stands for increased user interest in that segment and skip stands for less interesting parts. We found that only the replay time series matches significantly well the semantics of the lecture video. In practice, user-based detection of interesting video frames might improve navigation within information-rich but visually unstructured videos (e.g., lectures) on the web and has also the potential to improve video search results with personalized video thumbnails.},
author = {Chorianopoulos, Konstantinos and Avlonitis, Markos},
booktitle = {Information Systems},
url1 = {FrameRank Implicit User-based key frame Detection and Ranking.pdf},
title = {{FrameRank : Implicit User-based key frame Detection and Ranking}},
year = {2012}
}
@techreport{Chorianopoulos2012d,
abstract = {Project CULT aims to create a cooperation platform (hardware/software/practices) for the benefit of schools that reside in remote (rural, islands) areas. For this purpose, we are employing both established and novel interaction and communication technologies. Moreover, we are working closely with schools and teachers, in order to leverage their ability to adopt and adapt technologies in ways that are suitable for their skills and needs. In particular, we have shaped our understanding about remote schools by means of an extended cultural probes study, which was administered during the first part of the research. Then, we have established a series of local workshops that involved teachers in the adoption and adaptation of novel technologies in ways that are suitable for them. Moreover, we have developed and evaluated novel user interfaces for interactive whiteboards that facilitate collaborative learning, as well as a video assisted distance learning system.},
address = {Corfu},
author = {Chorianopoulos, Konstantinos and Giannakos, Michail N.},
url1 = {Practices and technologies for collaborative informal learning in Remote Schools.pdf},
institution = {Ionian University, Greece},
keywords = {e-learning,education,human-computer interaction,informal,learning,multimedia,school,technology,technology-enhnanced learning,ubiquitous computing,video},
mendeley-tags = {e-learning,education,human-computer interaction,learning,multimedia,technology-enhnanced learning,ubiquitous computing,video},
pages = {13--14},
title = {{Practices and technologies for collaborative informal learning in Remote Schools}},
year = {2012}
}
@inproceedings{Chorianopoulos2012a,
abstract = {Every second millions of users enjoy content streaming on diverse video players (e.g., Web, Apps, social networks) and create billions of interactions within online video, such as play, pause, seek/scrub. This collective intelligence of video viewers might be leveraged into useful information for improved video navigation. For example, we can accurately detect and retrieve interesting scenes through the analysis of the aggregated users' replay interactions with the video player. Effective crowdsourcing of video interactions is grounded on previous work in multimedia, user modeling, and controlled user experiments. These research issues are described for the case of user-based detection of video thumbnails that stand for the semantics of the video. Moreover, we demonstrate the respective experimental environment with a focus on educational and user generated (e.g., how-to, lecture) videos.},
address = {New York, New York, USA},
author = {Chorianopoulos, Konstantinos},
booktitle = {Proceedings of the 18th Brazilian symposium on Multimedia and the web - WebMedia '12},
doi = {10.1145/2382636.2382642},
url1 = {Crowdsourcing user interactions with the video player.pdf},
isbn = {9781450317061},
keywords = {analytics,collective intelligence,crowdsourcing,information retrieval,interaction,key-frame,multimedia,replay,semantics,signal processing.,user-based,video},
mendeley-tags = {analytics,collective intelligence,crowdsourcing,information retrieval,interaction,multimedia,semantics,video},
month = oct,
pages = {13},
publisher = {ACM Press},
title = {{Crowdsourcing user interactions with the video player}},
url2 = {http://dl.acm.org/citation.cfm?id=2382636.2382642},
year = {2012}
}
@inproceedings{Aasbakken2012,
abstract = {The goal of this work is to explore the relationship between pervasive software and user engagement towards environmental issues. We study this relationship in the context of an art installation that concerns the water cycle in nature. The research question is: How can we design and evaluate software that becomes a medium to engage and inform the user? We have gathered empirical data during a two days exhibition of two versions of a pervasive art installation by: observations, questionnaires, and input logs. Data analysis reveals that the art installation engaged users, with focus on young children, and communicated the intended message. The results are organized according to five important factors for developing and evaluating interacting art installations. These are: 1) data collection method; 2) user interaction; 3) social interaction; 4) issues about children; 5) message comprehension. We suggest that these factors can inform engineering practices for engaging software like video-games.},
author = {Aasbakken, Mia and Chorianopoulos, Konstantinos and Jaccheri, Letizia},
booktitle = {2nd International Workshop on Games and Software Engineering Realizing User Engagement with Game Engineering Techniques , ICSE 2012 workshop},
doi = {10.1109/GAS.2012.6225923},
url1 = {Evaluation of User Engagement and Message Comprehension in a Pervasive Software Installation.pdf},
keywords = {Social engagement,art,art installation,children,computer education,creativity,evaluation,human-computer interaction,interactivity,multi-touch,multimedia,pervasive software,software technology,surface,sustainabiity,tabletop,ubiquitous computing},
mendeley-tags = {art,children,computer education,creativity,evaluation,human-computer interaction,multi-touch,multimedia,software technology,surface,sustainabiity,tabletop,ubiquitous computing},
pages = {27--30},
publisher = {IEEE},
title = {{Evaluation of User Engagement and Message Comprehension in a Pervasive Software Installation}},
url2 = {http://dx.doi.org/10.1109/GAS.2012.6225923},
year = {2012}
}
@incollection{Leftheriotis2012,
abstract = {In this paper, we propose a user-based video-indexing method, that automatically generates thumbnails of the most important scenes of an online video stream, by analyzing users’ interactions with a web video player. As a test bench to verify our idea we have extended the YouTube video player into the VideoSkip system. In addition, VideoSkip uses a web-database (Google Application Engine) to keep a record of some important parameters, such as the timing of basic user actions (play, pause, skip). Moreover, we implemented an algorithm that selects representative thumbnails. Finally, we populated the system with data from an experiment with nine users. We found that the VideoSkip system indexes video content by leveraging implicit users interactions, such as pause and thirty seconds skip. Our early findings point toward improvements of the web video player and its thumbnail generation technique. The VideSkip system could compliment content-based algorithms, in order to achieve efficient video-indexing in difficult videos, such as lectures or sports.},
address = {Berlin, Heidelberg},
author = {Leftheriotis, Ioannis and Gkonela, Chrysoula and Chorianopoulos, Konstantinos},
booktitle = {2nd International ICST Conference on User Centric Media (UCMEDIA 2010)},
doi = {10.1007/978-3-642-35145-7\_16},
editor = {Alvarez, Federico and Costa, Cristina},
url1 = {/Efficient Video Indexing on the Web A System that Crowdsources User Interactions with a Video Player.pdf},
isbn = {978-3-642-35144-0},
keywords = {crowdsourcing,google app engine,human-computer interaction,indexing,interactive tv,multimedia,pragmatics,semantics,software technology,thumbnails,time-series,video,video lectures,youtube},
mendeley-tags = {human-computer interaction,multimedia,software technology,time-series,video lectures},
month = jan,
pages = {123--131},
publisher = {Springer Berlin Heidelberg},
series = {Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering},
title = {{Efficient Video Indexing on the Web : A System that Crowdsources User Interactions with a Video Player}},
url2 = {http://dx.doi.org/10.1007/978-3-642-35145-7\_16},
volume = {60},
year = {2012}
}
@inproceedings{Giannakos2012c,
abstract = {Serious video games that enable students to engage into topics as mathematics through an enjoyment process are becoming increasingly popular. However, there is lack of empirical evidence on the relationship between students’ enjoyment and their intention to use serious video games. This study is about a storytelling serious video game, which has the goal to improve the mathematical skills of players. The game has a plot, featuring a story in which a mission is assigned to the player. The story and the mission are used to stimulate the students’ interest and motivate them to play the game. The empirical study is a controlled experiment to which 46 Gymnasium (middle school) students participated. Results confirmed the positive effects of the enjoyment on students’ intention to use storytelling serious games. Notably, we found that gender has a moderating effect on the relationships between enjoyment and intention to use the game. The results of this study suggest that games with a storytelling component might be attractive to girls.},
author = {Giannakos, Michail N. and Chorianopoulos, Konstantinos and Jaccheri, Letizia and Chrisochoides, Nikos},
booktitle = {Edutainment 2012},
doi = {10.1007/978-3-642-33466-5\_10},
url1 = {This Game Is Girly! Perceived Enjoyment and Student Acceptance of Edutainment.pdf},
keywords = {Scratch,children,computer education,e-learning,enjoyment,mathematics,multimedia,serious,storytelling,video game},
mendeley-tags = {Scratch,children,computer education,e-learning,multimedia},
pages = {89--98},
publisher = {Springer},
title = {{This Game Is Girly! Perceived Enjoyment and Student Acceptance of Edutainment}},
url2 = {http://link.springer.com/chapter/10.1007/978-3-642-33466-5\_10},
year = {2012}
}
@inproceedings{Giannakos2012b,
abstract = {Educational video games have been employed by teachers in order to make educational software more attractive to students. However, limited research has been made on the design and assessment of the storytelling elements and the educational effectiveness of these games in sciences curricula. For this purpose, we used Scratch to develop a storytelling mathematics video game and then we measured its educational effect to a small group of twelve students. We found that the story-based math video game has captivated the interest of students and it has been beneficial in the improvement of their performance in an assessment test. Most notably, the improvement was higher for students who used to have poor performance in mathematics. In practice, educators should develop similar games for similar science topics (e.g., physics, chemistry, etc), while further research should consider the active involvement of students in the design of serious games.},
author = {Giannakos, Michail N. and Chorianopoulos, Konstantinos and Jaccheri, Letizia},
booktitle = {In Proceedings of the 2012 12th IEEE International Conference on Advanced Learning Technologies},
doi = {10.1109/ICALT.2012.16},
url1 = {Math is not only for Science Geeks Design and Assessment of a Storytelling Serious Video Game.pdf},
isbn = {9780769547022},
keywords = {Scratch,children,computer education,e-learning,math,multimedia,performance,serious,storytelling,video game},
mendeley-tags = {Scratch,children,computer education,e-learning,multimedia},
number = {ix},
pages = {418--419},
publisher = {IEEE Computer Society},
title = {{Math is not only for Science Geeks : Design and Assessment of a Storytelling Serious Video Game}},
url2 = {www.ionio.gr/~mgiannak/ICALT\_2012.pdf},
year = {2012}
}
@inproceedings{KonstantinosMikalef2012,
abstract = {Educators and museum curators have recognized the value of interactivity, but it remains unclear what is the right level of interactivity in informal learning settings, such as museums. In this study, we explore the effect of in- creasing levels of interactivity on learning performance and students’ intention for future museum visits. We developed an educational mobile application based on QR codes and quiz software, in order to augment visual arts comprehension during a visit to an art gallery. In addition to the mobile-based version of the game, a paper-based version was also employed followed by a controlled experiment. A total of 60 lyceum students (between 15 and 16 years old) participated in a between-groups evaluation that compared the performance of three levels of interactivity (passive guided tour, paper-based, mobile-based), as well as the perceptions among the groups. The results indicate that the mobile-based student group had higher performance in the post-assessment when compared with the paper-based one. Notably, perceived interest for the game affects students’ perceptions for a future museum visit. Further research should consider the effects of higher-fidelity types of mobile applications, such as 3D graphics, as well as augmented-reality games.},
address = {Berlin, Heidelberg},
author = {Mikalef, Konstantinos and Giannakos, Michail N. and Chorianopoulos, Konstantinos and Jaccheri, Letizia},
booktitle = {ICEC 2012},
doi = {10.1007/978-3-642-33542-6},
editor = {Herrlich, Marc and Malaka, Rainer and Masuch, Maic},
url1 = {Do Not Touch the Paintings! The Benefits of Interactivity on Learning and Future Visits in a Museum.pdf},
isbn = {978-3-642-33541-9},
keywords = {computer education,e-learning,human-computer interaction,informal learning,mobile,mobile learning,multimedia,museum,perceptions,performance,ubiquitous computing},
mendeley-tags = {computer education,e-learning,human-computer interaction,mobile,multimedia,museum,ubiquitous computing},
pages = {553--561},
publisher = {Springer},
series = {Lecture Notes in Computer Science},
title = {{Do Not Touch the Paintings! The Benefits of Interactivity on Learning and Future Visits in a Museum}},
url2 = {http://www.springerlink.com/content/n20l520212624g44/},
volume = {7522},
year = {2012}
}
@article{Chorianopoulos2011,
abstract = {In this introduction to the special issue of Entertainment Computing on the new TV landscape, we introduce interactive television (iTV) research as one of the pillars in the field of entertainment computing. Although entertainment computing has been associated mainly with video-games, there is also more than a couple of decades’ research in computer applications for television. Contemporary infrastructures have been converging towards mature development platforms, but there are still several user experience issues in TV applications (TV Apps). Here, we explore significant contributions to interactive TV, and we provide directions for further research in user experience design for TV Apps.},
author = {Chorianopoulos, Konstantinos and Geerts, David},
doi = {10.1016/j.entcom.2011.03.009},
url1 = {Introduction to User Experience Design for TV Apps.pdf},
issn = {18759521},
journal = {Entertainment Computing},
keywords = {entertainment,itv,mobile tv,multimedia,social tv,survey,television,tv apps,user experience},
mendeley-tags = {entertainment,multimedia,survey},
month = mar,
title = {{Introduction to User Experience Design for TV Apps}},
url2 = {http://dx.doi.org/10.1016/j.entcom.2011.03.009},
year = {2011}
}
@inproceedings{Chorianopoulos2011a,
abstract = {In this paper, we present a system that facilitates the analysis of user activity within a web video. Previous research in user-based techniques has assumed an extra effort from the users, such as video replies, comments, tags, and annotations. We have developed and evaluated the SocialSkip system, which improves sense making of web videos by visualizing the simplest form of user interactions with video, such as pause, and seek. In contrast to previous stand-alone implementations, the SocialSkip system employs a web-video player and cloud-based resources (application logic, database, content). The system was validated with two user studies, which provided several hundreds of user interactions with five types of web video (sports, comedy, lecture, documentary, how-to). We found that seeking activity within web video is reversely proportional to how interesting the video is. Moreover, we suggest that if the users are actively seeking for information within a video (e.g., lecture, how-to), then the user activity graph could be associated with the semantics of the video. Finally, SocialSkip provides an open architecture for collaborative contributions to the analysis of the user activity data, in a fashion similar to the TRECVID workshop series.},
author = {Chorianopoulos, Konstantinos and Leftheriotis, Ioannis and Gkonela, Chrysoula},
booktitle = {9th european conference on European interactive television conference (EuroITV '11)},
doi = {10.1145/2000119.2000124},
url1 = {SocialSkip Pragmatic Understanding within Web Video.pdf},
keywords = {Pragmatics,User-Based,Web Video,YouTube,analytics,cloud computing,human-computer interaction,information retrieval,multimedia,software technology,video lectures},
mendeley-tags = {YouTube,analytics,human-computer interaction,information retrieval,multimedia,software technology,video lectures},
pages = {25--28},
title = {{SocialSkip: Pragmatic Understanding within Web Video}},
url2 = {http://doi.acm.org/10.1145/2000119.2000124},
year = {2011}
}
@inproceedings{Du2011,
abstract = {Pen pal programs for connecting students from around the world through letter writing have been popular for generations. However, traditional technologies have several limitations in supporting pen pal activities. In this study, we explored the potential of video-based asynchronous messaging in supporting the development of children’s cross-cultural friendships. This paper presents the results of a 2-month study of 30 children from the USA and Greece, exploring their uses of, and experiences with, email and an asynchronous video-based messaging tool we developed called VideoPal. The results from this work highlight the important benefits video provides compared to its text counterpart - email. We conclude with a discussion of the key factors that video enables to benefit the development of children’s long-distance friendships.},
address = {London},
author = {Du, Honglu and Inkpen, Kori and Chorianopoulos, Konstantinos and Czerwinski, Mary and Johns, Paul and Hoff, Aaron and Roseway, Asta and Morlidge, Sarah and Tang, John and Gross, Tom},
booktitle = {ECSCW 2011: Proceedings of the 12th European Conference on Computer Supported Cooperative Work, 24-28 September 2011, Aarhus Denmark},
doi = {10.1007/978-0-85729-913-0},
editor = {B\o dker, Susanne and Bouvin, Niels Olof and Wulf, Volker and Ciolfi, Luigina and Lutters, Wayne},
url1 = {VideoPal Exploring Asynchronous Video-Messaging to Enable Cross-Cultural Friendships.pdf},
isbn = {978-0-85729-912-3},
keywords = {Asynchronous,Children,Interactions,Pen pal,Video-mediated communication,children,computer education,computer mediated communication,longitudinal,messaging,software technology},
mendeley-tags = {children,computer education,computer mediated communication,messaging,software technology},
pages = {273--292},
publisher = {Springer London},
title = {{VideoPal: Exploring Asynchronous Video-Messaging to Enable Cross-Cultural Friendships}},
url2 = {http://www.springerlink.com/content/r4631716g3w71157/},
year = {2011}
}
@inproceedings{Kravvaris2011,
abstract = {Many schools are replacing traditional whiteboards with interactive versions connected to computers and operated with a digital pen. Previous research has established that interactive whiteboards facilitate the learning activities, but there is limited research on the usability of the available digital pens. In particular, the Wiimote project is a cheap interactive whiteboard that employs an infrared pen, which is available in two versions: 1) push button and 2) tip activated. The push button is a pen which functions is similar to that of a mouse and the tip activated is a pen that acts like a "real" pen. In this article, we present an experiment that compares the usability of two infrared pens (push button and tip activated) in a target acquisition and a docking task. In addition to those typical input device tasks, we developed a more realistic drawing task, in order to assess the accuracy of each input device. We found that the tip activated pen is more usable, more accurate, and creates less fatigue.},
author = {Kravvaris, D. and Thanou, E. and Chorianopoulos, Konstantinos},
booktitle = {Informatics (PCI), 2011 15th Panhellenic Conference on},
url1 = {Evaluation of Tip-Activated and Push-Button Infrared Pens for Interactive Whiteboards.pdf},
keywords = {computer education,docking,human-computer interaction,infrared pen,interactive whiteboard,push button,surface,target acquisition,tip activated,ubiquitous computing,wiimote project},
mendeley-tags = {computer education,human-computer interaction,surface,ubiquitous computing},
pages = {287--291},
title = {{Evaluation of Tip-Activated and Push-Button Infrared Pens for Interactive Whiteboards}},
url2 = {http://ieeexplore.ieee.org/xpl/freeabs\_all.jsp?arnumber=6065103},
year = {2011}
}
@inproceedings{Du2011a,
abstract = {In this paper we describe VideoPal, a novel video based asynchronous communication system. VideoPal is currently being used by approximately 30 4th and 5th grade students from the US and Greece to explore the opportunities and challenges of video-mediated asynchronous communication in supporting traditional Pen Pal activities.},
author = {Du, Honglu and Inkpen, Kori and Tang, John and Roseway, Asta and Hoff, Aaron and Johns, Paul and Czerwinski, Mary and Meyers, Brian and Chorianopoulos, Konstantinos and Gross, Tom and Lungstrang, Peter},
booktitle = {Adjunct Proceedings of CSCW 2011},
url1 = {VideoPal An Asynchronous Video Based Communication System to Connect Children from US and Greece.pdf},
keywords = {Children,Education,Pen Pal,Video,collaboration,computer education,human-computer interaction,media technology,software technology,synchronous CMC},
mendeley-tags = {collaboration,computer education,human-computer interaction,media technology,software technology},
title = {{VideoPal : An Asynchronous Video Based Communication System to Connect Children from US and Greece}},
year = {2011}
}
@inproceedings{Du2011b,
abstract = {In this paper we provide a description of VideoPal, an asynchronous video-mediated communication tool.},
author = {Du, Honglu and Inkpen, Kori and Tang, John and Roseway, Asta and Hoff, Aaron and Johns, Paul and Czerwinski, Mary and Meyers, Brian and Chorianopoulos, Konstantinos and Gross, Tom and Lungstrang, Peter},
booktitle = {Adjunct Proceedings of CSCW 2011},
url1 = {VideoPal System Description.pdf},
keywords = {Asynchronous CMC,VideoPal,collaboration,human-computer interaction,media technology,software technology},
mendeley-tags = {collaboration,human-computer interaction,media technology,software technology},
number = {Figure 1},
pages = {1--2},
title = {{VideoPal : System Description}},
year = {2011}
}
@inproceedings{Leftheriotis2011a,
abstract = {In this work, we present the design and implementation of a chorded menu for multiple users on a large multi-touch vertical display. Instead of selecting an item in a fixed menu by reaching for it, users make a selection by touching multiple fingers simultaneously on any place of the display. Previous research on multi-touch toolkits has provided basic access to touch events, but there is no support for advanced user interface widgets, such as chords. For this purpose, we extended the open-source PyMT toolkit with an architecture that supports alternative user interaction strategies with chorded menus. In addition, we built a multi-user extension that supports chords for two or more users. Chords could be used for having user-aware MT applications. Our toolkit is open source and has been designed as a widget that could be integrated into broader interaction frameworks for multi-touch screens.},
author = {Leftheriotis, Ioannis and Chorianopoulos, Konstantinos},
booktitle = {3rd ACM SIGCHI symposium on Engineering interactive computing systems (EICS '11)},
doi = {10.1145/1996461.1996513},
url1 = {Multi-user Chorded Toolkit for Multi-touch Screens.pdf},
keywords = {Multi-touch,PyMT,Surface,architecture,chord,human-computer interaction,large display,multi-user,software technology,toolkit,ubiquitous computing},
mendeley-tags = {Surface,human-computer interaction,software technology,ubiquitous computing},
pages = {161--164},
title = {{Multi-user Chorded Toolkit for Multi-touch Screens}},
url2 = {http://doi.acm.org/10.1145/1996461.1996513},
year = {2011}
}
@inproceedings{Leftheriotis2011,
abstract = {In this paper, we present an updated set of experimental tasks and measures for large multi-touch (MT) input devices. In addition to a multi-user condition, we have employed an updated set of tasks, as well as subjective measures for user enjoyment. In the first experiment (a target acquisition task with two moving targets), the MT was more efficient than the mouse. Surprisingly, we found that the reduced accuracy of MT did not affect the perceived usability, or the enjoyment of the users. In the second experiment (a multiple shapes docking task), the MT was again more efficient and enjoying than the mouse. In the two-user condition, we found that performance and enjoyment was always higher than the single-user conditions, regardless of input device and task. Besides the quantitative results, we observed that users employed diverse interaction strategies in the MT condition, such as bi-manual input. The proposed tasks and the results support the use of MT in entertainment applications (multimedia and video-games), collaborative work, and scientific visualizations with complex data.},
author = {Leftheriotis, Ioannis and Chorianopoulos, Konstantinos},
booktitle = {3rd ACM SIGCHI symposium on Engineering interactive computing systems (EICS '11)},
doi = {10.1145/1996461.1996536},
url1 = {User Experience Quality in Multi-Touch Tasks.pdf},
keywords = {Multi-touch,collaboration,human-computer interaction,input,large screen,mouse,multi-user,software technology,surface,task,ubiquitous computing,user experience},
mendeley-tags = {collaboration,human-computer interaction,software technology,surface,ubiquitous computing},
pages = {277--282},
title = {{User Experience Quality in Multi-Touch Tasks}},
url2 = {http://doi.acm.org/10.1145/1996461.1996536},
year = {2011}
}
@inproceedings{Giannakos2011,
abstract = {Video-mediated communication (VMC) has become a feasible way to connect people in remote places for work and play. Nevertheless, little research has been done with regard to children and VMC. In this paper, we explore the behavior of a group of children, who exchanged video messages in an informal context. In particular, we have analyzed 386 videos over a period of 11 weeks, which were exchanged by 30 students of 4 th and 5 th grade from USA and Greece. We found that the number of views and the duration of a video message significantly depend on the gender of the viewer and creator. Most notably, girls created more messages, but boys viewed their own messages more. Finally, there are video messages with numerous views, which indicates that some videos have content qualities beyond the communication message itself. Overall, the practical implications of these findings indicate that the developers of asynchronous VMC should consider functionalities for preserving some of the video messages.},
address = {Berlin, Heidelberg},
author = {Giannakos, Michail N. and Chorianopoulos, Konstantinos and Johns, Paul and Inkpen, Kori and Du, Honglu},
booktitle = {Human-Computer Interaction – INTERACT 2011},
doi = {10.1007/978-3-642-23774-4},
editor = {Campos, Pedro and Graham, Nicholas and Jorge, Joaquim and Nunes, Nuno and Palanque, Philippe and Winckler, Marco},
url1 = {Childrens Interactions in an Asynchronous Video Mediated Communication Environment.pdf},
isbn = {978-3-642-23773-7},
keywords = {Asynchronous,Children,Gender,Thread,Video-Mediated Communication,children,computer education,computer mediated communication,messaging},
mendeley-tags = {children,computer education,computer mediated communication,messaging},
pages = {199--206},
publisher = {Springer Berlin Heidelberg},
series = {Lecture Notes in Computer Science},
title = {{Childrens Interactions in an Asynchronous Video Mediated Communication Environment}},
url2 = {http://www.springerlink.com/content/y51w14466hk85852/},
volume = {6946},
year = {2011}
}
@incollection{Willis2010,
abstract = {The approach often adopted by Human Computer Interaction (HCI) focuses on exchanges between a person and the interface of a device situated within a specific context of use. This view is increasingly challenged by the complex and dynamic world of the physical and social environment integrated with ubiquitous technologies, which requires an alternative view that sees people creating settings which frame and structure their encounters. As a result, in recent years, HCI researchers have recognized the need for social and physical data to be gathered and interpreted, but have often been frustrated in their attempts to codify and make sense of the complex and dynamic nature of the real world of human experience. Developments in the early 90s such as the emergence of the field of Computer Supported Cooperative Work (CSCW), the introduction of the concept of social navigation (Hook et al. 2003), work on ambient environments, the UbiComp conference series as well as more theoretical positions on embodied or situated interaction (Dourish 2001, McCullough 2005) have all lead the way to a new understanding of HCI. Another driver for this change in emphasis in HCI is the emergence of mobile and ubiquitous computing that has brought significant changes in social and cultural practices in spatial settings. Interactions through and with ubiquitous technologies no longer require physical co-presence and have broadened the range of possible interactions as well as the range of settings in which these interactions can unfold. The basis for this lies in the fact that physical distance no longer prevents many of the types of interactions and encounters that had previously been confined to face-to-face contact. As a result, there has been much discussion on the role of spatial setting and interaction mediated through technologies such as that on the role of space and agency in the quality of the interaction (Dourish and Harrisson 1996) and also the broader concept of the situated behavior and actions (Suchman 1987). A good deal has also been written on the subject of social collaboration among individuals using communication devices and the conditions or features that are required to enable such activities (Gaver 1992; Paulos and Goodman 2004; Hook et al. 2003; Churchill et al. 2004). Further discussion has focused on the technologies themselves, assessing the social impact of the emerging forms of behavior, such as the activities of ad hoc communities enabled through mobile technologies (Rheingold 2002), or the patterns of mobile phones’ use (Katz and Aakhus 2002). Finally, numerous applications and locative media projects (e.g., Harle and Hopper 2005) which explore interactions through realization have been developed. These projects and research offer many useful insights, but there still remain many questions about how to create the conditions for meaningful and persisting shared interactions in public space. The challenge is not only to build systems that respond to rich and dynamic social and physical events, but also to provide a structure for sustainable participation and sharing.},
address = {London},
author = {Willis, Katharine S. and Roussos, George and Chorianopoulos, Konstantinos and Struppek, Mirjam},
booktitle = {Shared Encounters},
chapter = {1},
doi = {10.1007/978-1-84882-727-1},
editor = {Willis, Katharine S. and Roussos, George and Chorianopoulos, Konstantinos and Struppek, Mirjam},
url1 = {Shared Encounters.pdf},
isbn = {978-1-84882-726-4},
keywords = {architectural space,architecture,collaboration,community,human-computer interaction,media technology,ubiquitous computing},
mendeley-tags = {architecture,human-computer interaction,media technology,ubiquitous computing},
number = {Suchman 1987},
pages = {1--15},
publisher = {Springer London},
series = {Computer Supported Cooperative Work},
title = {{Shared Encounters}},
url2 = {http://www.springerlink.com/index/10.1007/978-1-84882-727-1},
year = {2010}
}
@inproceedings{Giannakos2010,
abstract = {This paper investigates the uses of the popular social networking site Facebook, and the perceptions of the users which derive from their Facebook experience. In the exploratory stage, 70 users generated phrases to describe the manner they used Facebook. Interestingly, some users do not only describe the uses, but also mention how they perceive these uses. These phrases were coded into 14 items and then clustered into 4 factors. The second stage of the study, which was addressed to 131 Facebook users, the factor analysis that was conducted, verified the validity of the four factors: Social Connection, Social Network Surfing, Wasting Time, Using Applications. Finally, the results were analyzed in order to interpret each factor's impact and to enable a comparison with previous research regarding the same subject. These showed how users continue to primarily regard Facebook as a means of socializing with other users, but also the extent to which Facebook has become a part of their daily routine, something that is indicated by the impact of the "Wasting Time" factor. Further research can be conducted by addressing a greater number of users, selected with a less random manner and possibly with a different (cultural, economical etc.) background.},
address = {New York, New York, USA},
author = {Giannakos, Michail N. and Giotopoulos, Konstantinos K. and Chorianopoulos, Konstantinos},
booktitle = {Proceedings of the 14th International Academic MindTrek Conference on Envisioning Future Media Environments - MindTrek '10},
doi = {10.1145/1930488.1930521},
url1 = {In the face (book) of the daily routine.pdf},
isbn = {9781450300117},
keywords = {human-computer interaction,online interactions,social media,social networking,social networks,uses and perceptions},
mendeley-tags = {human-computer interaction,social media,social networking},
month = oct,
pages = {153--157},
publisher = {ACM Press},
title = {{In the face (book) of the daily routine}},
url2 = {http://portal.acm.org/citation.cfm?id=1930488.1930521},
year = {2010}
}
@inproceedings{Chorianopoulos2010b,
abstract = {The introduction and wide adoption of small and powerful mobile computers, such as smart phones and tablets, has raised the opportunity of employing them into multi-device scenarios and blending the distinction between input and output devices. In particular, the partnership between a personal device and a shared one provides two possible output screens. Then, one significant research issue is to balance the visual interface between two devices with advanced output abilities. Do the devices compete or cooperate for the attention and the benefit of the user? Most notably, how multi-device interaction is appreciated in multi-user scenarios? Previous research has raised and considered the above research issues and questions for dual screen set-ups in the work environment. In our research, we are exploring multi-device user interface configurations in the context of a leisure environment and for entertainment applications. Our objective is to provide interaction possibilities that are more than the sum of the parts.},
address = {New York, New York, USA},
author = {Chorianopoulos, Konstantinos and Fern\'{a}ndez, Francisco Javier Bur\'{o}n and Salcines, Enrique Garc\'{\i}a and {de Castro Lozano}, Carlos},
booktitle = {Proceedings of the International Conference on Advanced Visual Interfaces - AVI '10},
doi = {10.1145/1842993.1843096},
url1 = {Delegating the visual interface between a tablet and a TV.pdf},
isbn = {9781450300766},
keywords = {TV,design,evaluation,human-computer interaction,interaction,multimedia,tablet,ubiquitous computing},
mendeley-tags = {human-computer interaction,multimedia,ubiquitous computing},
month = may,
pages = {418},
publisher = {ACM Press},
title = {{Delegating the visual interface between a tablet and a TV}},
url2 = {http://portal.acm.org/citation.cfm?id=1842993.1843096},
year = {2010}
}
@inproceedings{Spiridonidou2010,
abstract = {In this paper, we describe the process of gathering data from remote schools. We employed cultural probes and analyzed the collected data with the use of the affinity diagrams. This study includes data gathered from more than ten remote schools and involved more than a hundred students and teachers in the process. This is a novelty as previous cultural probes studies have been done on a small scale and have mostly considered urban environments. We found that ICT technologies might not be employed as planned in remote places and that affinity diagrams are more suitable for analyzing unstructured data (e.g., photos, diaries) rather than semi-structured questionnaires. The results of this research provide insights for analyzing cultural probes from remote places.},
author = {Spiridonidou, Antonia. and Kampi, Ioanna and Chorianopoulos, Konstantinos},
booktitle = {workshop on Digital Technologies and Marginalized Youth, IDC 2010.},
url1 = {Exploring everyday life in remote schools A large-scale study with cultural probes and affinity diagrams.pdf},
keywords = {Remote schools,affinity diagrams,children,cultural probes,ethnography,human-computer interaction},
mendeley-tags = {children,ethnography,human-computer interaction},
title = {{Exploring everyday life in remote schools: A large-scale study with cultural probes and affinity diagrams.}},
url2 = {http://www.cs.uiowa.edu/~hourcade/idc2010-myw/spiridonidou.pdf},
year = {2010}
}
@incollection{Chorianopoulos2010,
abstract = {This chapter describes the design and development of an interactive video installation that allows participants to explore a map narrative, and engage in group interactions through a shared screen. For this purpose, several layers of cartographic information were employed in a computer application, which was programmed with motion-tracking libraries in the open source tool processing. The interactive video installation has been chosen as a medium to achieve the following aims: (1) The visualization of urban-conflict as an interactive map narrative, and (2) the encouragement of social encounters through a shared screen. The development process begins with the design of interaction between the system and the participants, as well as between the participants themselves. Then we map the interaction design concepts into multimedia and architectural design. Finally, we provide a discussion on the creative process and the collaboration between different disciplines, such as architecture, urban planning, cartography, computer engineering, and media studies.},
author = {Chorianopoulos, Konstantinos and Rieniets, T},
booktitle = {Shared Encounters},
chapter = {5},
edition = {1},
url1 = {Shared-Screen Interaction Engaging Groups in Map-Mediated Nonverbal Communication.pdf},
keywords = {architectural space,architecture,collaboration,creativity,human-computer interaction,installation,multimedia,processing,surface,ubiquitous computing},
mendeley-tags = {human-computer interaction,multimedia,surface,ubiquitous computing},
pages = {81--98},
publisher = {Springer},
title = {{Shared-Screen Interaction: Engaging Groups in Map-Mediated Nonverbal Communication}},
url2 = {http://www.springerlink.com/content/u657l6240x2058k2/},
year = {2010}
}
@article{Koutsourelakis2010a,
abstract = {Mobile phones have become a ubiquitous information and telecommunication terminal used by diverse age groups. Despite research findings that indicate the special needs and skills of senior citizens, contemporary handsets offer limited consideration for them. We investigated whether typical mobile phone icons are suitable for older users, as measured through unaided icon comprehension. For this purpose, we studied 38 users and evaluated 25 icons, which we captured from five different handsets. It was found that there are significant differences in icon comprehension performance between older and younger mobile phone users. We conclude that designers of mobile phone icons have to regard older user groups differently and we describe the qualities of icons suitable to each one of the age groups. Finally, we highlight the need for additional similar research in different ethnic and cultural groups.},
author = {Koutsourelakis, C and Chorianopoulos, Konstantinos},
url1 = {Icons in mobile phones Comprehensibility differences between older and younger users.pdf},
journal = {Information Design Journal},
keywords = {age,human-computer interaction,icon,mobile phone,multimedia,recognition,ubiquitous computing,usability,user study},
mendeley-tags = {human-computer interaction,multimedia,ubiquitous computing},
number = {1},
pages = {22--35},
title = {{Icons in mobile phones Comprehensibility differences between older and younger users}},
url2 = {http://dx.doi.org/10.1075/idj.18.1.03cho},
volume = {18},
year = {2010}
}
@book{Willis2009,
abstract = {Every day we share encounters with others as we inhabit the space around us. In offering insights and knowledge on this increasingly important topic, this book introduces a range of empirical and theoretical approaches to the study of shared encounters. It highlights the multifaceted nature of collective experience and provides a deeper understanding of the nature and value of shared encounters in everyday life.Divided into four sections, each section comprises a set of chapters on a different topic and is introduced by a key author in the field who provides an overview of the content. The book itself is introduced by Paul Dourish, who sets the theme of shared encounters in the context of technological and social change over the last fifteen years. The four sections that follow consider the characteristics of shared encounters and describe how they can be supported in different settings: the first section, introduced by Barry Brown, looks at shared experiences. George Roussos, in the second section, presents playful encounters. Malcolm McCulloch introduces the section on spatial settings and ' last but not least ' Elizabeth Churchill previews the topic of social glue. The individual chapters that accompany each part offer particular perspectives on the main topic and provide detailed insights from the author's own research background. A valuable reference for anyone designing ubiquitous media, mobile social software and LBS applications, this volume will also be useful to researchers, students and practitioners in fields ranging from computer science to urban studies.},
editor = {Willis, Katharine S. and Roussos, George and Chorianopoulos, Konstantinos and Struppek, Mirjam},
isbn = {1848827261, 9781848827264},
keywords = {book},
mendeley-tags = {book},
month = dec,
pages = {311},
publisher = {Springer},
title = {{Shared Encounters}},
url2 = {http://books.google.com/books?id=qKKFT9nIPX8C\&pgis=1 http://www.springerlink.com/content/978-1-84882-726-4 http://portal.acm.org/citation.cfm?id=1708075},
year = {2010}
}
@inproceedings{Chorianopoulos2010c,
abstract = {Cultural probes have emerged as an effective user requirements capturing toolset for sensitive environments, such as domestic and educational settings. Previous efforts with cultural probes have been done on a small scale with no more than 20 users and have mostly considered urban environments. In contrast, we have collected cultural probes from more than ten remote schools and involved more than 100 students and teachers. We have found that some of the original analog probes might be already outdated in the face of contemporary digital tools and technologies, even in places that have remained greatly unaffected by modern life. The results of this study provide a framework for employing, administering, and analyzing cultural probes in longitudinal studies of remote places.},
address = {Corinth},
author = {Chorianopoulos, Konstantinos and Polymeris, Gerasimos},
booktitle = {7th Pan-Hellenic Conference with International Participation «ICT in Education»},
editor = {Jimoyiannis, A.},
url1 = {A case study of the deployment of cultural probes in remote schools.pdf},
keywords = {children,computer education,cultural probes,ethnography,isolated,remote schools},
mendeley-tags = {children,computer education,cultural probes,ethnography},
pages = {185--188},
publisher = {University of Peloponnese, Korinthos, Greece, 23-26 September 2010},
title = {{A case study of the deployment of cultural probes in remote schools}},
url2 = {http://korinthos.uop.gr/~hcicte10/proceedings/103.pdf},
year = {2010}
}
@inproceedings{Chorianopoulos2010d,
abstract = {In this paper, we explore the design of a seamless broadcast communication system that brings together the distributed community of remote secondary education schools. In contrast to higher education, primary and secondary education establishments should remain distributed, in order to maintain a balance of urban and rural life in the developing and the developed world. We plan to deploy an ambient and social interactive TV platform (physical installation, authoring tools, interactive content) that supports social communication in a positive way. In particular, we present the physical design and the conceptual model of the system.},
address = {Rome},
author = {Chorianopoulos, Konstantinos and Tsaknaki, Vassiliki},
booktitle = {workshop Mind the Gap — Towards Seamless Remote Social Interaction (10th Advanced Visual Interafaces conference AVI 2010)},
editor = {Quinn, Kori Inkpen and Gross, Tom},
url1 = {CELL Connecting Everyday Life in an archipeLago.pdf},
keywords = {Interaction design,computer education,human-computer interaction,multimedia,remote schools,social connectedness,ubiquitous computing},
mendeley-tags = {computer education,human-computer interaction,multimedia,ubiquitous computing},
title = {{CELL: Connecting Everyday Life in an archipeLago}},
year = {2010}
}
@article{Yu2010,
abstract = {The rapid development of digital media technologies enables the emergence of novel media content types for eCommerce, eEducation, and digital entertainment. On the other hand, the advances in communication and micro-electronics have led to a transition from traditional personal computer-centric to more intuitive human-centric information access modes and the embedment of computer systems throughout the natural environment. This type of computation is generally known as Pervasive or Ubiquitous Computing. It can also be referred to as ambient intelligence, or talking about media environments as ambient media. It allows a person to use a variety of devices and sensor networks seamlessly embedded throughout our daily life, such as personal digital assistant (PDA), smart electronics, sensors, as well as personal computer, to access those media contents. The combination of these two trends (emergence of media and pervasive computing) holds the potential of providing a user with seamless and ubiquitous access to rich and dynamic mul- timedia resources from anywhere and anytime.},
author = {Yu, Zhiwen and Lugmayr, Artur and Chorianopoulos, Konstantinos and Mei, Tao},
doi = {10.1007/s00530-010-0198-5},
url1 = {Introduction to the special issue on multimedia intelligent services and technologies.pdf},
issn = {0942-4962},
journal = {Multimedia Systems},
keywords = {editorial,multimedia},
mendeley-tags = {editorial,multimedia},
month = jun,
number = {4-5},
pages = {215--217},
publisher = {Springer Berlin / Heidelberg},
title = {{Introduction to the special issue on multimedia intelligent services and technologies}},
url2 = {http://www.springerlink.com/content/1438v73qh2725084/},
volume = {16},
year = {2010}
}
@incollection{Chorianopoulos2010a,
abstract = {Mobile TVs have been available for many years, without ever becoming very popular. Moreover, the first wave of research has been mostly concerned with technology and standards, which are necessary to ensure interoperability and market acceptance. Although, there has been a significant body of computer-supported co-operative work (CSCW) and mobile human–computer interaction (HCI) research findings, there is limited investigation in the context of leisure activities, such as TV. In this article, we propose three concepts that drive the main paths for research and practice in mobile and social TV: (1) Mobile TV as a content format, (2) Mobile TV as user behavior, and (3) Mobile TV as interaction terminal. Finally, we provide particular directions to be considered in further research in social and mobile TV.},
address = {London},
author = {Chorianopoulos, Konstantinos},
booktitle = {MOBILE TV: CUSTOMIZING CONTENT AND EXPERIENCE},
doi = {10.1007/978-1-84882-701-1},
editor = {Marcus, Aaron and Roib\'{a}s, Anxo Cereijo and Sala, Riccardo},
url1 = {Scenarios of Use for Sociable Mobile TV.pdf},
isbn = {978-1-84882-700-4},
keywords = {Interactive TV,computer mediated communication,human-computer interaction,mobile,mobile TV,multimedia,scenario,social aspects,survey},
mendeley-tags = {human-computer interaction,mobile,multimedia,scenario,survey},
pages = {243--254},
publisher = {Springer London},
series = {Human-Computer Interaction Series},
title = {{Scenarios of Use for Sociable Mobile TV}},
url2 = {http://www.springerlink.com/content/wj6238165759l0u2/},
year = {2010}
}
@article{Banakou2010,
abstract = {In this article, we investigate the effects of avatars appearance on user sociability in 3D virtual worlds. In particular, we study gender and appearance differences in social communication preferences and behavior in virtual public spaces. For this purpose, we have employed the virtual ethnographic method, which is an adaptation of traditional ethnography for the study of cyberspace. Although we only employed nine users who used four different avatars, we observed a cumulative of more than two hundreds social encounters. We found that users with more elaborate avatars had a higher success rate in their social encounters, than those users with the default avatars. Most notably, female users selected to speak with male avatars much more frequently, when using the attractive avatar, which indicates a self-confidence effect induced by the appearance of the personal avatar.},
author = {Banakou, Domna and Chorianopoulos, Konstantinos},
url1 = {The effects of Avatars Gender and Appearance on Social Behavior in Online 3D Virtual Worlds.pdf},
journal = {Journal of Virtual Worlds Research},
keywords = {Second Life,Virtual ethnography,avatar appearance,ethnography,human-computer interaction,multimedia,self-confidence,sociability,virtual world},
mendeley-tags = {ethnography,human-computer interaction,multimedia,self-confidence,virtual world},
number = {5},
title = {{The effects of Avatars Gender and Appearance on Social Behavior in Online 3D Virtual Worlds}},
url2 = {http://journals.tdl.org/jvwr/index.php/jvwr/article/view/779},
volume = {2},
year = {2010}
}
@article{Koutsourelakis2010,
abstract = {This article investigates whether the diversity of mobile phone icons has a negative effect on user perception, as measured through unaided icon recognition. We designed an experiment involving fifty-two young users and evaluated twenty-five icons from five different mobile phone handsets. It was found that there are significant differences between alternative icons used for the same mobile phone feature. Moreover, we found that original manufacturer icons performed better than those offered by the wireless operator. Simple metaphors from the real world and consistent visual depictions across different handsets performed best for mobile phone icons, while abstract concepts had the lowest recognition rates. Designers of mobile phone icons have to balance a trade-off between the need of the manufacturers and wireless operators to differentiate their offerings through branding, and the need of the consumers for a familiar visual language in mobile phone menus.},
author = {Koutsourelakis, C and Chorianopoulos, Konstantinos},
url1 = {Unaided Icon Recognition in Mobile Phones A Comparative Study with Young Users.pdf},
journal = {The Design Journal},
keywords = {human-computer interaction,icon,mobile phone,multimedia,recognition,ubiquitous computing,user study},
mendeley-tags = {human-computer interaction,multimedia,ubiquitous computing},
number = {3},
pages = {313--328},
title = {{Unaided Icon Recognition in Mobile Phones: A Comparative Study with Young Users}},
url2 = {http://dx.doi.org/10.2752/146069210X12766130824939},
volume = {13},
year = {2010}
}
@incollection{Lekakos2009,
abstract = {The ability to deliver personalized advertising messages has long been a major objective in marketing since it allows marketers to meet heterogeneous consumer needs and target their messages more effectively (Arens \& Bovee, 1994). However, traditional one-to-many marketing approaches applied in mass media suffer from their inability to meet this objective (Dibb, 1998; Hoffman \& Novak, 1997). In order to increase the efficiency of their strategy, marketers identify homogeneous groups of consumers (market segmentation) which they target according to their marketing objectives. Thus, market segmentation has become the most important marketing tool for targeting purposes (McBurnie \& Clutterbuck, 1998), also utilized in the TV advertising domain in conjunction with domain-specific features such as time zones and/or program typologies. However, this strategy has admittedly little to offer towards the ultimate goal of one-to-one communication, since the targeted unit is the segment rather than the individual consumer, and therefore individual needs cannot be satisfied. In the broadcasting television advertising domain, media coverage either exceeds the targeted market segment or leaves potential customers without exposure to the message, thus reducing its cost effectiveness (Belch \& Belch, 1995). At the same time, TV viewers have to deal with a vast amount of available advertising information. The issue of information overload, typical in information theoretic terms, is also experienced in the case of TV advertisements as advertising clutter, which has been identified as one of the significant factors associated with the negative attitude of viewers towards advertising and can have a negative impact on television advertisement recall or recognition (Mord \& Gilson, 1985). Relevant surveys reveal that 80\% of the viewers feel that there is “too much advertising in television” (Elliott \& Speck, 1998), while more than 75\% of consumers are not happy with the broadcasted advertisements (Hawkins, Best, \& Coney, 1998 ). Current target marketing methods are limited in their ability to efficiently target consumers at the individual level, particularly in mass media such as television. Thus, personalization of advertisements provides marketers with the opportunity to increase advertising effectiveness by targeting consumers who are most likely to respond positively to the advertising message. The present article investigates appropriate personalization methods for the domain of digital television advertisements by examining relevant methods utilized for personalized Web applications. In addition, it is concerned with the design of the interactive elements of a typical 30-second advertisement in support of the personalization process. The two objectives of this article are interrelated: the selection of a personalization technique affects the design of interactive advertisements since it indicates the type of interaction data that should be collected in order to enable personalization. The next section of this article opens up the discussion on personalization from a theoretical point of view and in the following section specific personalization techniques are compared. Next, the types of interaction data required to achieve personalization are discussed and the article concludes with further discussion and conclusions.},
author = {Lekakos, George and Chorianopoulos, Konstantinos},
booktitle = {Encyclopedia of Multimedia Technology and Neworking},
doi = {10.4018/978-1-60566-014-1.ch155},
edition = {3rd},
editor = {Pagani, Margherita},
url1 = {Personalized Advertising Methods in Digital Interactive Television.pdf},
isbn = {9781605660158},
keywords = {TV,interactive advertising,multimedia,personalized advertising,user modelling},
mendeley-tags = {interactive advertising,multimedia,user modelling},
pages = {1142--1147},
publisher = {IGI Press},
title = {{Personalized Advertising Methods in Digital Interactive Television}},
url2 = {http://www.igi-global.com/bookstore/Chapter.aspx?TitleId=17529},
year = {2009}
}
@inproceedings{Chorianopoulos2009a,
abstract = {In this paper, we provide a comprehensive overview of the state-of-the-art in a contemporary iTV research area: social and networked TV. In our approach, instead of considering research sub-topics that build upon particular disciplinary threads (e.g., usability, personalization, multimedia annotations), we take a multidisciplinary approach that builds upon findings in media studies, human-computer interaction and multimedia systems. Moreover, we downplay the importance of chatting over a distance in favor of non-verbal communication modalities. In contrast, we focus on Social TV practices and highlight the role of each viewer as a node that adds value to the TV network. Finally, we provide directions for further research in neglected topics, such as supporting collocated viewing, and sharing the TV experience in a seamless way.},
address = {Athens},
author = {Chorianopoulos, Konstantinos and Cesar, Pablo},
booktitle = {MCIS 2009.},
url1 = {Taking Social TV beyond chatting How the TV viewer adds value to the Network.pdf},
keywords = {Interactive TV,Internet TV,Networked TV,Social TV,computer mediated communication,human-computer interaction,multimedia},
mendeley-tags = {computer mediated communication,human-computer interaction,multimedia},
pages = {39},
title = {{Taking Social TV beyond chatting: How the TV viewer adds value to the Network}},
url2 = {http://aisel.aisnet.org/mcis2009/39/},
year = {2009}
}
@book{Cesar2009a,
abstract = {Interactive TV research spans across a rather diverse body of scientific subfields. Research articles have appeared in several venues, such as multimedia, HCI, CSCW, UIST, user modeling, media and communication sciences. In this study, we explore the state-of-the-art and consider two basic issues: What is interactive TV research? Can it help us reinvent the practices of authoring, delivering, and watching TV? For this purpose, we have reviewed the research literature, as well as the industrial developments and identified three concepts that provide a high-level taxonomy of interactive TV research: (1) content editing, (2) content sharing, and (3) content control. We propose this simple taxonomy (edit-share-control) as an evolutionary step over the established hierarchical produce-deliver-consume paradigm. Moreover, we demonstrate how each disciplinary effort has contributed to and why the full potential of interactive TV has not yet been fulfilled. Finally, we describe how interdisciplinary approaches could provide solutions to some notable contemporary research issues.},
author = {Cesar, Pablo and Chorianopoulos, Konstantinos},
booktitle = {Foundations and Trends® in Human-Computer Interaction},
doi = {10.1561/1100000008},
url1 = {The Evolution of TV Systems, Content, and Users Toward Interactivity.pdf},
isbn = {978-1-60198-256-8},
issn = {1551-3955},
keywords = {book,human-computer interaction,interactive TV,multimedia,survey,ubiquitous computing},
mendeley-tags = {book,human-computer interaction,multimedia,ubiquitous computing},
number = {4},
pages = {95},
title = {{The Evolution of TV Systems, Content, and Users Toward Interactivity}},
url2 = {http://www.nowpublishers.com/product.aspx?product=HCI\&doi=1100000008},
volume = {2},
year = {2009}
}
@book{Cesar2009,
abstract = {Television, since its invention, has been considered to be a social link between people. Continually enhanced by innovation, the next frontier for this technological phenomenon will focus on the actual natural capabilities of the medium. Social Interactive Television: Immersive Shared Experiences and Perspectives combines academic and industry research to provide the first publication of its kind to discuss the future emergence of experiences and services through interactive television. Concentrating on system and interaction design, as well as evaluation methods that focus on social experiences around interactive television, this book provides practitioners, academicians, researchers, and developers with the most relevant, current, and interesting findings on the topic.},
editor = {Cesar, Pablo and Geerts, David and Chorianopoulos, Konstantinos},
isbn = {1605666564},
keywords = {book,human-computer interaction,multimedia},
mendeley-tags = {book,human-computer interaction,multimedia},
pages = {362},
publisher = {IGI Global},
title = {{Social Interactive Television: Immersive Shared Experiences and Perspectives (Premier Reference Source)}},
url2 = {http://www.amazon.com/Social-Interactive-Television-Experiences-Perspectives/dp/1605666564},
year = {2009}
}
@inproceedings{Banakou2009,
abstract = {In this article, we investigate the effects of avatars appearance on user social behavior in online virtual worlds. In particular, we study appearance differences in social communication preferences and behavior in virtual public spaces. For this purpose, we have employed virtual ethnographic methods, which is an adaptation of traditional ethnography for the study of cyberspace. We employed nine users who used four different avatars and we observed a cumulative of more than two hundreds social encounters. The results of the study indicate that avatars appearance is an important factor in determining the social communication patterns between users in online 3D worlds. In particular, we found that users with more elaborate avatars had a higher success rate in their social encounters, than those users with the default avatars. The implications of this study raise several issues for the design of avatars, as well as for the study of social communication in online 3D worlds.},
author = {Banakou, Domna and Chorianopoulos, Konstantinos and Anagnostou, Kostas},
booktitle = {2009 13th Panhellenic Conference on Informatics},
doi = {10.1109/PCI.2009.9},
url1 = {Avatars Appearance and Social Behavior in Online Virtual Worlds.pdf},
isbn = {978-0-7695-3788-7},
keywords = {Second Life,Virtual ethnography,avatar appearance,ethnography,human-computer interaction,multimedia,self-confidence,sociability,virtual world},
mendeley-tags = {ethnography,human-computer interaction,multimedia,self-confidence,virtual world},
month = sep,
pages = {207--211},
publisher = {IEEE},
title = {{Avatars Appearance and Social Behavior in Online Virtual Worlds}},
url2 = {http://www.computer.org/portal/web/csdl/doi/10.1109/PCI.2009.9},
year = {2009}
}
@inproceedings{Chorianopoulos2009,
abstract = {In this article, we explore the methodological aspects for the longitudinal evaluation of a mass communication system that brings together a physically distributed educational community. There is a significant body of related research, but no integrated approach. In particular, previous academic research has not been evaluated with casual users in public spaces for prolonged periods of time. As a matter of fact, the most interesting effects of distance communication systems on everyday life, such as community identity, community awareness, and civic participation have not been documented. For this purpose, we plan to deploy an ambient and social interactive TV platform that supports social communication between remote and isolated schools. Here, we describe tools and techniques for a systematic longitudinal evaluation of the social effects of the media communication system on an educational setting.},
address = {Athens},
author = {Chorianopoulos, Konstantinos},
booktitle = {5th International Conference on Open and Distance Learning (ICODL)},
url1 = {Evaluating the social effects of distant education beyond the desktop computer.pdf},
keywords = {Children,computer education,computer mediated communication,human-computer interaction,installation,longitudinal,multimedia,remote schools,sustainability,ubiquitous computing,well being},
mendeley-tags = {computer education,computer mediated communication,human-computer interaction,installation,multimedia,ubiquitous computing},
pages = {117--121},
publisher = {Hellenic Open University Press},
title = {{Evaluating the social effects of distant education beyond the desktop computer}},
year = {2009}
}
@article{Cesar2008,
author = {Cesar, Pablo and Bulterman, Dick C. A. and Chorianopoulos, Konstantinos and Jensen, Jens F.},
doi = {10.1007/s00530-008-0115-3},
url1 = {Multimedia systems, languages, and infrastructures for interactive television.pdf},
issn = {0942-4962},
journal = {Multimedia Systems},
keywords = {editorial,human-computer interaction,multimedia},
mendeley-tags = {human-computer interaction,multimedia},
month = mar,
number = {2},
pages = {71--72},
publisher = {Springer Berlin / Heidelberg},
title = {{Multimedia systems, languages, and infrastructures for interactive television}},
url2 = {http://www.springerlink.com/content/n3333760t1510081/},
volume = {14},
year = {2008}
}
@book{Eckardt2008,
abstract = {MEDIACITY – Situations, Practices and Encounters investigates how the social settings and spaces of the city are created, experienced and practiced through the use and presence of new media. It takes the position that new media enables different settings, practices and behaviours to occur in urban space. Contributions from academics, practitioners and activists from disciplines such as Media Studies, Architecture, Urban Studies, Cultural and Urban Geography and Sociology present a critical reflection on the processes, methods and impacts of technologies in urban space.},
editor = {Eckardt, Frank and Geelhaar, Jens and Colini, Laura and Willis, Katharine S. and Chorianopoulos, Konstantinos and Hennig, Ralf},
isbn = {3865961827},
keywords = {architecture,book,media studies,urban studies},
mendeley-tags = {architecture,media studies,urban studies},
pages = {439},
publisher = {Frank \& Timme GmbH},
title = {{MEDIACITY. Situations, Practices and Encounters}},
url2 = {http://www.amazon.com/MEDIACITY-Situations-Practices-Encounters-Eckardt/dp/3865961827},
year = {2008}
}
@article{Chorianopoulos2008a,
abstract = {Interactive Television (ITV) applications gratify entertainment needs and leisure activities in a relaxed domestic context. Then, the mentality of efficiency and task completion implied by many user interface heuristics may not be suitable for design and expert evaluation of ITV. In line with the contemporary movement towards the design of the user experience of computing systems, a set of design principles for ITV applications has been developed. Instead of information technology, the field of communication science was explored, which has accumulated an extensive theory of TV usage and viewer behavior. For the empirical validation, the principles were employed in the design of an interactive music TV application. The results suggest that a small set of generic principles could support the systematic design of ITV applications and produce a design rationale that is traceable and comparable to alternative solutions, during the process of early product development. In addition, the principles could be refined into specific guidelines and further employed to support expert evaluation techniques.},
author = {Chorianopoulos, Konstantinos},
doi = {10.1080/10447310802205750},
url1 = {User Interface Design Principles for Interactive Television Applications.pdf},
issn = {1044-7318},
journal = {International Journal of Human-Computer Interaction},
keywords = {design principles,human-computer interaction,interactive TV,multimedia,usability},
mendeley-tags = {human-computer interaction,multimedia},
month = aug,
number = {6},
pages = {556--573},
publisher = {Taylor \& Francis},
title = {{User Interface Design Principles for Interactive Television Applications}},
url2 = {http://www.informaworld.com/10.1080/10447310802205750},
volume = {24},
year = {2008}
}
@inproceedings{Riecke:2008:IDT:1424984.1425028,
abstract = {The aim of this work is to study the usability of voting on music TV channels. We asked subjects to perform a voting-task on two different music TV shows. The results indicate, that 1) there are small differences in acceptance and understanding of the voting-instructions between users and non-users, 2) the mobile phone is a familiar and the most preferred voting-device and 3) sociability features is a way to support the pricing model of voting services for entertainment applications in TV.},
address = {Berlin, Heidelberg},
author = {Riecke, Ralph and Juers, Alex and Chorianopoulos, Konstantinos},
booktitle = {Proceedings of the 6th European conference on Changing Television Environments},
doi = {10.1007/978-3-540-69478-6},
editor = {Tscheligi, Manfred and Obrist, Marianna and Lugmayr, Artur},
url1 = {Interaction Design in Television Voting A Usability Study on Music TV and Input Devices.pdf},
isbn = {978-3-540-69477-9},
issn = {0302-9743},
keywords = {Usability,human-computer interaction,interactive TV,media studies,mobile phone,music TV,voting},
mendeley-tags = {human-computer interaction,media studies},
pages = {268--272},
publisher = {Springer Berlin Heidelberg},
series = {Lecture Notes in Computer Science},
title = {{Interaction Design in Television Voting: A Usability Study on Music TV and Input Devices}},
url2 = {http://dx.doi.org/10.1007/978-3-540-69478-6\_36},
volume = {5066},
year = {2008}
}
@inproceedings{Cesar2008b,
abstract = {Interactive TV research encompasses a rather diverse body of work (e.g. multimedia, HCI, CSCW, UIST, user modeling, media studies) that has accumulated over the past 20 years. In this article, we highlight the state-of-the-art and consider two basic issues: What is interactive TV research? Can it help us reinvent the practices of creating, sharing and watching TV? We survey the literature and identify three concepts that have been inherent in interactive TV research: 1) interactive TV as content creation, 2) interactive TV as a content and experience sharing process, and 3) interactive TV as control of audiovisual content. We propose this simple taxonomy (create-share-control) as an evolutionary step over the traditional hierarchical produce-distribute-consume paradigm. Moreover, we highlight the importance of sociability in all phases of the create-share-control model.},
address = {New York, New York, USA},
author = {Cesar, Pablo and Chorianopoulos, Konstantinos},
booktitle = {Proceeding of the 1st international conference on Designing interactive user experiences for TV and video - uxtv '08},
doi = {10.1145/1453805.1453830},
url1 = {Interactivity and user participation in the television lifecycle.pdf},
isbn = {9781605581002},
keywords = {human-computer interaction,interactive television,interactivity,multimedia,research survey,social tv,taxonomy,user participation},
mendeley-tags = {human-computer interaction,multimedia},
month = oct,
pages = {125--128},
publisher = {ACM Press},
title = {{Interactivity and user participation in the television lifecycle}},
url2 = {http://portal.acm.org/citation.cfm?id=1453805.1453830},
year = {2008}
}
@incollection{Chorianopoulos2008b,
abstract = {In this article, we explore the methodological aspects for the longitudinal evaluation of a mass communication system that brings together a physically distributed educational community. There is a significant body of related research, but no integrated approach. In the 70’s and 80’s, early video-art installations have explored the links between television, architectural space and community identity. During the 90’s and onwards, the artistic inspiration has caught on with research labs, which developed several distant communication systems. Nevertheless, previous academic research has not been evaluated with casual users in public spaces for prolonged periods of time. As a matter of fact, the most interesting effects of distance communication systems on everyday life, such as community identity, community awareness, and civic participation have not been documented. We plan to deploy an ambient and social interactive TV platform that supports social communication in a positive way. In particular, we describe materials, tools and techniques for a systematic longitudinal evaluation of the social effects of the media communication system on an educational setting. Furthermore, we frame this research program in the wider context of media and architecture academic enquiry.},
address = {Berlin},
author = {Chorianopoulos, Konstantinos},
booktitle = {Mediacity: Situations, Practices, and Encounters.},
edition = {Frank \& Ti},
editor = {Eckardt, Frank},
url1 = {Connecting remote educational spaces with mediated presence.pdf},
keywords = {architectural space,community,computer education,computer mediated communication,creativity,installation,media studies,sociability},
mendeley-tags = {community,computer education,computer mediated communication},
pages = {227--244},
title = {{Connecting remote educational spaces with mediated presence}},
year = {2008}
}
@article{Chorianopoulos2008,
abstract = {Previous research on the social impact of communication technologies has followed two distinct directions and has considered independently either the interpersonal communication or the mass communication. In this context, the human–computer interaction aspects of integrated media and social communication are examined. The design of “Social TV” systems that support interpersonal communication, which is motivated by mass media consumption and which takes place within colocated groups or over distance, is explored. In terms of the temporal dimension, Social TV might be synchronous, which happens in real time, or asynchronous, which happens with a time difference. This article provides an overview of research findings and outlines evaluation methods and user requirements for usability and sociability in interactive TV.},
author = {Chorianopoulos, Konstantinos and Lekakos, George},
doi = {10.1080/10447310701821574},
url1 = {Introduction to Social TV Enhancing the Shared Experience with Interactive TV.pdf},
issn = {1044-7318},
journal = {International Journal of Human-Computer Interaction},
keywords = {Social TV,computer mediated communication,human-computer interaction,interactive TV,multimedia,survey,ubiquitous computing},
mendeley-tags = {computer mediated communication,human-computer interaction,multimedia,ubiquitous computing},
month = feb,
number = {2},
pages = {113--120},
publisher = {Taylor \& Francis},
title = {{Introduction to Social TV: Enhancing the Shared Experience with Interactive TV}},
url2 = {http://www.informaworld.com/10.1080/10447310701821574},
volume = {24},
year = {2008}
}
@inproceedings{Oumard:2008:CPS:1413634.1413664,
abstract = {The focus of this article is the link between video sharing and interpersonal communication on the internet. Previous works on social television systems belong to two categories: 1) studies on how collocated groups of viewers socialize while watching TV, and 2) studies on novel Social TV applications (e.g. experimental set-ups) and devices (e.g. ambient displays) that provide technological support for TV sociability over a distance. The main shortcoming of those studies is that they have not considered the dominant contemporary method of Social TV. Early adopters of technology have been watching and sharing video online. We employed cultural probes in order to gain in-depth information about the social aspect of video sharing on the internet. Our sample consisted of six heavy users of internet video, watching an average of at least one hour of internet video a day. In particular, we explored how they are integrating video into their daily social communication practices. We found that internet video is shared and discussed with distant friends. Moreover, the results of the study indicate several opportunities and threats for the development of integrated mass and interpersonal communication applications and services.},
address = {New York, New York, USA},
author = {Oumard, Marieke and Mirza, Diana and Kroy, Juliane and Chorianopoulos, Konstantinos},
booktitle = {Proceedings of the 3rd international conference on Digital Interactive Media in Entertainment and Arts - DIMEA '08},
doi = {10.1145/1413634.1413664},
url1 = {A cultural probes study on video sharing and social communication on the internet.pdf},
isbn = {9781605582481},
keywords = {computer mediated communication,cultural probes,entertainment,ethnography,human-computer interaction,internet video,multimedia,online communication,user study},
mendeley-tags = {computer mediated communication,entertainment,ethnography,human-computer interaction,multimedia},
pages = {142--148},
publisher = {ACM Press},
series = {DIMEA '08},
title = {{A cultural probes study on video sharing and social communication on the internet}},
url2 = {http://doi.acm.org/10.1145/1413634.1413664},
year = {2008}
}
@article{Chorianopoulos2007c,
abstract = {The introduction of mobile and broadband networks in complement to the existing satellite, cable, and terrestrial platforms, opens new opportunities for interactive TV (ITV) applications. In addition, the widespread adoption of multimedia computing has enabled the processing of TV content on personal devices such as mobile phones and PCs. The above developments raise novel issues and require the adoption of new multimedia standards and application frameworks. In particular, the explosion in the amount of available TV channels over digital television platforms (broadcast or internet protocol) makes searching and locating interesting content a cumbersome task. In this context, personalization research is concerned with the adaptation of content (e.g. movies, news, advertisements). Personalization is achieved with the employment of algorithms and data collection schemes that predict and recommend to television viewers content that match their interests. In addition, the distribution of TV content to mobile devices over broadband wireless raises the issue of video quality. Video quality depends on many aspects of the video encoding systems, such as bit rate and algorithms that model human perception of video on small screens. In this article, we examine contemporary research in personalized and mobile digital TV applications. Moreover, we present a critical survey of the most prominent research and provide directions for further research in personalized and mobile digital TV (DTV) applications.},
author = {Chorianopoulos, Konstantinos},
doi = {10.1007/s11042-006-0081-8},
url1 = {Personalized and mobile digital TV applications.pdf},
issn = {1380-7501},
journal = {Multimedia Tools and Applications},
keywords = {DigitalTV,InteractiveTV,MobileTV,Personalization,multimedia,ubiquitous computing},
mendeley-tags = {multimedia,ubiquitous computing},
month = jan,
number = {1-2},
pages = {1--10},
publisher = {Springer Netherlands},
title = {{Personalized and mobile digital TV applications}},
url2 = {http://www.springerlink.com/content/7878817pj6106hx1/},
volume = {36},
year = {2008}
}
@article{Cesar2008a,
abstract = {At first glance, the notion of social interactive television seems to be a tautology. Television watching has always been a social activity. People watch television together in their living rooms, and outside their homes they talk about last night's football match; and even call each other to recommend an interesting program. Unfortunately, until recently, research on social interactive television has been scarce. One limiting factor for the development of innovative services for the home is the interactive technology behind user interaction, which was limited to the remote control. Fortunately, a number of studies concentrate on extending interactive methods, for example by using contextual information. This article reviews the state of the art in these two directions: the social aspects of television and user interaction. We conclude with a research agenda for further research, which might transform current interactive television services into shared experiences.},
author = {Cesar, Pablo and Chorianopoulos, Konstantinos and Jensen, Jens F.},
doi = {10.1145/1350843.1350847},
url1 = {Social television and user interaction.pdf},
issn = {15443574},
journal = {Computers in Entertainment},
keywords = {human-computer interaction,interactive digital television,multimedia,set-top box,social communications,social interactive television,user interaction},
mendeley-tags = {human-computer interaction,multimedia},
month = may,
number = {1},
pages = {1},
title = {{Social television and user interaction}},
url2 = {http://portal.acm.org/citation.cfm?id=1350843.1350847},
volume = {6},
year = {2008}
}
@article{Chorianopoulos:2007:LPI:1279540.1279544,
abstract = {Despite the criticism concerning the value of TV content, research reveals several worthwhile aspects -- one of them is the opportunity to learn. In this article we explore the characteristics of interactive TV applications that facilitate education and interactive entertainment. In doing so we analyze research methods and empirical results from experimental and field studies. The findings suggest that interactive TV applications provide support for education and entertainment for children and young people, as well as continuous education for all. In particular, interactive TV is especially suitable for (1) informal learning and (2) for engaging and motivating its audience. We conclude with an agenda for future interactive TV research in entertainment and education.},
address = {New York},
author = {Chorianopoulos, Konstantinos and Lekakos, George},
doi = {10.1145/1279540.1279544},
url1 = {Learn and play with interactive TV.pdf},
issn = {15443574},
journal = {Computers in Entertainment},
keywords = {computer education,entertainment,human-computer interaction,interactive TV,interactive television,multimedia,set-top box,study,survey,user interface},
mendeley-tags = {computer education,entertainment,human-computer interaction,multimedia,survey},
month = apr,
number = {2},
pages = {4},
publisher = {ACM},
title = {{Learn and play with interactive TV}},
url2 = {http://doi.acm.org/10.1145/1279540.1279544},
volume = {5},
year = {2007}
}
@inproceedings{Chorianopoulos2007e,
abstract = {In this research program, we explore the relationship between television use, architectural space, and community identity. In particular, we discuss the conceptual design of a system that brings together the physically distributed academic community (students, academic and administrative staff) of the University of the Aegean. We propose the employment of networked interactive video installations in everyday places (e.g. cafeteria, halls) of the university. In this paper, we explore previous related research and we discuss design issues and approaches for the case of the University of the Aegean.},
address = {Ulm},
author = {Chorianopoulos, Konstantinos},
booktitle = {3rd IET International Conference on Intelligent Environments, 2007. IE 07.},
url1 = {Ambient and social TV a conceptual design that connects everyday life in a sporadic community.pdf},
issn = {0537-9989},
keywords = {Locative media,ambient TV,awareness,community,human-computer interaction,multimedia,presence,shared experience,social TV},
mendeley-tags = {community,human-computer interaction,multimedia},
pages = {585--588},
shorttitle = {Intelligent Environments, 2007. IE 07. 3rd IET Int},
title = {{Ambient and social TV: a conceptual design that connects everyday life in a sporadic community}},
year = {2007}
}
@article{Chorianopoulos:2007:CTO:1232050.1232055,
abstract = {Despite the progressive switch to digital TV, there has not been any significant change to the value chain of the TV industry. At the same time, the introduction of novel information and communication technologies, such as the digital video recorder (DVR) and efficient Peer-to-Peer (P2P) content distribution, have been regarded as a threat to the established broadcast business players. Previous research has described these threats and has suggested competitive strategies, but it has not investigated the opportunities. This work aims to identify a framework of new business models that take advantage of the networked DVR. For this purpose, we examined the TV literature from diverse academic disciplines, such as mass communication, computer engineering and advertising research. We have also collaborated with network and multimedia engineers, with broadcasters, and we examined novel interactive television (ITV) prototypes. The findings suggest that the networked DVR could be exploited to provide personalized channels and that the dynamic advertising insertion could be introduced as an effective advertising format. In the light of these findings, the TV industry should consider the pro-active adoption and facilitation of the networked DVR infrastructure.},
address = {Tarrytown},
author = {Chorianopoulos, Konstantinos and Spinellis, Diomidis},
doi = {10.1016/j.tele.2005.12.003},
url1 = {Coping with TiVo Opportunities of the networked digital video recorder.pdf},
issn = {07365853},
journal = {Telematics and Informatics},
keywords = {TV,TiVo,broadcast,business,business model,content management,digital interactive TV,media technology,software technology},
mendeley-tags = {TV,broadcast,business,media technology,software technology},
month = feb,
number = {1},
pages = {48--58},
publisher = {Pergamon Press, Inc.},
title = {{Coping with TiVo: Opportunities of the networked digital video recorder}},
url2 = {http://dx.doi.org/10.1016/j.tele.2005.12.003},
volume = {24},
year = {2007}
}
@inproceedings{Chorianopoulos:2006:ITD:1783789.1783794,
abstract = {Television use does not require high skill or effort, which is ideal as a paradigm of use for ambient user interfaces. In this paper, universal access in ambient intelligence is modeled after the use of TV in everyday life. Instead of considering television only as a content medium and the focus of user activity, an alternative approach is to consider television use as a secondary function to other activities, such as socializing, domestic chores, leisure pursuits. For this purpose, the requirements for ambient user interactivity with TV are organized in a small set of design principles. The design principles have been selected, analyzed and synthesized from readings in previous works on media and ethnographic studies about television, and everyday life. It is suggested that universal access in ambient intelligence is promoted by considering design principles such as opportunistic interaction, user participation, group interactions, and multiple levels of attention to the user interface. Finally, the principles have been tested in the design of a user interface for interactive music television. This preliminary case suggests that the proposed principles facilitate the design of user interfaces that blend seamlessly with everyday life.},
address = {Berlin},
author = {Chorianopoulos, Konstantinos},
booktitle = {Proceedings of the 9th conference on User interfaces for all},
url1 = {Interactive TV design that blends seamlessly with everyday life.pdf},
isbn = {978-3-540-71024-0},
keywords = {ambient ITV,design principles,human-computer interaction,interactive TV,media studies,metaphors,multimedia,paradigm of use,ubiquitous computing},
mendeley-tags = {human-computer interaction,multimedia,ubiquitous computing},
pages = {43--57},
publisher = {Springer-Verlag},
series = {ERCIM'06},
title = {{Interactive TV design that blends seamlessly with everyday life}},
url2 = {http://www.springerlink.com/content/q45n0397l27m626l/},
year = {2007}
}
@book{Cesar2007,
abstract = {This book constitutes the refereed proceedings of the 5th European Conference on Interactive Television, EuroITV 2007, held in Amsterdam, The Netherlands in May 2007. The 24 revised full papers were carefully reviewed and selected from 80 submissions. The volume combines papers from academia and industry covering a wide range of areas such as media studies, audiovisual design, multimedia, human-computer interaction, and management. The papers are organized in topical sections on social TV systems, user studies, the future of TV, social TV evaluation, personalization, and mobile TV.},
booktitle = {5th European Conference on interactive video and television (EuroITV 2007)},
editor = {Cesar, Pablo and Chorianopoulos, Konstantinos and Jensen, Jens F.},
isbn = {354072558X},
keywords = {book,proceedings},
mendeley-tags = {book},
pages = {236},
publisher = {Springer},
title = {{Interactive TV: A Shared Experience}},
url2 = {http://www.springerlink.com/content/p55uq2648571/},
year = {2007}
}
@article{Chorianopoulos2007b,
abstract = {Interactive TV technology has been addressed in many previous works, but there is sparse research on the topic of interactive content broadcasting and how to support the production process. In this article, the interactive broadcasting process is broadly defined to include studio technology and digital TV applications at consumer set-top boxes. In particular, augmented reality studio technology employs smart-projectors as light sources and blends real scenes with interactive computer graphics that are controlled at end-user terminals. Moreover, TV producer-friendly multimedia authoring tools empower the development of novel TV formats. Finally, the support for user-contributed content raises the potential to revolutionize the hierarchical TV production process, by introducing the viewer as part of content delivery chain.},
author = {Chorianopoulos, Konstantinos and Lekakos, George},
url1 = {Methods and Applications in Interactive Broadcasting.pdf},
journal = {Journal of Virtual Reality and Broadcasting},
keywords = {Broadcasting,Interactive TV,broadcast,editorial,iTV,multimedia,survey},
mendeley-tags = {broadcast,editorial,multimedia,survey},
pages = {8},
title = {{Methods and Applications in Interactive Broadcasting}},
url2 = {http://www.jvrb.org/4.2007/1093/},
volume = {4},
year = {2007}
}
@inproceedings{Willis:2007:SE:1240866.1241101,
abstract = {Our everyday lives are characterised by encounters, some are fleeting and ephemeral and others are more enduring and meaningful exchanges. Shared encounters are the glue of social networks and have a socializing effect in terms of mutual understanding, empathy, respect and thus tolerance towards others. The quality and characteristics of such encounters are affected by the setting, or situation in which they occur. In a world shaped by communication technologies, non-place-based networks often coexist alongside to the traditional local face-to-face social networks. As these multiple and distinct on and off-line communities tend to carry out their activities in more and more distinct and sophisticated spaces, a lack of coherency and fragmentation emerges in the sense of a shared space of community. Open public space with its streets, parks and squares plays an important role in providing space for shared encounters among and between these coexisting networks. Mobile and ubiquitous technologies enable social encounters located in public space, albeit not confined to fixed settings, whilst also offering sharing of experiences from non-place based networks. We will look at how to create or support the conditions for meaningful and persisting shared encounters. In particular we propose to explore how technologies can be appropriated for shared interactions that can occur spontaneously and playfully and in doing so re-inhabit and connect place-based social networks.},
address = {New York, New York, USA},
author = {Willis, Katharine S. and Chorianopoulos, Konstantinos and Struppek, Mirjam and Roussos, George},
booktitle = {CHI '07 extended abstracts on Human factors in computing systems - CHI '07},
doi = {10.1145/1240866.1241101},
url1 = {Shared encounters workshop.pdf},
isbn = {9781595936424},
keywords = {community,encounter,human-computer interaction,interaction,mobile and ubiquitous technologies,shared,situated,space,ubiquitous computing},
mendeley-tags = {community,human-computer interaction,ubiquitous computing},
pages = {2881--2884},
publisher = {ACM Press},
series = {CHI '07},
title = {{Shared encounters}},
url2 = {http://doi.acm.org/10.1145/1240866.1241101},
year = {2007}
}
@book{LekakosG.2007,
abstract = {This book constitutes the refereed proceedings of the 5th European Conference on Interactive Television, EuroITV 2007, held in Amsterdam, The Netherlands, May 2007. The volume covers a wide range of areas such as media studies, audiovisual design, multimedia, HCI, and management. The papers are organized in topical sections on social TV systems, user studies, the future of TV, social TV evaluation, personalization, and mobile TV.},
editor = {Lekakos, George and Chorianopoulos, Konstantinos and and Doukidis, George},
isbn = {1599043610},
keywords = {book,proceedings},
mendeley-tags = {proceedings},
pages = {355},
publisher = {IGI Publishing},
title = {{Interactive Digital Television: Technologies and Applications}},
url2 = {http://portal.acm.org/citation.cfm?id=1535380},
year = {2007}
}
@inproceedings{Chorianopoulos2007a,
abstract = {This article describes an interactive video installation that was developed to inform and engage people about one of the most upsetting geopolitical issues of our time: The Israeli-Palestinian conflict. Several layers of maps information have been employed into a computer application, which was programmed with the open source tool Processing. The video installation was chosen as a medium, to achieve the following aims: 1) The visualization and communication of the Israeli-Palestinian conflict, and 2) the application of ambient intelligence technology into artistic works. In this article, we present the requirements, concepts and design decisions for an interactive video installation that has been tested in the lab. Moreover, we provide a reflection on the creative process and the collaboration between different disciplines, such as architecture, urban planning, cartography, computer engineering and media studies. Finally, we outline the plan to evaluate the performance of the system and the impact of the interactive video installation during an exhibition.},
author = {Chorianopoulos, Konstantinos and Rieniets, T},
booktitle = {IET Conference Publications},
url1 = {City of collision an interactive video installation to inform and engage.pdf},
keywords = {Interaction design,Processing,architectural space,architecture,art,creativity,engagement,human-computer interaction,installation,multimedia,ubiquitous computing,urban conflict},
mendeley-tags = {art,human-computer interaction,multimedia,ubiquitous computing},
number = {CP531},
pages = {502 -- 509},
title = {{City of collision: an interactive video installation to inform and engage}},
url2 = {http://dx.doi.org/10.1049/cp:20070415},
volume = {2007},
year = {2007}
}
@article{Chorianopoulos2007,
abstract = {The technological difference between the broadcast and the telecommunications industries has imposed an artificial distinction between content distribution and interpersonal communication. As a result, content has to be distributed and consumed through broadband, unidirectional and inflexible TV channels, while interpersonal communication takes place over low-bandwidth bidirectional channels. The convergence of platforms offers many opportunities for integrated content and communication services, which we refer to as ‘content-enriched communication’.},
author = {Chorianopoulos, Konstantinos},
url1 = {Content-Enriched Communication-Supporting the Social Uses of TV.pdf},
journal = {COMMUNICATIONS NETWORK JOURNAL},
keywords = {Social TV,broadcast,computer mediated communication,convergence,interactive TV,multimedia,survey,telecommunication},
mendeley-tags = {computer mediated communication,multimedia},
number = {1},
pages = {23--30},
title = {{Content-Enriched Communication-Supporting the Social Uses of TV}},
volume = {6},
year = {2007}
}
@inproceedings{Cesar:2006:IDT:1180639.1180642,
abstract = {Interactive digital television is an emerging field with a high impact in our societies: it offers interactive services to the masses. This tutorial aims to establish a common framework by summarizing the most significant results in this multidisciplinary field. The review includes topics such as content distribution, system software of the receivers, and user interaction. In addition, we will discuss current commercial events such as the next generation of optical discs (e.g., blue-ray), BBC peer-to-peer service, and mobile television. Based on this discussion, we will formulate an agenda for further research. The agenda includes, for example, end-user enrichment of television content and social television. This half-day tutorial will provide the attendee a solid understanding of the technologies currently in use and an introduction of the open questions in the field.},
address = {New York, New York, USA},
author = {Cesar, Pablo and Chorianopoulos, Konstantinos},
booktitle = {Proceedings of the 14th annual ACM international conference on Multimedia - MULTIMEDIA '06},
doi = {10.1145/1180639.1180642},
url1 = {Interactive digital television and multimedia systems.pdf},
isbn = {1595934472},
keywords = {interactive digital television,multimedia,software architecture,tutorial,tutorial projects},
mendeley-tags = {multimedia,tutorial},
pages = {7},
publisher = {ACM Press},
series = {MULTIMEDIA '06},
title = {{Interactive digital television and multimedia systems}},
url2 = {http://doi.acm.org/10.1145/1180639.1180642},
year = {2006}
}
@inproceedings{Teran2006,
abstract = {In this paper, we present a series of methods developed by the artist, Michelle Teran, for raising awareness ofinvisible spaces created by public wireless communication technologies. These methods include public performance, w here participation is through a series of walks through the city, and workshops where participants engage in the design implications through a process oflocating, examining and documenting some ofthese invisible networks. Overall, we explore methods and strategies for engaging the public, how to create awareness ofthe limitations oftheir perception of communications technologies and techniques that facilitate the debate on the opportunities that these invisible yet rich in meaning invisible spaces might raise.},
author = {Teran, Michelle and Chorianopoulos, Konstantinos and Willis, Katharine S. and Colini, Laura},
booktitle = {Adjunct Proceedings of British Human Computer Interaction conference 2006, 11-15 September 2006, London.},
url1 = {Dousing for Dummies methods for raising public awareness of ambient communications.pdf},
keywords = {CCTV,WiFi,architecture,art,awareness,citizen science,community,creativity,invisible networks,privacy,ubiquitous computing,urban space},
mendeley-tags = {architecture,art,citizen science,community,creativity,ubiquitous computing},
pages = {1--3},
title = {{Dousing for Dummies : methods for raising public awareness of ambient communications}},
year = {2006}
}
@article{Chorianopoulos2006,
abstract = {Animated characters have been a popular research theme, but the respective desktop applications have not been well-received by end-users. The objective of this study was to evaluate the use of an animated character for presenting information and navigating music videos within an interactive television (ITV) application. Information was displayed over music video clips with two alternative user interfaces: 1) semi-transparent information overlays, 2) an animated character. For this purpose, the differences between ITV and desktop computing motivated the adaptation of the traditional usability evaluation techniques. The evaluation revealed that users reported higher affective quality with the animated character user interface. Although the success of animated characters in desktop productivity applications has been limited, there is growing evidence that animated characters might be viable in a domestic environment for leisure activities, such as interactive TV.},
author = {Chorianopoulos, Konstantinos},
url1 = {Animated Character Likeability Revisited The Case of Interactive TV.pdf},
journal = {Journal of Usability Studies},
keywords = {affective quality,agent,animated character,entertainment,human-computer interaction,interactive tv,multimedia,music video},
mendeley-tags = {entertainment,human-computer interaction,multimedia},
number = {4},
pages = {171--184},
title = {{Animated Character Likeability Revisited: The Case of Interactive TV}},
url2 = {http://www.usabilityprofessionals.org/upa\_publications/jus/2006\_august/chorianopoulos\_animated\_character\_likeability.html},
volume = {1},
year = {2006}
}
@article{Chorianopoulos2006a,
abstract = {A diverse user population employs interactive TV (ITV) applications in a leisure context for entertainment purposes. The traditional user interface (UI) evaluation paradigm involving efficiency and task completion may not be adequate for the assessment of such applications. In this paper, we argue that unless ITV applications are evaluated with consideration for the ordinary TV viewer, they are going to be appropriate only for the computer literate user, thus excluding the TV audience from easy access to information society services. The field of media studies has accumulated an extensive theory of TV and associated methods. We applied the corresponding findings in the domain of ITV to examine how universal access to ITV applications can be obtained. By combining these results with emerging affective quality theories for interactive products, we propose a UI evaluation framework for ITV applications.},
author = {Chorianopoulos, Konstantinos and Spinellis, Diomidis},
doi = {10.1007/s10209-006-0032-1},
url1 = {User interface evaluation of interactive TV a media studies perspective.pdf},
issn = {1615-5289},
journal = {Universal Access in the Information Society},
keywords = {Affective quality,Evaluation,Interactive television,Media studies,Methodology,User interface,affective,human-computer interaction,ubiquitous computing},
mendeley-tags = {affective,human-computer interaction,ubiquitous computing},
month = may,
number = {2},
pages = {209--218},
publisher = {Springer Berlin / Heidelberg},
title = {{User interface evaluation of interactive TV: a media studies perspective}},
url2 = {http://www.springerlink.com/content/a24626572258gp6p/},
volume = {5},
year = {2006}
}
@inproceedings{Chorianopoulos:2005:CMD:1114279.1114356,
abstract = {Digital music consumers have to choose between illegal file swapping services and online music stores. The latter impose various restrictions to the established music consumption behaviour, such as limitations on the number of devices and proprietary music formats. We describe a business model that is based on a liberal management of music rights, instead of the dominant restrictions of access. The proposed business model facilitates the free flow of music content between different client devices (PC, mobile phone, portable player) and between heterogeneous networks (Web, P2P, wireless, broadcast), but it controls the flow of rights for added value music bundles. The business model is presented over two stages of the customer activity cycle and along the revenue, process and technology elements.},
address = {Washington},
author = {Chorianopoulos, Konstantinos and Barria, J. and Regner, T. and Pitt, J.},
booktitle = {First International Conference on Automated Production of Cross Media Content for Multi-Channel Distribution (AXMEDIS'05)},
doi = {10.1109/AXMEDIS.2005.16},
url1 = {Cross Media Digital Rights Management for Online Music Stores.pdf},
isbn = {0-7695-2348-X},
keywords = {business,business model,copyright,cross-media,digital rights,media technology,mp3,music,social media},
mendeley-tags = {business,copyright,media technology,social media},
pages = {257--260},
publisher = {IEEE},
title = {{Cross Media Digital Rights Management for Online Music Stores}},
url2 = {http://portal.acm.org/citation.cfm?id=1114279.1114356},
year = {2005}
}
@article{Chorianopoulos2004a,
abstract = {Computer-mediated television brings new requirements for user interface design and evaluation, since interactive television applications are deployed in a relaxed domestic setting and aim to gratify the need for entertainment. Digital video recorders, the generation of custom computer graphics on each digital set-top box, and the introduction of new advertising formats are important issues for research and practice. We explore the employment of an animated character and the dynamic insertion of advertising in the design of an intuitive user interface for interactive music-video television. We found that the animated character and the skippable videoclip feature seamlessly enhanced consumer satisfaction, as shown by affective usability questionnaires.},
author = {Chorianopoulos, Konstantinos and Spinellis, Diomidis},
doi = {10.1145/1027154.1027177},
url1 = {Affective usability evaluation for an interactive music television channel.pdf},
issn = {1544-3574},
journal = {Comput. Entertain.},
keywords = {Interactive television,TiVo,advertising,affective,affective usability,animated character,entertainment,human-computer interaction,multimedia,music video,set-top box,ubiquitous computing,user interface},
mendeley-tags = {advertising,affective,entertainment,human-computer interaction,multimedia,ubiquitous computing},
month = jul,
number = {3},
pages = {14--14},
publisher = {ACM Press},
title = {{Affective usability evaluation for an interactive music television channel}},
type = {Journal article},
url2 = {http://portal.acm.org/citation.cfm?id=1027177},
volume = {2},
year = {2004}
}
@phdthesis{Chorianopoulos2004,
abstract = {This doctoral dissertation aims to investigate user interface (UI) design, implementation and evaluation for interactive television (ITV) applications. Computer mediated entertainment (e.g. video-games, digital music, DVD movies, ITV) has emerged as a major economic factor in the media industry, taking-up a large portion of consumer spending and leisure time. Advances in set-top box technology made possible the digital video recorder (DVR) and Internet connectivity, thus making the television interactive. The objective of the present work is to evaluate the established human-computer interaction (HCI) theory against the requirements of ITV applications. Previous HCI research about ITV focused only on the design of the electronic program guide (EPG) and did not consider the enhancement of the TV content. Furthermore, previous research approached ITV from a single perspective (e.g. computer engineering, advertising, communication) and it did not consider the conflicts of interest between the broadcasters and the consumers, between the developers and the producers, and more crucially, it did not consider the ITV user as a TV viewer. For this purpose, the established TV watching behavior is identified in other scientific disciplines, such as advertising and communication, and it is combined with the Information Technology (IT) usability mentality. The design methodology involves two phases. The objective of the first design phase is to formulate a small set of principal elements that are generic to the design of ITV UIs, such as Virtual Channel conceptual model, UI principles, UI development toolkit, prototyping platform, and affective usability evaluation framework. The objective of the second design phase is to employ the elements identified in the previous stage into the development of an ITV application. The ITV application was evaluated by consumers and addressed three contemporary UI issues: video skipping, animated character, and dynamic advertisement insertion. Overall, the methodology employed a holistic design approach for ITV applications, in which the UI model and the business model were systematically mapped to and validated through an ITV music application. In brief, it was found that the track-skipping UI seamlessly enhanced consumer entertainment. Moreover, it was found that an animated character is preferred, when compared with the traditional transparent box for the presentation of related information. Consumers evaluated the dynamic advertisement insertion positively, thus, opening-up many opportunities for novel advertising formats. The employment of the proposed HCI elements made the design and the development of the ITV application a straightforward process and produced an entertainment experience that was liked by the consumers. The results entail significant implications for the TV industry. ITV is currently perceived as a set of decorative elements, which do not provide any actual improvement of the existing TV content. On the other hand, video-skipping is a familiar functionality that should be exploited, instead of neglected due to the fear of cannibalizing the fixed advertising of the broadcast schedules. The dynamic advertisement insertion in the TV content stream offers a novel advertising format. Finally, there are opportunities for a new mediating role in the media industry that combines the available broadcast transmission with additional elements (Internet resources, computer generated graphics) for the provision of personalized virtual television channels.},
author = {Chorianopoulos, Konstantinos},
booktitle = {\{PhD\} Athens University of Economics and Business},
url1 = {Virtual television channels Conceptual model, user interface design and affective usability evaluation.pdf},
keywords = {advertising,affective,business model,design,human-computer interaction,interactive TV,methodology,multimedia,music,phd,thesis,ubiquitous computing,usability,virtual channel},
mendeley-tags = {advertising,human-computer interaction,multimedia,thesis,ubiquitous computing},
pages = {198},
school = {Athens University Economics and Business (AUEB)},
title = {{Virtual television channels: Conceptual model, user interface design and affective usability evaluation}},
type = {PhD},
url2 = {http://phdtheses.ekt.gr/eadd/handle/10442/17648},
year = {2004}
}
@article{Chorianopoulos2004b,
abstract = {We explore the generation of interactive computer graphics at digital set-top boxes in place of the fixed graphics that were embedded to the television video before the broadcast. This direction raises new requirements for user interface development, since the graphics are merged with video at each set-top box dynamically, without the traditional quality control from the television producers. Besides the technical issues, interactive computer graphics for television should be evaluated by television viewers. We employ an animated character in an interactive music television application that was evaluated by consumers, and was developed using the Virtual Channel Control Library, a custom high-level API, that was built using Microsoft Windows and TV technologies.},
author = {Chorianopoulos, Konstantinos and Spinellis, Diomidis},
doi = {10.1016/j.cag.2003.12.004},
url1 = {User interface development for interactive television extending a commercial DTV platform to the virtual channel API.pdf},
journal = {Computers \& Graphics},
keywords = {Animated character,Digitalset-top box,Music video clip,TiVo,User interface,interactive,interface,programming,toolkit,tv,user},
mendeley-tags = {interactive,interface,programming,toolkit,tv,user},
month = apr,
number = {2},
pages = {157--166},
title = {{User interface development for interactive television: extending a commercial DTV platform to the virtual channel API}},
type = {Journal article},
url2 = {http://dx.doi.org/10.1016/j.cag.2003.12.004},
volume = {28},
year = {2004}
}
@inproceedings{Livaditi2003,
abstract = {This paper uses the well-established ?uses and gratifications? theory in order to understand and categorize viewers? needs in the context of digital TV applications. The results of this analysis unveil that such needs can either be ritualized or instrumental. Furthermore, the uses and gratifications theory was applied in order to formulate a questionnaire to which 68 current users of digital TV responded. The results of this empirical study reveal that applications most suitable for the interactive television environment should aim at the gratification of ritualized needs, such as entertainment and communication. Therefore, applications that appeal to instrumental needs, such as information and transactions should be included as add-ons to entertainment and communication services. Finally, the implications of this analysis for the design of interactive television applications are exploited.},
author = {Livaditi, J. and Vassilopoulou, K. and Lougos, C. and Chorianopoulos, Konstantinos},
booktitle = {36th Annual Hawaii International Conference on System Sciences, 2003. Proceedings of the},
doi = {10.1109/HICSS.2003.1174237},
url1 = {Needs and gratifications for interactive TV implications for designers.pdf},
isbn = {0-7695-1874-5},
keywords = {broadcast,digital TV,interactive TV applications,media content,media studies,uses and gratifications theory},
mendeley-tags = {broadcast,digital TV,media studies},
month = jan,
pages = {9 pp.},
publisher = {IEEE},
title = {{Needs and gratifications for interactive TV implications for designers}},
url2 = {http://www.computer.org/portal/web/csdl/doi/10.1109/HICSS.2003.1174237},
year = {2003}
}
@inproceedings{Chorianopoulos2003,
abstract = {This research is based on the realization that the desktop computing paradigm is not appropriate for television, because it is adapted to fundamentally different user aspirations and activities. Instead, the virtual channel is a model that aids the organization and dynamic presentation of digital television programming from a combination of live broadcasts, prerecorded content and Internet resources at each set-top box. The goal is to design the respective framework of user interface patterns that consider the affective nature of television usability and facilitate the diversity of viewing situations.},
author = {Chorianopoulos, Konstantinos},
booktitle = {CHI '03 extended abstracts on Human factors in computing systems (CHI '03)},
doi = {10.1145/765891.765919},
url1 = {The digital set-top box as a virtual channel provider.pdf},
isbn = {1581136374},
keywords = {Digital television,affective,conceptual,design,human-computer interaction,interactive,interface,model,multimedia,tv,ubiquitous computing,usability,user,user interface},
mendeley-tags = {conceptual,design,human-computer interaction,interactive,interface,model,multimedia,tv,ubiquitous computing,user},
pages = {666--667},
publisher = {ACM Press},
title = {{The digital set-top box as a virtual channel provider}},
type = {Conference proceedings (article)},
url2 = {http://portal.acm.org/citation.cfm?id=765919},
year = {2003}
}
@inproceedings{Chorianopoulos2003a,
abstract = {The purpose of this paper is to present our experience from the design of a personalized television application, and the implications for the design of interactive television applications in general. Personalized advertising is a gentle introduction to interactive television applications through a push paradigm that is closer to the established patterns of television use. While personalization is a practice widely used on the Internet, applying personalization techniques over digital television infrastructures presents significant obstacles, which we address with explicit design moves},
address = {New York, New York, USA},
author = {Chorianopoulos, Konstantinos and Lekakos, George and Spinellis, Diomidis},
booktitle = {Proceedings of the 8th international conference on Intelligent user interfaces - IUI '03},
doi = {10.1145/604045.604083},
url1 = {Intelligent user interfaces in the living room.pdf},
isbn = {1581135866},
keywords = {Digital television,advertising,human-computer interaction,interactive,interface,personalization,tv,usability,user modelling},
mendeley-tags = {human-computer interaction,interactive,interface,personalization,tv,usability,user modelling},
pages = {230--232},
publisher = {ACM Press},
title = {{Intelligent user interfaces in the living room}},
type = {Conference proceedings (article)},
url2 = {http://portal.acm.org/citation.cfm?doid=604045.604083},
year = {2003}
}
@inproceedings{chorianopoulos02,
abstract = {Traditional human-computer interaction settings involve a task-oriented approach where the human interacts with an application to accomplish a particular goal. The emergence of media-rich computer-mediated leisure applications requires a fresh view of the current paradigms and a careful examination of how this change of perspective affects their relevance. This paper proposes a metaphor for accessing personalized television programming and suggests an approach for integrating the metaphor into the design of a television user interface. The proposed metaphor is tested in the design of a personalized advertising service. The results of the empirical research are discussed and the suitability of the metaphor for other television programs is examined.},
author = {Chorianopoulos, Konstantinos and Spinellis, Diomidis},
booktitle = {UNIVERSAL ACCESS THEORETICAL PERSPECTIVES, PRACTICE, AND EXPERIENCE},
editor = {Carbonelle, N. and Staphanidis, C.},
url1 = {A Metaphor for Personalized Television Programming.pdf},
keywords = {TV,advertising,broadcast,human-computer interaction,interactive,media technology,metaphor,personalization,universal access,usability},
mendeley-tags = {TV,advertising,broadcast,human-computer interaction,interactive,media technology},
pages = {187--194},
publisher = {Springer-Verlag},
title = {{A Metaphor for Personalized Television Programming}},
type = {Conference proceedings (article)},
url2 = {http://link.springer.de/link/service/series/0558/papers/2615/26150187.pdf},
year = {2003}
}
@inproceedings{Lekakos2001,
abstract = {The birth of the World Wide Web (WWW) in 1993, particularly its graphical user interface, offered marketers opportunities that were previously unimaginable. The WWW allows advanced marketing activities and more particularly interactive marketing, as the user is actively involved in responding to the vendor’s promotion campaign. Interactive TV, also referred to as iTV, combines the appeal and mass audience of traditional TV with the interactive features such as those currently available on the Web. Although personalisation is a practice used widely on the Internet by many sites, applying personalisation techniques over interactive television presents a number of difficulties. In this paper we focus on the design and testing process of the User Interface (UI) for the Interactive \& Personalized Advertisement TV viewer. We argue that there are a lot of challenges involved in the designing of interactive TV applications. These are related with the differences of the medium from the traditional PC based Information Systems in terms of input and output devices, viewing environment, number of users and low level of expertise in PC usage.},
author = {Lekakos, George and Chorianopoulos, Konstantinos and Spinellis, Diomidis},
booktitle = {ECIS 2001},
url1 = {Information Systems in the Living Room A Case Study of Personalized Interactive TV Design.pdf},
keywords = {advertising,entertainment,human-computer interaction,interactive TV,personalization,usability,user modelling},
mendeley-tags = {entertainment,human-computer interaction,user modelling},
pages = {319--329},
title = {{Information Systems in the Living Room: A Case Study of Personalized Interactive TV Design}},
url2 = {http://aisel.aisnet.org/cgi/viewcontent.cgi?article=1067\&context=ecis2001},
year = {2001}
}
@inproceedings{Lekakos2001a,
abstract = {Following the case of the Internet, Interactive TV can be expected to revolutionise marketing practices and lead to a paradigm shift in the way advertising is developed, conducted, and analysed. Interactive TV, combines the appeal and mass audience of traditional TV with the interactive features such as those currently available on the Web and offers new possibilities for the viewer, who can directly access relevant information and other services being just ‘one-click’ away. In this context, personalisation of advertisements refers to the use of technology and viewer information in order to tailor commercials and their respective interactive content to each individual viewer profile. In this paper we deal with the topic of advertising over digital interactive TV and describe a specific approach to the delivery of personalised interactive advertisement content to viewers based on their individual profile, focusing on the necessary architecture, mechanisms and user interface issues which reveal a challenging research domain.},
author = {Lekakos, George and Papakyriakopoulos, Dimitris and Chorianopoulos, Konstantinos},
booktitle = {Personalized TV 01},
url1 = {An integrated approach to interactive and personalized TV advertising.pdf},
keywords = {advertising,interactive TV,personalization,usability,user modelling},
mendeley-tags = {user modelling},
title = {{An integrated approach to interactive and personalized TV advertising}},
url2 = {http://www.di.unito.it/~liliana/UM01/lekakos.pdf},
year = {2001}
}
@article{boziosadvanced,
abstract = {This paper presents the innovative approach of the IST project iMEDIA towards Consumer Clustering and Targeted Advertising in a Digital TV Environment. iMEDIA covers the need of Advertising Companies to identify broad classes of TV viewers who will respond similarly to marketing actions, and thus develop their target advertising techniques. The consumers are equipped with a settop box (STB) with storage facilities and a modem. The definition of consumer profiles and clusters is based on demographics, preferences, and analysis of the consumer interactions with the TV, which are tracked automatically. In order to protect consumers’ identities, consumer data are stored locally on the STB and the classification of a consumer in a specific cluster takes place at the client side. Consumer data from the consumers, who permit it, is periodically transferred to the Server where Data Mining techniques are applied. The extracted consumer behavioral rules associate the clusters with consumer profiles and interaction/navigational data and are sent through the broadcast channel to the consumers’ STBs for the classification of each consumer and the playback of the advertisements that match consumer interests.},
author = {Bozios, Theodoros and Lekakos, George and Skoularidou, Victoria and Chorianopoulos, Konstantinos},
url1 = {Advanced Techniques for Personalized Advertising in a Digital TV Environment The iMEDIA System.pdf},
journal = {eBusiness and eWork Conference},
keywords = {advertising,interactive TV,personalization,software architecture,software technology,user modelling},
mendeley-tags = {software technology,user modelling},
pages = {1025--1031},
publisher = {Citeseer},
title = {{Advanced Techniques for Personalized Advertising in a Digital TV Environment: The iMEDIA System}},
year = {2001}
}