This demo application allows you to query ~130K articles from the Stack Exchange / Stack overflow Data dump using an Erlang implementation of the WAND / max_score evaluation stategy for Top-K Queries as outlined in this paper. It was fun to translate this Java DAAT implementation to a relative speedy Erlang implementation with immutable data structures.
Try it out the demo here. It's hosted on a 1GB Single Core server from Digital Ocean.
- Git clone the repository git@github.com:wardbekker/search.git
- Gunzip the existing data files:
gunzip Posts.xml.gz,gunzip db_data\document_field_value.DCD.gzandgunzip db_data\postings.DCD.gz - Start application (and dev shell) with
./shell - Browse to
http://localhost:8080/and try out a query. For example:erlang actor.
Copyright (c) 2014 Ward Bekker ward@wardbekker.com
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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