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第九章策略梯度的损失函数 #79

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mgt-lya opened this issue Jun 24, 2024 · 1 comment
Open

第九章策略梯度的损失函数 #79

mgt-lya opened this issue Jun 24, 2024 · 1 comment

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@mgt-lya
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mgt-lya commented Jun 24, 2024 •
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REINFORCE代码实现那里，loss=-log_prob*G应该是损失函数的梯度才对，为什么代码里直接把它当成了损失函数然后用backward()求梯度再更新啊
@Hosen760
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这段话中说错了，应当将梯度符号去掉，这样就是损失函数，对其反向传播求梯度来更新参数即可。
但是代码的实现是对的。

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@mgt-lya @Hosen760