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alpha zero是如何避免在不可行的位置落子的 #113

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ZhangXi20181002 opened this issue Sep 26, 2020 · 2 comments
Open

alpha zero是如何避免在不可行的位置落子的 #113

ZhangXi20181002 opened this issue Sep 26, 2020 · 2 comments

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@ZhangXi20181002
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想请教一下，alpha zero是如何避免在不可行的位置落子的，比如该位置已经被占了，因为mcts在select的时候，每一个动作的概率是跟policy的输出有关，而在一开始的时候，policy是不知道哪些位置可行，哪些不可行，这样是否会产生不可行的动作？
@KohakuBlueleaf
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在產生policy之後把所有不能動的位置的porb改成-INF或0
（有過softmax用0即可 沒有的話用-INF)

@ZhangXi20181002
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在產生policy之後把所有不能動的位置的porb改成-INF或0
（有過softmax用0即可 沒有的話用-INF)

明白了，感谢您的解答！

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@ZhangXi20181002 @KohakuBlueleaf