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a3c代码注释小问题 #227

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AInseven opened this issue Jan 8, 2021 · 0 comments

AInseven commented Jan 8, 2021

line170 # 从server拉取最新的梯度
self.client.set_weights(self.server.get_weights())
拉取的应该时网络参数吧，不是梯度。给sever上传的是梯度，下载的不是梯度

感谢
老师每次函数都是换着用，学到很多，有心了

entropy = tf.nn.softmax_cross_entropy_with_logits(labels=policy,
logits=logits)
policy_loss = policy_loss - 0.01 * entropy

这段儿减去了的entropy 是用logits 和把softmax(logits)当labels 算的
自己和自己交叉熵，不过我试了下有用，就是作用不太明白，希望能补充解释下

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