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请问youtube_match_model.py为何不用原论文的softmax的方式呢？ #23

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shuDaoNan9 opened this issue Jan 28, 2021 · 0 comments

shuDaoNan9 commented Jan 28, 2021

我看YouTubeNet原本的召回阶段使用的是softmax分类，是因为认为这个应该被理解为多分类问题，可以“同时”选择多个“下个”要播放的视频吗？
https://github.com/yangxudong/deeplearning/blob/master/youtube_match_model/youtube_match_model.py
loss = tf.nn.sigmoid_cross_entropy_with_logits(
labels=labels_one_hot,
logits=logits)

谢谢！

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