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inital loss is nan? #3

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yang0817manman opened this issue Apr 2, 2020 · 3 comments
Open

inital loss is nan? #3

yang0817manman opened this issue Apr 2, 2020 · 3 comments

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@yang0817manman
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非常感谢你的分享。为什么我用你分享的loss进行试验，初始loss一直都是nan，无论怎么修改学习率都是nan？请问这是什么原因？
@qianjinhao
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非常感谢你的分享。为什么我用你分享的loss进行试验，初始loss一直都是nan，无论怎么修改学习率都是nan？请问这是什么原因？

你是不是用cos度量相似度？我目前在mnist上可以训练，没有出现nan，但效果不好。欢迎指出我代码的问题和提交修改。

@yang0817manman
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请问你有没有试过人脸数据或者行人，类别数特别多，我用你分享的loss试验人脸，调试发现loss_p为0,无论怎么修改参数，打印的loss总是nan或0？ @qianjinhao

@sycophant-stone
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可以在这里添加 一个1e-10.
https://github.com/qianjinhao/circle-loss/blob/master/circle_loss.py#L38

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@qianjinhao @sycophant-stone @yang0817manman