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acc为0 #6

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dwangxxx opened this issue Sep 27, 2020 · 5 comments
Closed

acc为0 #6

dwangxxx opened this issue Sep 27, 2020 · 5 comments

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@dwangxxx
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你好，我想请问一下，我训练自己的数据，训练了两个epoch之后，虽然loss一直在慢慢降低，但是acc还是一直为0，这是为什么啊
@heshuting555
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heshuting555 commented Sep 27, 2020 via email

@dwangxxx
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因为fc参数要重新训练，所以acc前面接近0，后面acc会上升的呢～ 发自我的iPhone
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------------------ 原始邮件 ------------------ 发件人: WangDeng <notifications@github.com> 发送时间: 2020年9月27日 11:19 收件人: heshuting555/NAIC_Person_ReID_DMT <NAIC_Person_ReID_DMT@noreply.github.com> 抄送: Subscribed <subscribed@noreply.github.com> 主题: 回复：[heshuting555/NAIC_Person_ReID_DMT] acc为0 (#6) 你好，我想请问一下，我训练自己的数据，训练了两个epoch之后，虽然loss一直在慢慢降低，但是acc还是一直为0，这是为什么啊 — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub, or unsubscribe.

非常感谢！

@heshuting555
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heshuting555 commented Sep 29, 2020 via email

@4524353245
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您好，我也有这个问题，在训练了10个epoch以后acc 仍然为零，而且loss值降的很快，最初的大小只有5.4,一个iteration就会降0.1左右，请问这是什么情况呢？试了一些办法，没有解决

@heshuting555
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是用的Ranger优化器嘛？可能是Ranger优化器使得收敛趋势有点不稳定呢？

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@dwangxxx @4524353245 @heshuting555