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训练效果越来越差 #45

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lanhoulllllllllll opened this issue Aug 9, 2023 · 2 comments
Open

训练效果越来越差 #45

lanhoulllllllllll opened this issue Aug 9, 2023 · 2 comments

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@lanhoulllllllllll
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您好，在训练的过程中我发现训练的效果越来越差，我用的是自己的数据集（遥感图像的），我是在加载您提供的预训练权的基础上再训练的，就是我没有从头开始训练，然后我测试了训练出来的权的效果，发现训练的越久效果越差
原始权
image
训练了2000step
image
训练4000step
image
训练6000step
image
为啥会这样啊，我数据集总共874张图片，是因为数据不够吗，如果我只有874张图片，那么相应的训练参数（迭代次数，学习率）等都重新调整吗，或者是需要从头开始训练，不加载自然图像训练出来的权？
希望作者有时间给我解答一下，非常感谢！
@Algolzw
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Algolzw commented Aug 9, 2023

你好，finetune的话是有可能出现这种情况的。你的验证集是怎么制作的呢，如果和训练集差别比较大的话也可能导致结果变差。

@lanhoulllllllllll
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lanhoulllllllllll commented Aug 9, 2023 •
edited

验证集我直接用的训练集里面的三张图片，然后通过generate_mod_LRblur.py生成LR图像，

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@Algolzw @lanhoulllllllllll