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关于模型输入label的问题 #21

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shawroad opened this issue Aug 3, 2022 · 2 comments
Open

关于模型输入label的问题 #21

shawroad opened this issue Aug 3, 2022 · 2 comments

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@shawroad
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shawroad commented Aug 3, 2022

您好，在gpt2这种生成模型中，输入的真实label不应该是和输入的input_ids错位吗？然后进行损失计算。 我看您代码中是没有错位的，因为什么原因呢？ 谢谢了~
@syspider
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他复用了GPT2LMHeadModel这个类里的loss，这里面计算loss的时候已经错位了，你可以看源码

@shawroad
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OK 我一般是自己实现这个loss，所以没细看

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@syspider @shawroad