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为什么交叉熵计算时目标标签都是0 #30

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AlonZhao opened this issue Jan 17, 2025 · 3 comments
Open

为什么交叉熵计算时目标标签都是0 #30

AlonZhao opened this issue Jan 17, 2025 · 3 comments

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@AlonZhao
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zhiyu 你好，
label = torch.zeros(scores.shape[0], dtype=torch.long).to(scores.device) # why zeros？
irl_loss = F.cross_entropy(scores, label)
在计算损失函数时，交叉熵计算为什么设定label 标签都为零呢？
@SteveHao74
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同问这个问题

@HaoquanLiu
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Same question here.

@Jerome-Cong
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#5 I refer to the explanation here

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@HaoquanLiu @AlonZhao @SteveHao74 @Jerome-Cong