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公式6的常数消失问题。 #4

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xizhaoyang opened this issue Jul 14, 2020 · 1 comment

xizhaoyang commented Jul 14, 2020

公式6是因为中的正样本的平方项没了，是因为它是在训练集上是一个常数的原因吗？

Owner

chenchongthu commented Jul 14, 2020

是的，因为优化的过程实际上包含对loss的求导过程，常数项的导数为0，去掉并不会影响该loss function的结果：）

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