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IrvingMeng / MagFace

MagFace: A Universal Representation for Face Recognition and Quality Assessment, CVPR2021, Oral
Apache License 2.0
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Questions about negative loss in paper. #4

Closed mls1999725 closed 3 years ago

mls1999725 commented 3 years ago

Hi, I'm very interested in your work. I wonder what is negative loss in Figure 3 of MagFace paper? Is that the value of cross-entropy loss after softmax?

IrvingMeng commented 3 years ago

We appreciate your interests in MagFace. The negative loss seems ambiguous and we will clarify it more clearly in the next version. It is actually the negative value of the cross entropy loss, i.e., the log(softmax) value. Easy samples have large softmax values and so are log(softmax) values.

mls1999725 commented 3 years ago

I get it, Thanks a lot!