Loss functions in deep learning

Demystifying Focal Loss I: A More Focused Cross Entropy Loss

Rethinking cross entropy loss for semantic segmentation tasks

Shuchen Du
AI Salon
Published in
4 min readDec 13, 2019

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Inokashira park in Tokyo

In computer vision, cross entropy is a widely used loss item in classification problems. In semantic segmentation, we use it for each pixel. However, this per-pixel fashion may cause…

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