Focal loss

[nikhilchh]

I saw that there is code for focal loss and hyper-parameter 'g'. I tried with g=1.5 but the results were not good compared to what i get without focal loss.

Did you do experimentation with focal loss ? If yes what was the conclusion ?

loss.py

        g = h['fl_gamma']  # focal loss gamma
        if g > 0:
            BCEcls, BCEobj = FocalLoss(BCEcls, g), FocalLoss(BCEobj, g)