Undocumented multiplication by num_classes

[pjckoch]

Hi,

thank you first of all for the great paper and for publishing the code.

I was wondering why you are multiplying the class_weight by num_classes here:

DisAlign/semantic_seg/disalign/models/losses/grw_cross_entropy_loss.py

Line 35 in a2fc350

class_weight = class_weight / np.sum(class_weight) * num_classes

I cannot find this multiplication in the equation of the paper:

Maybe it is a misunderstanding on my end. Thank you in advance!

Patrick