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caffe_gpu_scal(count, alpha_, power_prob_data); #5

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xuanyuyt opened this issue Sep 9, 2017 · 2 comments

xuanyuyt commented Sep 9, 2017

Why the alpha_ is fixed, in paper: if sample is a positive sample, multiply alpha_ ; else multiply (1-alpha_ )

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zimenglan-sysu-512 commented Sep 9, 2017

hi @xuanyuyt,
in paper, it's binary. here i just use softmax, and all classes share the same alpha.

chinabing commented Apr 25, 2018

@zimenglan-sysu-512 if you use the same alpha, it could be delete. is there any difference ?

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