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zimenglan-sysu-512 / Focal-Loss

loss layer of implementation
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How to use propagate_down? #17

Open adityag6994 opened 5 years ago

adityag6994 commented 5 years ago

Hi, Can you please explain the use of parameter propagate_down ? And what would: propagate_down: 1 propagate_down: 0 mean ?

adityag6994 commented 5 years ago

Does it mean, propagate_down : 1 for bottom[0] and propagate_down:0 for bottom[1] as as it is label. https://github.com/BVLC/caffe/blob/99bd99795dcdf0b1d3086a8d67ab1782a8a08383/include/caffe/layers/softmax_loss_layer.hpp#L89](url)