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multibox loss #27

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XDUSPONGE opened this issue Mar 5, 2020 · 0 comments

XDUSPONGE commented Mar 5, 2020

Thanks for your code
in the paper

the cls loss is normalized by the number of positive and negative anchors
the reg term is normalized by the number of positive anchors.
so may be

it should be changed

M = num_pos.data.sum().float() + num_neg.data.sum().float()
loss_c /= N

also in the paper L =\lambda * L_{cls} + L_{reg}
in the code

loss_l, loss_c = criterion(out, targets)
loss = loss_l + loss_c

may be the two place should be modified

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