the question about negativemining #67
Description
Please, why is the gradient calculated like "cls_grad /= len(np.where(cls_keep == 1)[0]) bbox_grad /= len(np.where(bbox_keep == 1)[0])" in backward?
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Please, why is the gradient calculated like "cls_grad /= len(np.where(cls_keep == 1)[0]) bbox_grad /= len(np.where(bbox_keep == 1)[0])" in backward?