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损失函数的实现 #10

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Mhaiyang opened this issue Jun 1, 2020 · 0 comments

Mhaiyang commented Jun 1, 2020

你好，关于损失函数有两个地方不太理解，wbce = (weit*wbce).sum(dim=(2,3))/weit.sum(dim=(2,3))，这一句中，分母是权重的和，而论文中是ya的和。第二个就是计算iou时，分子分母都加了一个1，目的是避免0/0的情况吗？谢谢

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