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Focalloss只针对正分类logits进行了处理，没有针对误分类logits处理 #5

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lkjie opened this issue Feb 18, 2019 · 0 comments
Open

Focalloss只针对正分类logits进行了处理，没有针对误分类logits处理 #5

lkjie opened this issue Feb 18, 2019 · 0 comments

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@lkjie
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lkjie commented Feb 18, 2019

假设一个三分类任务，
ytruei = tf.Variable([0], dtype=tf.float32)
ypred = tf.Variable([[0.5,0.25,0.25]])
ypred2 = tf.Variable([[0.5,0.4,0.1]])
对于ypred与ypred2来讲两者的loss不应该相同，
把负样本的损失也加上比较好
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