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NER 中crf的状态特征错误的加上了非线性激活 #474

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lcy-seso opened this issue Nov 16, 2017 · 0 comments · Fixed by #473
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NER 中crf的状态特征错误的加上了非线性激活 #474

lcy-seso opened this issue Nov 16, 2017 · 0 comments · Fixed by #473
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  • 在NER的例子中，调用 crf 层之前依赖于首先通过 fc 层计算状态特征。
  • CRF 层在内部会计算状态特征和转移特征的exponetials，并进行全局归一化。因此，fc 层在计算状态特征时不应该使用任何非线性激活。
  • paddle.layer.fc默认激活函数是 tanh，让crf的状态特征计算“意外”地加上了非线性激活。
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fix a bug of NER. lcy-seso/models
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