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@heroazhe 很简单的一个想法啊,结束位置依赖于开始位置,很自然的将开始位置信息与文本语义向量结合作为结束预测的输入,那相当于有两种方式,直接hard label即argmax(logits),这种的话train时候hard label是真实的,但是预测的时候是argmax的,不一定正确,这个就像seq2seq里面的“Exposure @bias”(好像那么一回事,呵呵瞎哔哔的),那么就可以使用soft label,即softmax预测的logits,这样train和test是同步的,当然可以折中,抽样,加一个概率判断是使用hard还是soft。
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@heroazhe 不会吧的啊 ,你看下bert的输出
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@heroazhe 还是那个问题啊 ,训练的时候标签是可知的,可用可不用,这里需呀做实验才知道哪种好,我这里可能是应该是为了应对eval使用soft label,将hard label转化为one-hot形式,纬度保持一致,具体的需要你个人做实验蔡得知。
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