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ShannonAI / mrc-for-flat-nested-ner

Code for ACL 2020 paper `A Unified MRC Framework for Named Entity Recognition`
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start_outputs和end_outputs维度问题 #72

Closed lxgend closed 3 years ago

lxgend commented 3 years ago

https://github.com/ShannonAI/mrc-for-flat-nested-ner/blob/5a2a52690a89baae87cfe8138eed74c57ba60606/models/bert_query_ner.py#L18

请教一下， nn.Linear(config.hidden_size, 1) 中的1，代表什么意思？ 这个维度设定为1或者2，分别有什么考量？

非常迷惑，烦请解答，谢谢

YuxianMeng commented 3 years ago

@lxgend 输出维度1+sigmoid和输出维度2+softmax都可以做二分类，区别应该不大