转自：
https://createmomo.github.io/
BiLSTM-CRF模型中CRF层的解读：
文章链接：
标题：CRF Layer on the Top of BiLSTM - 1 链接：https://createmomo.github.io/2017/09/12/CRF_Layer_on_the_Top_of_BiLSTM_1/
标题：CRF Layer on the Top of BiLSTM - 2 链接：https://createmomo.github.io/2017/09/23/CRF_Layer_on_the_Top_of_BiLSTM_2/
标题：CRF Layer on the Top of BiLSTM - 3 链接：https://createmomo.github.io/2017/10/08/CRF-Layer-on-the-Top-of-BiLSTM-3/
标题：CRF Layer on the Top of BiLSTM - 4 链接：https://createmomo.github.io/2017/10/17/CRF-Layer-on-the-Top-of-BiLSTM-4/
标题：CRF Layer on the Top of BiLSTM - 5 链接：https://createmomo.github.io/2017/11/11/CRF-Layer-on-the-Top-of-BiLSTM-5/
标题：CRF Layer on the Top of BiLSTM - 6 链接：https://createmomo.github.io/2017/11/24/CRF-Layer-on-the-Top-of-BiLSTM-6/