MRC-based Medical NER with Multi-task Learning and Multi-strategies Xiaojing Du author Jia Yuxiang author Zan Hongying author 2022-10 text eng Proceedings of the 21st Chinese National Conference on Computational Linguistics Maosong Sun editor Yang Liu editor Wanxiang Che editor Yang Feng editor Xipeng Qiu editor Gaoqi Rao editor Yubo Chen editor Chinese Information Processing Society of China Nanchang, China conference publication du-etal-2022-mrc https://aclanthology.org/2022.ccl-1.74/ 2022-10 836 847