A Unified MRC Framework for Named Entity Recognition Xiaoya Li author Jingrong Feng author Yuxian Meng author Qinghong Han author Fei Wu author Jiwei Li author 2020-07 text Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics Dan Jurafsky editor Joyce Chai editor Natalie Schluter editor Joel Tetreault editor Association for Computational Linguistics Online conference publication li-etal-2020-unified 10.18653/v1/2020.acl-main.519 https://aclanthology.org/2020.acl-main.519/ 2020-07 5849 5859