Nested Named Entity Recognition for Chinese Electronic Health Records with QA-based Sequence Labeling Yu-Lun Chiang author Chih-Hao Lin author Cheng-Lung Sung author Keh-Yih Su author 2021-10 text Proceedings of the 33rd Conference on Computational Linguistics and Speech Processing (ROCLING 2021) Lung-Hao Lee editor Chia-Hui Chang editor Kuan-Yu Chen editor The Association for Computational Linguistics and Chinese Language Processing (ACLCLP) Taoyuan, Taiwan conference publication chiang-etal-2021-nested https://aclanthology.org/2021.rocling-1.3/ 2021-10 18 25