Named Entity Recognition for Social Media Texts with Semantic Augmentation Yuyang Nie author Yuanhe Tian author Xiang Wan author Yan Song author Bo Dai author 2020-11 text Proceedings of the 2020 Conference on Empirical Methods in Natural Language Processing (EMNLP) Bonnie Webber editor Trevor Cohn editor Yulan He editor Yang Liu editor Association for Computational Linguistics Online conference publication nie-etal-2020-named 10.18653/v1/2020.emnlp-main.107 https://aclanthology.org/2020.emnlp-main.107/ 2020-11 1383 1391