Semi-supervised New Event Type Induction and Event Detection Lifu Huang author Heng Ji 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 huang-ji-2020-semi 10.18653/v1/2020.emnlp-main.53 https://aclanthology.org/2020.emnlp-main.53/ 2020-11 718 724