Biomedical Event Extraction based on Knowledge-driven Tree-LSTM Diya Li author Lifu Huang author Heng Ji author Jiawei Han author 2019-06 text Proceedings of the 2019 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies, Volume 1 (Long and Short Papers) Jill Burstein editor Christy Doran editor Thamar Solorio editor Association for Computational Linguistics Minneapolis, Minnesota conference publication li-etal-2019-biomedical 10.18653/v1/N19-1145 https://aclanthology.org/N19-1145/ 2019-06 1421 1430