Modeling Document-level Causal Structures for Event Causal Relation Identification Lei Gao author Prafulla Kumar Choubey author Ruihong Huang 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 gao-etal-2019-modeling 10.18653/v1/N19-1179 https://aclanthology.org/N19-1179/ 2019-06 1808 1817