Improving Event Causality Identification via Self-Supervised Representation Learning on External Causal Statement Xinyu Zuo author Pengfei Cao author Yubo Chen author Kang Liu author Jun Zhao author Weihua Peng author Yuguang Chen author 2021-08 text Findings of the Association for Computational Linguistics: ACL-IJCNLP 2021 Chengqing Zong editor Fei Xia editor Wenjie Li editor Roberto Navigli editor Association for Computational Linguistics Online conference publication zuo-etal-2021-improving 10.18653/v1/2021.findings-acl.190 https://aclanthology.org/2021.findings-acl.190/ 2021-08 2162 2172