LearnDA: Learnable Knowledge-Guided Data Augmentation for Event Causality Identification Xinyu Zuo author Pengfei Cao author Yubo Chen author Kang Liu author Jun Zhao author Weihua Peng author Yuguang Chen author 2021-08 text Proceedings of the 59th Annual Meeting of the Association for Computational Linguistics and the 11th International Joint Conference on Natural Language Processing (Volume 1: Long Papers) Chengqing Zong editor Fei Xia editor Wenjie Li editor Roberto Navigli editor Association for Computational Linguistics Online conference publication zuo-etal-2021-learnda 10.18653/v1/2021.acl-long.276 https://aclanthology.org/2021.acl-long.276/ 2021-08 3558 3571