Boundary Detection with BERT for Span-level Emotion Cause Analysis Xiangju Li author Wei Gao author Shi Feng author Yifei Zhang author Daling Wang 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 li-etal-2021-boundary 10.18653/v1/2021.findings-acl.60 https://aclanthology.org/2021.findings-acl.60/ 2021-08 676 682