Bidirectional Hierarchical Attention Networks based on Document-level Context for Emotion Cause Extraction Guimin Hu author Guangming Lu author Yi Zhao author 2021-11 text Findings of the Association for Computational Linguistics: EMNLP 2021 Marie-Francine Moens editor Xuanjing Huang editor Lucia Specia editor Scott Wen-tau Yih editor Association for Computational Linguistics Punta Cana, Dominican Republic conference publication hu-etal-2021-bidirectional-hierarchical 10.18653/v1/2021.findings-emnlp.51 https://aclanthology.org/2021.findings-emnlp.51/ 2021-11 558 568