Cascaded Head-colliding Attention Lin Zheng author Zhiyong Wu author Lingpeng Kong 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 zheng-etal-2021-cascaded 10.18653/v1/2021.acl-long.45 https://aclanthology.org/2021.acl-long.45/ 2021-08 536 549