The Art of Abstention: Selective Prediction and Error Regularization for Natural Language Processing Ji Xin author Raphael Tang author Yaoliang Yu author Jimmy Lin 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 xin-etal-2021-art 10.18653/v1/2021.acl-long.84 https://aclanthology.org/2021.acl-long.84/ 2021-08 1040 1051