Enhanced Language Representation with Label Knowledge for Span Extraction Pan Yang author Xin Cong author Zhenyu Sun author Xingwu Liu author 2021-11 text Proceedings of the 2021 Conference on Empirical Methods in Natural Language Processing Marie-Francine Moens editor Xuanjing Huang editor Lucia Specia editor Scott Wen-tau Yih editor Association for Computational Linguistics Online and Punta Cana, Dominican Republic conference publication yang-etal-2021-enhanced 10.18653/v1/2021.emnlp-main.379 https://aclanthology.org/2021.emnlp-main.379/ 2021-11 4623 4635