MarkupLM: Pre-training of Text and Markup Language for Visually Rich Document Understanding Junlong Li author Yiheng Xu author Lei Cui author Furu Wei author 2022-05 text Proceedings of the 60th Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers) Smaranda Muresan editor Preslav Nakov editor Aline Villavicencio editor Association for Computational Linguistics Dublin, Ireland conference publication li-etal-2022-markuplm 10.18653/v1/2022.acl-long.420 https://aclanthology.org/2022.acl-long.420/ 2022-05 6078 6087