Document Flattening: Beyond Concatenating Context for Document-Level Neural Machine Translation Minghao Wu author George Foster author Lizhen Qu author Gholamreza Haffari author 2023-05 text Proceedings of the 17th Conference of the European Chapter of the Association for Computational Linguistics Andreas Vlachos editor Isabelle Augenstein editor Association for Computational Linguistics Dubrovnik, Croatia conference publication wu-etal-2023-document 10.18653/v1/2023.eacl-main.33 https://aclanthology.org/2023.eacl-main.33/ 2023-05 448 462