Optimizing Word Alignments with Better Subword Tokenization Anh Khoa Ngo Ho author François Yvon author 2021-08 text Proceedings of Machine Translation Summit XVIII: Research Track Kevin Duh editor Francisco Guzmán editor Association for Machine Translation in the Americas Virtual conference publication ngo-ho-yvon-2021-optimizing https://aclanthology.org/2021.mtsummit-research.21/ 2021-08 256 269