Character-level NMT and language similarity Josef Jon author Ondřej Bojar author 2023-09 text Proceedings of Machine Translation Summit XIX, Vol. 1: Research Track Masao Utiyama editor Rui Wang editor Asia-Pacific Association for Machine Translation Macau SAR, China conference publication jon-bojar-2023-character https://aclanthology.org/2023.mtsummit-research.30/ 2023-09 360 371