Cross-lingual Supervision Improves Unsupervised Neural Machine Translation Mingxuan Wang author Hongxiao Bai author Hai Zhao author Lei Li author 2021-06 text Proceedings of the 2021 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies: Industry Papers Young-bum Kim editor Yunyao Li editor Owen Rambow editor Association for Computational Linguistics Online conference publication wang-etal-2021-cross 10.18653/v1/2021.naacl-industry.12 https://aclanthology.org/2021.naacl-industry.12/ 2021-06 89 96