A Comparative Study of Hypothesis Alignment and its Improvement for Machine Translation System Combination Boxing Chen author Min Zhang author Haizhou Li author Aiti Aw author 2009-08 text Proceedings of the Joint Conference of the 47th Annual Meeting of the ACL and the 4th International Joint Conference on Natural Language Processing of the AFNLP Keh-Yih Su editor Jian Su editor Janyce Wiebe editor Haizhou Li editor Association for Computational Linguistics Suntec, Singapore conference publication chen-etal-2009-comparative https://aclanthology.org/P09-1106/ 2009-08 941 948