Hierarchical Phrase Table Combination for Machine Translation Conghui Zhu author Taro Watanabe author Eiichiro Sumita author Tiejun Zhao author 2013-08 text Proceedings of the 51st Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers) Hinrich Schuetze editor Pascale Fung editor Massimo Poesio editor Association for Computational Linguistics Sofia, Bulgaria conference publication zhu-etal-2013-hierarchical https://aclanthology.org/P13-1079/ 2013-08 802 810