Improvements in Phrase-Based Statistical Machine Translation Richard Zens author Hermann Ney author 2004-may 2 - may 7 text Proceedings of the Human Language Technology Conference of the North American Chapter of the Association for Computational Linguistics: HLT-NAACL 2004 Association for Computational Linguistics Boston, Massachusetts, USA conference publication zens-ney-2004-improvements https://aclanthology.org/N04-1033/ 2004-may 2 - may 7 257 264