Improving Statistical Machine Translation Performance by Training Data Selection and Optimization Yajuan Lü author Jin Huang author Qun Liu author 2007-06 text Proceedings of the 2007 Joint Conference on Empirical Methods in Natural Language Processing and Computational Natural Language Learning (EMNLP-CoNLL) Jason Eisner editor Association for Computational Linguistics Prague, Czech Republic conference publication lu-etal-2007-improving https://aclanthology.org/D07-1036/ 2007-06 343 350