Optimization for Statistical Machine Translation: A Survey Graham Neubig author Taro Watanabe author 2016-03 text journal article Computational Linguistics continuing MIT Press Cambridge, MA periodical academic journal neubig-watanabe-2016-optimization 10.1162/COLI_a_00241 https://aclanthology.org/J16-1001/ 2016-03 42 1 1 54