Enriching SMT Training Data via Paraphrasing Wei He author Shiqi Zhao author Haifeng Wang author Ting Liu author 2011-11 text Proceedings of 5th International Joint Conference on Natural Language Processing Haifeng Wang editor David Yarowsky editor Asian Federation of Natural Language Processing Chiang Mai, Thailand conference publication he-etal-2011-enriching https://aclanthology.org/I11-1090/ 2011-11 803 810