The CASIA statistical machine translation system for IWSLT 2009 Maoxi Li author Jiajun Zhang author Yu Zhou author Chengqing Zong author 2009-dec 1-2 text Proceedings of the 6th International Workshop on Spoken Language Translation: Evaluation Campaign Tokyo, Japan conference publication li-etal-2009-casia https://aclanthology.org/2009.iwslt-evaluation.13/ 2009-dec 1-2 83 90