I2R’s machine translation system for IWSLT 2009 Xiangyu Duan author Deyi Xiong author Hui Zhang author Min Zhang author Haizhou Li author 2009-dec 1-2 text Proceedings of the 6th International Workshop on Spoken Language Translation: Evaluation Campaign Tokyo, Japan conference publication duan-etal-2009-i2rs https://aclanthology.org/2009.iwslt-evaluation.7/ 2009-dec 1-2 50 54