Low-resource machine translation using MaTrEx Yanjun Ma author Tsuyoshi Okita author Özlem Çetinoğlu author Jinhua Du author Andy Way author 2009-dec 1-2 text Proceedings of the 6th International Workshop on Spoken Language Translation: Evaluation Campaign Tokyo, Japan conference publication ma-etal-2009-low https://aclanthology.org/2009.iwslt-evaluation.4/ 2009-dec 1-2 29 36