The UMD machine translation systems at IWSLT 2015 Amittai Axelrod author Marine Carpuat author 2015-dec 3-4 text Proceedings of the 12th International Workshop on Spoken Language Translation: Evaluation Campaign Marcello Federico editor Sebastian Stüker editor Jan Niehues editor Da Nang, Vietnam conference publication axelrod-carpuat-2015-umd https://aclanthology.org/2015.iwslt-evaluation.8/ 2015-dec 3-4 55 61