The Heidelberg University English-German translation system for IWSLT 2015 Laura Jehl author Patrick Simianer author Julian HIrschler author Stefan Riezler 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 jehl-etal-2015-heidelberg https://aclanthology.org/2015.iwslt-evaluation.6/ 2015-dec 3-4 45 49