Unsupervised learning of bilingual categories in inversion transduction grammar induction Markus Saers author Dekai Wu author 2013-dec 5-6 text Proceedings of the 10th International Workshop on Spoken Language Translation: Papers Joy Ying Zhang editor Heidelberg, Germany conference publication saers-wu-2013-unsupervised-learning https://aclanthology.org/2013.iwslt-papers.15/ 2013-dec 5-6