Ashish Venugopal, Andreas Zollmann, Noah A. Smith, Stephan Vogel. Preference Grammars: Softening Syntactic Constraints to Improve Statistical Machine Translation. In Human Language Technologies: Conference of the North American Chapter of the Association of Computational Linguistics, Proceedings, May 31 - June 5, 2009, Boulder, Colorado, USA. pages 236-244, The Association for Computational Linguistics, 2009. [doi]
Abstract is missing.