Optimal Reduction of Rule Length in Linear Context-Free Rewriting Systems Carlos Gómez-Rodríguez author Marco Kuhlmann author Giorgio Satta author David Weir author 2009-06 text Proceedings of Human Language Technologies: The 2009 Annual Conference of the North American Chapter of the Association for Computational Linguistics Mari Ostendorf editor Michael Collins editor Shri Narayanan editor Douglas W Oard editor Lucy Vanderwende editor Association for Computational Linguistics Boulder, Colorado conference publication gomez-rodriguez-etal-2009-optimal https://aclanthology.org/N09-1061/ 2009-06 539 547