Without a ‘doubt’? Unsupervised Discovery of Downward-Entailing Operators

Without a ‘doubt’? Unsupervised Discovery of Downward-Entailing Operators Cristian Danescu-Niculescu-Mizil author Lillian Lee author Richard Ducott 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 danescu-niculescu-mizil-etal-2009-without https://aclanthology.org/N09-1016/ 2009-06 137 145