Towards Topic Labeling with Phrase Entailment and Aggregation Yashar Mehdad author Giuseppe Carenini author Raymond T Ng author Shafiq Joty author 2013-06 text Proceedings of the 2013 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies Lucy Vanderwende editor Hal Daumé III editor Katrin Kirchhoff editor Association for Computational Linguistics Atlanta, Georgia conference publication mehdad-etal-2013-towards https://aclanthology.org/N13-1018/ 2013-06 179 189