Question Answering Using Enhanced Lexical Semantic Models Wen-tau Yih author Ming-Wei Chang author Christopher Meek author Andrzej Pastusiak author 2013-08 text Proceedings of the 51st Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers) Hinrich Schuetze editor Pascale Fung editor Massimo Poesio editor Association for Computational Linguistics Sofia, Bulgaria conference publication yih-etal-2013-question https://aclanthology.org/P13-1171/ 2013-08 1744 1753