Methods for Using Textual Entailment in Open-Domain Question Answering Sanda Harabagiu author Andrew Hickl author 2006-07 text Proceedings of the 21st International Conference on Computational Linguistics and 44th Annual Meeting of the Association for Computational Linguistics Nicoletta Calzolari editor Claire Cardie editor Pierre Isabelle editor Association for Computational Linguistics Sydney, Australia conference publication harabagiu-hickl-2006-methods 10.3115/1220175.1220289 https://aclanthology.org/P06-1114/ 2006-07 905 912