Improving QA Accuracy by Question Inversion John Prager author Pablo Duboue author Jennifer Chu-Carroll 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 prager-etal-2006-improving 10.3115/1220175.1220310 https://aclanthology.org/P06-1135/ 2006-07 1073 1080