The Role of Lexico-Semantic Feedback in Open-Domain Textual Question-Answering Sanda Harabagiu author Dan Moldovan author Marius Paşca author Rada Mihalcea author Mihai Surdeanu author Răzvan Bunescu author Roxana Gîrju author Vasile Rus author Paul Morărescu author 2001-07 text Proceedings of the 39th Annual Meeting of the Association for Computational Linguistics Association for Computational Linguistics Toulouse, France conference publication harabagiu-etal-2001-role 10.3115/1073012.1073049 https://aclanthology.org/P01-1037/ 2001-07 282 289