Retrieval-guided Counterfactual Generation for QA Bhargavi Paranjape author Matthew Lamm author Ian Tenney author 2022-05 text Proceedings of the 60th Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers) Smaranda Muresan editor Preslav Nakov editor Aline Villavicencio editor Association for Computational Linguistics Dublin, Ireland conference publication paranjape-etal-2022-retrieval 10.18653/v1/2022.acl-long.117 https://aclanthology.org/2022.acl-long.117/ 2022-05 1670 1686