SF-QA: Simple and Fair Evaluation Library for Open-domain Question Answering Xiaopeng Lu author Kyusong Lee author Tiancheng Zhao author 2021-04 text Proceedings of the 16th Conference of the European Chapter of the Association for Computational Linguistics: System Demonstrations Dimitra Gkatzia editor Djamé Seddah editor Association for Computational Linguistics Online conference publication lu-etal-2021-sf 10.18653/v1/2021.eacl-demos.2 https://aclanthology.org/2021.eacl-demos.2/ 2021-04 7 13