Multi-Hop Paragraph Retrieval for Open-Domain Question Answering Yair Feldman author Ran El-Yaniv author 2019-07 text Proceedings of the 57th Annual Meeting of the Association for Computational Linguistics Anna Korhonen editor David Traum editor Lluís Màrquez editor Association for Computational Linguistics Florence, Italy conference publication feldman-el-yaniv-2019-multi 10.18653/v1/P19-1222 https://aclanthology.org/P19-1222/ 2019-07 2296 2309