Multi-Hop Open-Domain Question Answering over Structured and Unstructured Knowledge Yue Feng author Zhen Han author Mingming Sun author Ping Li author 2022-07 text Findings of the Association for Computational Linguistics: NAACL 2022 Marine Carpuat editor Marie-Catherine de Marneffe editor Ivan Vladimir Meza Ruiz editor Association for Computational Linguistics Seattle, United States conference publication feng-etal-2022-multi 10.18653/v1/2022.findings-naacl.12 https://aclanthology.org/2022.findings-naacl.12/ 2022-07 151 156