Hierarchical Representations in Dense Passage Retrieval for Question-Answering Philipp Ennen author Federica Freddi author Chyi-Jiunn Lin author Po-Nien Kung author RenChu Wang author Chien-Yi Yang author Da-shan Shiu author Alberto Bernacchia author 2023-05 text Proceedings of the Sixth Fact Extraction and VERification Workshop (FEVER) Mubashara Akhtar editor Rami Aly editor Christos Christodoulopoulos editor Oana Cocarascu editor Zhijiang Guo editor Arpit Mittal editor Michael Schlichtkrull editor James Thorne editor Andreas Vlachos editor Association for Computational Linguistics Dubrovnik, Croatia conference publication ennen-etal-2023-hierarchical 10.18653/v1/2023.fever-1.2 https://aclanthology.org/2023.fever-1.2/ 2023-05 17 28