Phrase Retrieval for Open Domain Conversational Question Answering with Conversational Dependency Modeling via Contrastive Learning Soyeong Jeong author Jinheon Baek author Sung Ju Hwang author Jong Park author 2023-07 text Findings of the Association for Computational Linguistics: ACL 2023 Anna Rogers editor Jordan Boyd-Graber editor Naoaki Okazaki editor Association for Computational Linguistics Toronto, Canada conference publication jeong-etal-2023-phrase 10.18653/v1/2023.findings-acl.374 https://aclanthology.org/2023.findings-acl.374/ 2023-07 6019 6031