Effective Contrastive Weighting for Dense Query Expansion Xiao Wang author Sean MacAvaney author Craig Macdonald author Iadh Ounis author 2023-07 text Proceedings of the 61st Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers) Anna Rogers editor Jordan Boyd-Graber editor Naoaki Okazaki editor Association for Computational Linguistics Toronto, Canada conference publication wang-etal-2023-effective 10.18653/v1/2023.acl-long.710 https://aclanthology.org/2023.acl-long.710/ 2023-07 12688 12704