Event-Centric Query Expansion in Web Search Yanan Zhang author Weijie Cui author Yangfan Zhang author Xiaoling Bai author Zhe Zhang author Jin Ma author Xiang Chen author Tianhua Zhou author 2023-07 text Proceedings of the 61st Annual Meeting of the Association for Computational Linguistics (Volume 5: Industry Track) Sunayana Sitaram editor Beata Beigman Klebanov editor Jason D Williams editor Association for Computational Linguistics Toronto, Canada conference publication zhang-etal-2023-event 10.18653/v1/2023.acl-industry.45 https://aclanthology.org/2023.acl-industry.45/ 2023-07 464 475