Simple and Effective Knowledge-Driven Query Expansion for QA-Based Product Attribute Extraction Keiji Shinzato author Naoki Yoshinaga author Yandi Xia author Wei-Te Chen author 2022-05 text Proceedings of the 60th Annual Meeting of the Association for Computational Linguistics (Volume 2: Short Papers) Smaranda Muresan editor Preslav Nakov editor Aline Villavicencio editor Association for Computational Linguistics Dublin, Ireland conference publication shinzato-etal-2022-simple 10.18653/v1/2022.acl-short.25 https://aclanthology.org/2022.acl-short.25/ 2022-05 227 234