Open Set Relation Extraction via Unknown-Aware Training Jun Zhao author Xin Zhao author WenYu Zhan author Qi Zhang author Tao Gui author Zhongyu Wei author Yun Wen Chen author Xiang Gao author Xuanjing Huang 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 zhao-etal-2023-open 10.18653/v1/2023.acl-long.525 https://aclanthology.org/2023.acl-long.525/ 2023-07 9453 9467