HacRED: A Large-Scale Relation Extraction Dataset Toward Hard Cases in Practical Applications Q Cheng, J Liu, X Qu, J Zhao, J Liang, Z Wang, B Huai, NJ Yuan, Y Xiao Findings of the Association for Computational Linguistics: ACL-IJCNLP 2021 …, 2021 | 50 | 2021 |