Relation Extraction with Weighted Contrastive Pre-training on Distant Supervision Zhen Wan author Fei Cheng author Qianying Liu author Zhuoyuan Mao author Haiyue Song author Sadao Kurohashi author 2023-05 text Findings of the Association for Computational Linguistics: EACL 2023 Andreas Vlachos editor Isabelle Augenstein editor Association for Computational Linguistics Dubrovnik, Croatia conference publication wan-etal-2023-relation 10.18653/v1/2023.findings-eacl.195 https://aclanthology.org/2023.findings-eacl.195/ 2023-05 2580 2585