Contrastive Fine-tuning Improves Robustness for Neural Rankers Xiaofei Ma author Cicero Nogueira dos Santos author Andrew O Arnold author 2021-08 text Findings of the Association for Computational Linguistics: ACL-IJCNLP 2021 Chengqing Zong editor Fei Xia editor Wenjie Li editor Roberto Navigli editor Association for Computational Linguistics Online conference publication ma-etal-2021-contrastive 10.18653/v1/2021.findings-acl.51 https://aclanthology.org/2021.findings-acl.51/ 2021-08 570 582