Discrete Prompt Optimization via Constrained Generation for Zero-shot Re-ranker Sukmin Cho author Soyeong Jeong author Jeong yeon Seo author Jong Park author 2023-07 text Findings of the Association for Computational Linguistics: ACL 2023 Anna Rogers editor Jordan Boyd-Graber editor Naoaki Okazaki editor Association for Computational Linguistics Toronto, Canada conference publication cho-etal-2023-discrete 10.18653/v1/2023.findings-acl.61 https://aclanthology.org/2023.findings-acl.61/ 2023-07 960 971