Black-Box Tuning of Vision-Language Models with Effective Gradient Approximation Zixian Guo author Yuxiang Wei author Ming Liu author Zhilong Ji author Jinfeng Bai author Yiwen Guo author Wangmeng Zuo author 2023-12 text Findings of the Association for Computational Linguistics: EMNLP 2023 Houda Bouamor editor Juan Pino editor Kalika Bali editor Association for Computational Linguistics Singapore conference publication guo-etal-2023-black 10.18653/v1/2023.findings-emnlp.356 https://aclanthology.org/2023.findings-emnlp.356/ 2023-12 5356 5368