Skip to yearly menu bar Skip to main content


Poster

Few-Shot Adversarial Prompt Learning on Vision-Language Models

Yiwei Zhou · Xiaobo Xia · Zhiwei Lin · Bo Han · Tongliang Liu

[ ]
Wed 11 Dec 4:30 p.m. PST — 7:30 p.m. PST

Abstract:

The vulnerability of deep neural networks to imperceptible adversarial perturbations has attracted widespread attention. Inspired by the success of vision-language foundation models, previous efforts achieved zero-shot adversarial robustness by aligning adversarial visual features with text supervision. However, in practice, they are still unsatisfactory due to several issues, including heavy adaptation cost, suboptimal text supervision, and uncontrolled natural generalization capacity. In this paper, to address these issues, we propose a few-shot adversarial prompt framework where adapting input sequences with limited data makes significant adversarial robustness improvement. Specifically, we achieve this by providing adversarially correlated text supervision that is end-to-end learned from adversarial examples. We also propose a novel training objective that enhances the consistency of multi-modal features while encourages differentiated uni-modal features between natural and adversarial examples. The proposed framework gives access to learn adversarial text supervision, which provides superior cross-modal adversarial alignment and matches state-of-the-art zero-shot adversarial robustness with only 1\% training data.

Live content is unavailable. Log in and register to view live content