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Jie Zhang

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#small language model Preprint Sep 2026

Backdoor as Probe: Test-Time Adversarial Defense for CLIP

Backdoor as Probe is proposed, a test-time adversarial defense for CLIP that improves average robust accuracy from 1.0\% to 52.3\% while retaining clean accuracy, achieving performance comparable to state-of-the-art methods with up to a \(5.7\times\) inference speedup.

Zhong Ling Wang, Jie Zhang, Sen Nie et al. · 0 citations
Jul 2026

Dual Adversarial Fine-tuning for Enhancing Robustness of Large Vision Language Model

While Large Vision-Language Models (LVLMs), represented by LLaVA and GPT-4V, have demonstrated remarkable capabilities, their visual inputs remain vulnerable to adversarial attacks, posing significant security risks. Existing defense methods predominantly target single-task scenarios (e.g., zero-shot classification) an...

Sibo Wang, Jie Zhang, Shiguang Shan et al. · 0 citations

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