Interpretability-Guided Test-Time Adversarial Defense
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Abstract (arXiv)
We propose a novel and low-cost test-time adversarial defense by devising interpretability-guided neuron importance ranking methods to identify neurons important to the output classes. Our method is a training-free approach that can significantly improve the robustness-accuracy tradeoff while incurring minimal computational overhead. While being among the most efficient test-time defenses (4x faster), our method is also robust to a wide range of black-box, white-box, and adaptive attacks that break previous test-time defenses. We demonstrate the efficacy of our method for CIFAR10, CIFAR100, and ImageNet-1k on the standard RobustBench benchmark (with average gains of 2.6%, 4.9%, and 2.8% respectively). We also show improvements (average 1.5%) over the state-of-the-art test-time defenses even under strong adaptive attacks.
Key facts. Cited by 3 papers in the map (data through 7 Oct 2026). Builds on 48 of its 59 references that are in the map. First posted on arXiv 23 Sep 2024.
Builds on
48 of 59 references.
References · 48
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36 more
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Citing papers per year: 2025: 2; 2026: 1.
3 papers.
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- 2026A Provable Energy-Guided Test-Time Defense Boosting Adversarial Robustness of Large Vision-Language Models27 Mar 2026
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