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Defense-GAN: Protecting Classifiers Against Adversarial Attacks Using Generative Models

10 Pith papers cite this work. Polarity classification is still indexing.

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abstract

In recent years, deep neural network approaches have been widely adopted for machine learning tasks, including classification. However, they were shown to be vulnerable to adversarial perturbations: carefully crafted small perturbations can cause misclassification of legitimate images. We propose Defense-GAN, a new framework leveraging the expressive capability of generative models to defend deep neural networks against such attacks. Defense-GAN is trained to model the distribution of unperturbed images. At inference time, it finds a close output to a given image which does not contain the adversarial changes. This output is then fed to the classifier. Our proposed method can be used with any classification model and does not modify the classifier structure or training procedure. It can also be used as a defense against any attack as it does not assume knowledge of the process for generating the adversarial examples. We empirically show that Defense-GAN is consistently effective against different attack methods and improves on existing defense strategies. Our code has been made publicly available at https://github.com/kabkabm/defensegan

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representative citing papers

Low Rank Adaptation for Adversarial Perturbation

cs.LG · 2026-04-30 · unverdicted · novelty 7.0

Adversarial perturbations possess an inherently low-rank structure that enables more efficient and effective black-box adversarial attacks via subspace projection.

Latent Adversarial Defence with Boundary-guided Generation

cs.LG · 2019-07-16 · unverdicted · novelty 5.0

LAD generates diverse adversarial examples in latent space by perturbing along normals to an SVM-defined decision boundary and uses them for adversarial training to improve DNN robustness.

Affine Disentangled GAN for Interpretable and Robust AV Perception

cs.CV · 2019-07-06 · unverdicted · novelty 5.0

ADIS-GAN disentangles affine transformations in a GAN to achieve over 98% classification accuracy on MNIST within 30 degrees rotation and over 90% under FGSM and PGD attacks while generating rotation and scaling factors.

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