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Making Substitute Models More Bayesian Can Enhance Transferability of Adversarial Examples

ICLR 2023 · Adversarial robustness and security › Black-box and transfer attacks · approach: Transferable adversarial examples · 5 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
Attack a Bayesian substitute using an isotropic posterior rather than a deterministic model (ablation)ResNet-18 with I-FGSM · CIFAR-10, six victim modelsaverage attack success rate: 43.06% -> 57.36%Helped
Add finetuning to the isotropic Bayesian substitute (ablation)ResNet-18 with I-FGSM · CIFAR-10, six victim modelsaverage attack success rate: 57.36% -> 78.98%Helped
Use SWAG to improve the posterior approximation (ablation)Finetuned isotropic Bayesian substitute with I-FGSM · CIFAR-10, six victim modelsaverage attack success rate: 78.98% -> 83.38%Helped
Attack a Bayesian substitute using an isotropic posterior rather than a deterministic model (ablation)ResNet-50 with I-FGSM · ImageNet, ten victim modelsaverage attack success rate: 27.69% -> 51.06%Helped
Add finetuning to the isotropic Bayesian substitute (ablation)ResNet-50 with I-FGSM · ImageNet, ten victim modelsaverage attack success rate: 51.06% -> 81.43%Helped
Use SWAG to improve the posterior approximation (ablation)Finetuned isotropic Bayesian substitute with I-FGSM · ImageNet, ten victim modelsaverage attack success rate: 81.43% -> 91.33%Helped
Combine the Bayesian substitute method with ILA++I-FGSM transfer attack · ImageNet, eleven victim modelsaverage attack success rate: 62.89% -> 94.65%Helped
Combine the Bayesian substitute method with SVREI-FGSM transfer attack · ImageNet, seven victim modelsaverage attack success rate: 57.52% -> 93.69%Helped
Increase the number of sampled substitute models (ablation)Bayesian substitute attack · ImageNetaverage attack success rateHelped
Use a diagonal covariance rather than diagonal plus low-rank covariance for SWAG (ablation)SWAG Bayesian substitute · CIFAR-10 and ImageNetattack success rateNo clear effect

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