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Implementation of our NeurIPS 2019 paper: Subspace Attack: Exploiting Promising Subspaces for Query-Efficient Black-box Attacks
The success_query_all
is initialized as success_query_all = torch.zeros_like(query_all)
in
https://github.com/ZiangYan/subspace-attack.pytorch/blob/master/attack.py#L264
But after initialization, it never changes, in the final statistics result report as shown in :
https://github.com/ZiangYan/subspace-attack.pytorch/blob/master/attack.py#L514
How does success_query_all
change to the real statistics result?
I found a bug of computing the attack failure rate
, because in
https://github.com/ZiangYan/subspace-attack.pytorch/blob/master/attack.py#L512
you directly use not_done_all.mean().item()
as the failure rate.
However, due to bandits attack's code:
https://github.com/MadryLab/blackbox-bandits/blob/master/src/main.py#L178
You miss the case that some benign images are already misclassified by the classifier before attacking. The attack success rate
or failure rate
should use the correctly classified images to calculate. You must remove/filter these misclassified clean images in the computation. Thus, your paper's failure rate is not correct strictly speaking, unless all 1000 images are already correctly classified by the victim model.
Also, the code of https://github.com/thu-ml/Prior-Guided-RGF/blob/master/attack.py#L372
supports my suggestion.
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