Comments (3)
This method is not specified to multi-class problems. In a binary case, there will be only 1 adversarial class, which leads this method to a form similar to IG, except that IG requires a straightline path and a starting reference point, this AGI method is still able to automatically find a path.
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Thank you for your answer, that is what I thought but I wasn't sure.
Anyway thank you for your work, I managed to get some pretty amazing results with this method that I could not get with classical IG.
One last question, is it normal that on the following lines the delta
is not normalized?
Lines 89 to 90 in 4b28c8b
According to the algorithm below, I would expect something like delta = epsilon * (data_grad_adv / grad_lab_norm).sign()
(especially as it seems that the variable grad_lab_norm
is not used anywhere).
There could be an issue when the gradient is zero, but it could be solved by clipping the norm to some small value:
delta = epsilon * (data_grad_adv / torch.clamp(grad_lab_norm, min=1e-8)).sign()
from agi.
Thank you for your answer, that is what I thought but I wasn't sure.
Anyway thank you for your work, I managed to get some pretty amazing results with this method that I could not get with classical IG.
One last question, is it normal that on the following lines the
delta
is not normalized?Lines 89 to 90 in 4b28c8b
According to the algorithm below, I would expect something like
delta = epsilon * (data_grad_adv / grad_lab_norm).sign()
(especially as it seems that the variablegrad_lab_norm
is not used anywhere).There could be an issue when the gradient is zero, but it could be solved by clipping the norm to some small value:
delta = epsilon * (data_grad_adv / torch.clamp(grad_lab_norm, min=1e-8)).sign()
Yes! You're correct. But since we only take the sign, it shouldn't cause any differences. Your suggestion should also work.
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