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===Fast Gradient Sign Method=== | ===Fast Gradient Sign Method=== | ||
The fast gradient sign method (FGSM) | The fast gradient sign method (FGSM) uses the sign of the gradient times a unit vector as the perturbation.<br> | ||
This was proposed by Ian Goodfellow in his paper.<br> | This was proposed by Ian Goodfellow in his paper.<br> | ||
===Projected Gradient Descent=== | ===Projected Gradient Descent=== | ||
Basic idea: Do gradient descent. If you go too far from your example, project it back into your perturbation range.<br> | Basic idea: Do gradient descent. If you go too far from your example, project it back into your perturbation range.<br> |