Backdoors on Manifold Learning
Christina Kreza (Radboud Universiteit Nijmegen)
Stefanos Koffas (TU Delft - Cyber Security)
Behrad Tajalli (Radboud Universiteit Nijmegen)
Mauro Conti (Università degli Studi di Padova, TU Delft - Cyber Security)
Stjepan Picek (TU Delft - Cyber Security, Radboud Universiteit Nijmegen)
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Abstract
Recently, attackers have targeted machine learning systems, introducing various attacks. The backdoor attack is popular in this field and is usually realized through data poisoning. To the best of our knowledge, we are the first to investigate whether the backdoor attacks remain effective when manifold learning algorithms are applied to the poisoned dataset. We conducted our experiments using two manifold learning techniques (Autoencoder and UMAP) on two benchmark datasets (MNIST and CIFAR10) and two backdoor strategies (clean and dirty label). We performed an array of experiments using different parameters, finding that we could reach an attack success rate of 95% and 75% even after reducing our data to two dimensions using Autoencoders and UMAP, respectively.
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