Deep One-Class Classification

Lukas Ruff, Robert Vandermeulen, Nico Goernitz, Lucas Deecke, Muhammad Shoaib Ahmed Siddiqui, Alexander Binder, Emmanuel Müller, Marius Kloft

In: International Conference on Machine Learning (ICML-2018). International Conference on Machine Learning (ICML-2018) Proceedings of Machine Learning Research 2018.


Despite the great advances made by deep learning in many machine learning problems, there is a relative dearth of deep learning approaches for anomaly detection. Those approaches which do exist involve networks trained to perform a task other than anomaly detection, namely generative models or compression, which are in turn adapted for use in anomaly detection; they are not trained on an anomaly detection based objective. In this paper we introduce a new anomaly detection method—Deep Support Vector Data Description—, which is trained on an anomaly detection based objective. The adaptation to the deep regime necessitates that our neural network and training procedure satisfy certain properties, which we demonstrate theoretically. We show the effectiveness of our method on MNIST and CIFAR-10 image benchmark datasets as well as on the detection of adversarial examples of GTSRB stop signs.

German Research Center for Artificial Intelligence
Deutsches Forschungszentrum für Künstliche Intelligenz