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A consistency-based model selection for one-class classification

: Tax, D.M.J.; Müller, K.-R.

Kittler, J.:
Proceedings of the 17th International Conference on Pattern Recognition. Vol.3 : August 23 - 26, 2004, Cambridge, UK
Piscataway: IEEE Computer Society, 2004
ISBN: 0-7695-2128-2
ISSN: 1051-4651
International Conference on Pattern Recognition (ICPR) <17, 2004, Cambridge>
Conference Paper
Fraunhofer FIRST ()

Model selection in unsupervised learning is a hard problem. In this paper a simple selection criterion for hyperparameters in one-class classifiers (OCCs) is proposed. It makes use of the particular structure of the one-class problem. The mean idea is that the complexity of the classifier is increased until the classifier becomes inconsistent on the target class. This defines the most complex classifier which can still reliably be trained on the data. Experiments indicated the usefulness of the approach.