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Erschienen in:
2009 | OriginalPaper | Buchkapitel
Ensembles of One Class Support Vector Machines
verfasst von : Albert D. Shieh, David F. Kamm
Erschienen in: Multiple Classifier Systems
Verlag: Springer Berlin Heidelberg
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The one class support vector machine (OCSVM) is a widely used approach to one class classification, the problem of distinguising one class of data from the rest of the feature space. However, even with optimal parameter selection, the OCSVM can be sensitive to overfitting in the presence of noise. Bagging is an ensemble method that can reduce the influence of noise and prevent overfitting. In this paper, we propose a bagging OCSVM using kernel density estimation to decrease the weight given to noise. We demonstrate the improved performance of the bagging OCSVM on both simulated and real world data sets.