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Kernel’s Parameter Selection for Support Vector Domain Description

Authors: Mohamed EL Boujnouni, Mohamed Jedra, Noureddine Zahid


Support Vector Domain Description (SVDD) is one of the best-known one-class support vector learning methods, in which one tries the strategy of using balls defined on the feature space in order to distinguish a set of normal data from all other possible abnormal objects. As all kernel-based learning algorithms its performance depends heavily on the proper choice of the kernel parameter. This paper proposes a new approach to select kernel's parameter based on maximizing the distance between both gravity centers of normal and abnormal classes, and at the same time minimizing the variance within each class. The performance of the proposed algorithm is evaluated on several benchmarks. The experimental results demonstrate the feasibility and the effectiveness of the presented method.

Keywords: variance, Gravity centers, Kernel’s parameter, Support Vector Domain Description

Digital Object Identifier (DOI):

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