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2019 Chinese Control And Decision Conference (CCDC) - Towards support vector data description based on heuristic sample condensed rule by Qu, Hua; Zhao, Jianlong; Zhao, Jihong; Jiang, Dingchao is a scholarly article available to read on EtoBox.

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Support vector data description (SVDD) is a well-known kernel-based one-class classification method that exhibits intrinsic regularization ability and robustness versus low numbers of high-dimensional samples. However, the efficiency of SVDD is limited by the cubic time complexity. To solve this problem, this paper first investigates the effect of selecting a reduced subset as the training set of SVDD, while guaranteeing the classification quality. To this end, a new heuristic sample condensed rule, termed HSC, is proposed to accurately identify those potential support vectors that characterize the classification boundary. HSC can consider both the spatial distribution and local density features of training samples, and focus on selecting samples very close to the decision boundary. When dealing with the local density computation, we introduce the idea of K nearest neighbors (KNN) to examine the density of samples in the neighbors of the object to be classified. Finally, a condensed but informative subset obtained by HSC will be applied to train SVDD breezily. The experimental results show that HSC-based SVDD sensibly improves over conventional SVDD, in terms of the size of the tra

Author

Qu, Hua; Zhao, Jianlong; Zhao, Jihong; Jiang, Dingchao

Publisher

IEEE

Published

2019

Language

EN