Fuzzy SVM with a New Fuzzy Membership Function to Solve the Two-Class Problems |
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Authors: | Wan Mei Tang |
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Affiliation: | (1) Computational Intelligence Laboratory, School of Computer Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 610054, People’s Republic of China; |
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Abstract: | In dealing with the Two-Class classification problems, the traditional support vector machine (SVM) often cannot achieve good
classification accuracy when outliers exist in the training data set. The fuzzy support vector machine (FSVM) can resolve
this problem with an appropriate fuzzy membership for each data point. The effect of the outliers can be effectively reduced
when the classification problem is solved. In this paper, a new fuzzy membership function is employed in the linear and nonlinear
fuzzy support vector machine respectively. The fuzzy membership is calculated based on the structural information of two classes
in the input space and in the feature space. This method can distinguish the support vectors and the outliers effectively.
Experimental results show that this approach contributes greatly to the reduction of the effect of the outliers and significantly
improves the classification accuracy and generalization. |
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Keywords: | |
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