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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Le-Peng Bi Hao Huang Zhi-Yun Zheng Han-Tao Song |
| Copyright Year | 2005 |
| Description | Author affiliation: Dept. of Comput. Sci. & Eng., Beijing Inst. of Technol., China (Le-Peng Bi; Hao Huang; Zhi-Yun Zheng; Han-Tao Song) |
| Abstract | For SVM using Gaussian kernel, it was known that parameter /spl sigma/ changing from infinity to zero corresponds SVM model performing severe under-fitting to severe over-fitting. In this paper, we theoretically investigated the correspondence between Gaussian kernel's parameter and support vectors' distribution, interesting result was found: with /spl sigma/'s changing from big to small, the samples nearest to other class first become support vectors, then nearest and farthest ones, finally all samples become support vectors. Then we proposed a new heuristic algorithm based on Zhangling et al.'s boundary points theory for selecting Gaussian kernel's parameter. Experimental results showed this heuristic performed well on selecting a suitable a for Gaussian kernel. |
| Sponsorship | IEEE Syst., Man and Cybernetics Tech. Comm. on Cybernetics, Hong Kong Polytechnic Univ. Hebei Univ. South China Univ. Chongqing Univ. Sun Yat-sen Univ. Harbin Inst. of Technol. and Int. Univ. in Germany |
| Starting Page | 4299 |
| Ending Page | 4304 |
| File Size | 437785 |
| Page Count | 6 |
| File Format | |
| ISBN | 0780390911 |
| DOI | 10.1109/ICMLC.2005.1527693 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2005-08-18 |
| Publisher Place | China |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Kernel Support vector machines Support vector machine classification Quadratic programming Training data Bismuth Computer science Educational institutions Electronic mail H infinity control parameter selection Svm Gaussian kernel support vectors’ distribution |
| Content Type | Text |
| Resource Type | Article |
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