Inproceedings,

Genetically designed multiple-kernels for improving the SVM performance

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GECCO '07: Proceedings of the 9th annual conference on Genetic and evolutionary computation, 2, page 1873--1873. London, ACM Press, (7-11 July 2007)

Abstract

Classical kernel-based classifiers only use a single kernel, but the real-world applications have emphasised the need to consider a combination of kernels - also known as a multiple kernel - in order to boost the performance. Our purpose is to automatically find the mathematical expression of a multiple kernel by evolutionary means. In order to achieve this purpose we propose a hybrid model that combines a Genetic Programming (GP) algorithm and a kernel-based Support Vector Machine (SVM) classifier. Each GP chromosome is a tree encoding the mathematical expression of a multiple kernel. Numerical experiments show that the SVM embedding the evolved multiple kernel performs better than the standard kernels for the considered classification problems.

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