A Novel Automatic Parameters Optimization Approach Based on Differential Evolution for Support Vector Regression

  • Authors:
  • Jiewei Li;Zhihua Cai

  • Affiliations:
  • Department of Computer Science, China University of Geosciences, Wuhan, China;Department of Computer Science, China University of Geosciences, Wuhan, China

  • Venue:
  • ISICA '08 Proceedings of the 3rd International Symposium on Advances in Computation and Intelligence
  • Year:
  • 2008

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Abstract

An appropriate parameters selection can significantly affect the accuracy of support vector regression (SVR) model. In this paper, a new evolutionary approach based on Differential Evolution (DE-SVR) is developed to train the SVR model. The approach evolves automatically the optimal model parameters by the differential mutation operations. Experimental results on several real-world datasets demonstrate that, comparing with the GA-based SVR and the Grid search methods, the DE-SVR can search the optimal parameters much more rapidly with less training time to build the SVR model, and has the comparable prediction accuracy as Grid search, even better than GA-based SVR. Therefore, the new evolutionary DE-SVM approach is an efficient method for automatic parameter determination of SVR problem.