optimizing the kernel selection for support vector machines using performance measures
Support Vector Machine (SVM) is a powerful classification technique based on the idea of Structural Risk Minimization. The main idea behind the Support Vector Machine is to separate the classes with a surface that maximizes the margin between them. Key Property of SVM is Kernels. However, a proper Kernel Function for a certain problem is dependent on the specific dataset and as such there is no good method on how to choose a Kernel Function. In this paper, the choice of the Kernel Function is studied empirically and optimal results are achieved. The performance of the SVM is illustrated by extensive experimental results, which indicate that with suitable Kernel and its parameters, better classification rate, Error Rate, Support Vectors and Support Vector percentage can be obtained. The experimental results of the three datasets show that opting a kernel in random is not always the best choice to achieve high generalization of classifier although it is often the default choice.
support vectors support vector machine kernel function mercer kernels pattern classification