What is the default kernel in SVM regression using the svm command, and in most other SVM commands?
A) Linear
B) Polynomial
C) Sigmoid
D) Radial

Question

Quizplus · Accepted Answer

Also called the radial basis function (RBF) or Gaussian kernel, this type of kernel has similarities to the algorithm for RBF neural networks. This is the default kernel in the svm command of the e1071 package. With a radial kernel the researcher is assuming that data may be separated better by circles and hyperspheres than by straight lines and hyperplanes.

What Is the Default Kernel in SVM Regression Using the Svm