What is the default setting for SVM in weka?

Question

I would like to know what is the default setting for SVM of weka library?. As I know Weka wraps LIVSVM and the default parameter for LIBSVM is the rbf kernel, does this holds true for weka?.

Answer 1

Yes, the default kernel is RBF with gamma equal to 1/k. See other defaults in javadocs here or here.

NB: Weka contains its own implementation - SMO, but it also provides wrapper for libsvm, and "LibSVM runs faster than SMO" (note that it requires installed libsvm, see docs).