mvpa2.kernels.sg.RbfSGKernel

class mvpa2.kernels.sg.RbfSGKernel(**kwargs)

Radial basis function: K(a,b) = exp(-||a-b||**2/sigma)

Methods

as_raw_sg()
as_sg()

Initialize instance of RbfSGKernel

Parameters:

sigma :

Width/division parameter for gaussian kernel. [Default: 1]

normalizer_cls : sg.Kernel.CKernelNormalizer

Class to use as a normalizer for the kernel. Will be instantiated upon compute(). Only supported for shogun >= 0.6.5. By default (if left None) assigns IdentityKernelNormalizer to assure no normalization.

normalizer_args : None or list

If necessary, provide a list of arguments for the normalizer.

Methods

as_raw_sg()
as_sg()