kernel_metrics#

sklearn.metrics.pairwise.kernel_metrics()[source]#

Valid metrics for pairwise_kernels.

This function simply returns the valid pairwise distance metrics. It exists, however, to allow for a verbose description of the mapping for each of the valid strings.

The valid distance metrics, and the function they map to, are:

metric

Function

โ€˜additive_chi2โ€™

sklearn.pairwise.additive_chi2_kernel

โ€˜chi2โ€™

sklearn.pairwise.chi2_kernel

โ€˜linearโ€™

sklearn.pairwise.linear_kernel

โ€˜polyโ€™

sklearn.pairwise.polynomial_kernel

โ€˜polynomialโ€™

sklearn.pairwise.polynomial_kernel

โ€˜rbfโ€™

sklearn.pairwise.rbf_kernel

โ€˜laplacianโ€™

sklearn.pairwise.laplacian_kernel

โ€˜sigmoidโ€™

sklearn.pairwise.sigmoid_kernel

โ€˜cosineโ€™

sklearn.pairwise.cosine_similarity

Read more in the User Guide.

Returns:
kernel_metricsdict

Returns valid metrics for pairwise_kernels.