sklearn.metrics.pairwise.sigmoid_kernel(X, Y=None, gamma=None, coef0=1)
[source]
Compute the sigmoid kernel between X and Y:
K(X, Y) = tanh(gamma <X, Y> + coef0)
Read more in the User Guide.
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Licensed under the 3-clause BSD License.
http://scikit-learn.org/stable/modules/generated/sklearn.metrics.pairwise.sigmoid_kernel.html