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sklearn.metrics.pairwise.sigmoid_kernel(X, Y=None, gamma=None, coef0=1)
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Compute the sigmoid kernel between X and Y:
K(X, Y) = tanh(gamma <X, Y> + coef0)
Read more in the User Guide.
Parameters: X : ndarray of shape (n_samples_1, n_features)
Y : ndarray of shape (n_samples_2, n_features)
gamma : float, default None
If None, defaults to 1.0 / n_samples_1
coef0 : int, default 1
Returns: Gram matrix : array of shape (n_samples_1, n_samples_2)
sklearn.metrics.pairwise.sigmoid_kernel()
2017-01-15 04:26:37
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