Sigmoid kernel
The Sigmoid kernel is a popular kernel function
used in kernelized learning algorithms.
Operation | Computational methods | Programming Interface |
Mathematical formulation
Computing
Given a set 
of 
feature vectors 
of dimension 
and a set 
of 
feature vectors 
,
the problem is to compute the sigmoid kernel function 
for any pair of input vectors:
of feature vectors
of dimension and a set of
feature vectors ,
the problem is to compute the sigmoid kernel function for any pair of input vectors:
where 
.
.Computation method:
dense
The method computes the sigmoid kernel function 
for
and matrices.
for
and matrices.Programming Interface
Refer to API Reference: Sigmoid kernel.