Catalano.Statistics.Kernels

Class TStudent

java.lang.Object

Catalano.Statistics.Kernels.TStudent

All Implemented Interfaces:

IMercerKernel<double[]>, java.io.Serializable

public class TStudent
extends java.lang.Object
implements IMercerKernel<double[]>

Generalized T-Student Kernel. The Generalized T-Student Kernel is a Mercer Kernel and thus forms a positive semi-definite Kernel matrix (Boughorbel, 2004).

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
TStudent() Constructs a new TStudent kernel.
TStudent(int degree) Constructs a new TStudent kernel.

Method Summary

Modifier and Type	Method and Description
double	Function(double[] x, double[] y) The kernel function.
int	getDegree() Gets the degree of this kernel.
void	setDegree(int degree) Set the degree of this kernel.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

TStudent

public TStudent()

Constructs a new TStudent kernel.

TStudent

public TStudent(int degree)

Constructs a new TStudent kernel.

Parameters:

degree - Degree.

Method Detail

getDegree

public int getDegree()

Gets the degree of this kernel.

Returns:

Degree.

setDegree

public void setDegree(int degree)

Set the degree of this kernel.

Parameters:

degree - Degree.

Function

public double Function(double[] x,
                       double[] y)

Description copied from interface: IMercerKernel

The kernel function.

Specified by:

Function in interface IMercerKernel<double[]>

Parameters:

x - Vector x in input space.

y - Vector y in input space.

Returns:

Dot product in feature (kernel) space.