Catalano.Statistics.Kernels

Class ChiSquare

java.lang.Object

Catalano.Statistics.Kernels.ChiSquare

All Implemented Interfaces:

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

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

Chi-Square Kernel. The Chi-Square kernel comes from the Chi-Square distribution.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
ChiSquare() Constructs a new Chi-Square kernel.

Method Summary

Modifier and Type	Method and Description
double	Function(double[] x, double[] y) The kernel function.

Methods inherited from class java.lang.Object

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

Constructor Detail

ChiSquare

public ChiSquare()

Constructs a new Chi-Square kernel.

Method Detail

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.