edu.udo.cs.yale.operator.learner.kernel.evosvm
Class PolynomialKernel

java.lang.Object
  edu.udo.cs.yale.operator.learner.kernel.evosvm.Kernel
      edu.udo.cs.yale.operator.learner.kernel.evosvm.PolynomialKernel

public class PolynomialKernel
extends Kernel

Returns the value of a Polynomial kernel of both examples.

Version:

$Id: PolynomialKernel.java,v 1.6 2006/08/28 12:32:58 ingomierswa Exp $

Author:

Ingo Mierswa

Field Summary

private double	degree The parameter degree of the polynomial kernel.
private double	shift The parameter shift of the polynomial kernel.

Fields inherited from class edu.udo.cs.yale.operator.learner.kernel.evosvm.Kernel

KERNEL_DOT, KERNEL_EPANECHNIKOV, KERNEL_GAUSSIAN_COMBINATION, KERNEL_MULTIQUADRIC, KERNEL_POLYNOMIAL, KERNEL_RADIAL, KERNEL_SIGMOID, KERNEL_TYPES

Constructor Summary

PolynomialKernel()

Method Summary

double	calculateDistance(double[] x1, double[] x2) Subclasses must implement this method.
double	getDegree()
int	getType() Must return one out of KERNEL_DOT, KERNEL_RADIAL, KERNEL_POLYNOMIAL, or KERNEL_SIGMOID.
void	readKernelParameters(java.io.ObjectInputStream in) Does nothing.
void	setPolynomialParameters(double degree, double shift) Sets the used polynomial parameters.
void	writeKernelParameters(java.io.ObjectOutputStream out) Does nothing.

Methods inherited from class edu.udo.cs.yale.operator.learner.kernel.evosvm.Kernel

createKernel, createKernel, getDistance, getSum, init, innerProduct, norm2, readKernelData, writeKernelData

Methods inherited from class java.lang.Object

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

Field Detail

degree

private double degree

The parameter degree of the polynomial kernel.

shift

private double shift

The parameter shift of the polynomial kernel.

Constructor Detail

PolynomialKernel

public PolynomialKernel()

Method Detail

getType

public int getType()

Description copied from class: Kernel

Must return one out of KERNEL_DOT, KERNEL_RADIAL, KERNEL_POLYNOMIAL, or KERNEL_SIGMOID.

Specified by:

getType in class Kernel

getDegree

public double getDegree()

setPolynomialParameters

public void setPolynomialParameters(double degree,
                                    double shift)

Sets the used polynomial parameters.

calculateDistance

public double calculateDistance(double[] x1,
                                double[] x2)

Subclasses must implement this method.

Specified by:

calculateDistance in class Kernel

readKernelParameters

public void readKernelParameters(java.io.ObjectInputStream in)
                          throws java.io.IOException

Does nothing.

Specified by:

readKernelParameters in class Kernel

Throws:

java.io.IOException

writeKernelParameters

public void writeKernelParameters(java.io.ObjectOutputStream out)
                           throws java.io.IOException

Does nothing.

Specified by:

writeKernelParameters in class Kernel

Throws:

java.io.IOException