com.rapidminer.operator.learner.functions.kernel.rvm.kernel
Class KernelRadial

java.lang.Object
  com.rapidminer.operator.learner.functions.kernel.rvm.kernel.Kernel
      com.rapidminer.operator.learner.functions.kernel.rvm.kernel.KernelRadial

All Implemented Interfaces:

java.io.Serializable

Direct Known Subclasses:

KernelCauchy, KernelLaplace, KernelPoly

public class KernelRadial
extends Kernel

Radial basis function (rbf) kernel: K(x, y) = exp(-lengthScale^{-2} * ||x - y||^2)

Author:

Piotr Kasprzak, Ingo Mierswa

See Also:

Serialized Form

Field Summary

protected double

lengthScale LengthScale parameter

Constructor Summary

KernelRadial()

KernelRadial(double lengthScale)
Constructor(s)

Method Summary

double	eval(double[] x, double[] y) evaluate kernel
java.lang.String	toString()

Methods inherited from class com.rapidminer.operator.learner.functions.kernel.rvm.kernel.Kernel

norm2

Methods inherited from class java.lang.Object

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

Field Detail

lengthScale

protected double lengthScale

LengthScale parameter

Constructor Detail

KernelRadial

public KernelRadial(double lengthScale)

Constructor(s)

KernelRadial

public KernelRadial()

Method Detail

eval

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

evaluate kernel

Specified by:

eval in class Kernel

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object