org.encog.neural.som.training.basic.neighborhood
Class NeighborhoodRBF1D

java.lang.Object
  org.encog.neural.som.training.basic.neighborhood.NeighborhoodRBF1D

All Implemented Interfaces:

NeighborhoodFunction

public class NeighborhoodRBF1D
extends Object
implements NeighborhoodFunction

A neighborhood function based on an RBF function.

Author:

jheaton

Constructor Summary

NeighborhoodRBF1D(RadialBasisFunction radial)
Construct the neighborhood function with the specified radial function.

NeighborhoodRBF1D(RBFEnum type)
Construct a 1d neighborhood function.

Method Summary

double	function(int currentNeuron, int bestNeuron) Determine how much the current neuron should be affected by training based on its proximity to the winning neuron.
double	getRadius()
void	setRadius(double radius) Set the radius.

Methods inherited from class java.lang.Object

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

Constructor Detail

NeighborhoodRBF1D

public NeighborhoodRBF1D(RadialBasisFunction radial)

Construct the neighborhood function with the specified radial function. Generally this will be a Gaussian function but any RBF should do.

Parameters:

radial - The radial basis function to use.

NeighborhoodRBF1D

public NeighborhoodRBF1D(RBFEnum type)

Construct a 1d neighborhood function.

Parameters:

type - The RBF type to use.

Method Detail

function

public double function(int currentNeuron,
                       int bestNeuron)

Determine how much the current neuron should be affected by training based on its proximity to the winning neuron.

Specified by:

function in interface NeighborhoodFunction

Parameters:

currentNeuron - THe current neuron being evaluated.

bestNeuron - The winning neuron.

Returns:

The ratio for this neuron's adjustment.

getRadius

public double getRadius()

Specified by:

getRadius in interface NeighborhoodFunction

Returns:

The radius.

setRadius

public void setRadius(double radius)

Set the radius.

Specified by:

setRadius in interface NeighborhoodFunction

Parameters:

radius - The new radius.