org.retro.neural
Class Map2D

java.lang.Object
  org.retro.neural.Map2D

Direct Known Subclasses:

IGG, SOM

public abstract class Map2D

extends java.lang.Object

Nested Class Summary

protected class

Map2D.ReportTimerTask

Field Summary

protected SNVector[][]	_A
protected int	_N1
protected int	_N2
protected int	_percent_done
protected SNVector[]	_PX
protected org.retro.neural.Roulette	_wheel
protected static long	REPORT_MSEC

Constructor Summary

protected

Map2D(double[][] X, int _N1, int _N2, double[] P, java.util.Random rand)

Method Summary

protected void	adapt(java.awt.Point s, SNVector X, double et, int t, int tmax)
int	getColumnDimension() Returns the number of columns in this map.
int	getRowDimension() Returns the number of rows in this map.
int[]	getUnit(double[] v)
protected int[]	getUnit(SNVector x)
int[][]	getUnits() Returns indices of grid points from reference vectors.
double[][][]	getWeights() Returns current reference vector weights.
protected abstract void	initA()
protected void	learn(double e_i, double e_f, int tmax, java.lang.String name)
protected SNVector	randomSignal()
protected static double	scale(double i, double f, int t, int tmax)
protected abstract double	sigma(int t, int tmax)
protected static double[]	updf(double[][] X)
protected SNVector	vector(java.awt.Point a)
protected java.awt.Point	winner(SNVector X)

Methods inherited from class java.lang.Object

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

Field Detail

REPORT_MSEC

protected static final long REPORT_MSEC

See Also:

Constant Field Values

_A

protected SNVector[][] _A

_N1

protected int _N1

_N2

protected int _N2

_PX

protected SNVector[] _PX

_wheel

protected org.retro.neural.Roulette _wheel

_percent_done

protected int _percent_done

Constructor Detail

Map2D

protected Map2D(double[][] X,
                int _N1,
                int _N2,
                double[] P,
                java.util.Random rand)

Method Detail

getWeights

public double[][][] getWeights()

Returns current reference vector weights. Weights are returned as a 2D grid of vectors.

Returns:

reference vector weights

getUnit

public int[] getUnit(double[] v)

getUnits

public int[][] getUnits()

Returns indices of grid points from reference vectors. Points is returned as an array of 2D integer arrays.

Returns:

grid points corresponding to reference vectors

getRowDimension

public int getRowDimension()

Returns the number of rows in this map.

Returns:

the number of rows in this map

getColumnDimension

public int getColumnDimension()

Returns the number of columns in this map.

Returns:

the number of columns in this map

learn

protected void learn(double e_i,
                     double e_f,
                     int tmax,
                     java.lang.String name)

adapt

protected void adapt(java.awt.Point s,
                     SNVector X,
                     double et,
                     int t,
                     int tmax)

randomSignal

protected SNVector randomSignal()

winner

protected java.awt.Point winner(SNVector X)

getUnit

protected int[] getUnit(SNVector x)

vector

protected SNVector vector(java.awt.Point a)

initA

protected abstract void initA()

sigma

protected abstract double sigma(int t,
                                int tmax)

updf

protected static double[] updf(double[][] X)

scale

protected static double scale(double i,
                              double f,
                              int t,
                              int tmax)