at.tuwien.ifs.somtoolbox.layers.quality

Class TopographicProduct

java.lang.Object

at.tuwien.ifs.somtoolbox.layers.quality.AbstractQualityMeasure

at.tuwien.ifs.somtoolbox.layers.quality.TopographicProduct

All Implemented Interfaces:

QualityMeasure

public class TopographicProduct
extends AbstractQualityMeasure

Implementation of Topographic Product Quality Measure.
More Infos: H.U. Bauer and K.R. Pawelzik. Quantifying the neighborhood preservation of self- organizing feature maps. In IEEE Transactions on Neural Networks 3, pages 570-579, 1992.

Version:

$Id: TopographicProduct.java 3883 2010-11-02 17:13:23Z frank $

Author:

Gerd Platzgummer

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	TopographicProduct.DistanceTag
class	TopographicProduct.DistanceTagComparator

Field Summary

Fields

Modifier and Type	Field and Description
(package private) double	_K
(package private) double[][]	_Q1Q2temp
(package private) TopographicProduct.DistanceTag[][][]	mapDist
(package private) DistanceMetric	metric
(package private) TopographicProduct.DistanceTag[][][]	protoDist
(package private) double[][]	tpUnitValues

Fields inherited from class at.tuwien.ifs.somtoolbox.layers.quality.AbstractQualityMeasure

data, layer, mapQualityDescriptions, mapQualityNames, unitQualityDescriptions, unitQualityNames

Constructor Summary

Constructors

Constructor and Description
TopographicProduct(Layer layer, InputData data)

Method Summary

Modifier and Type	Method and Description
private double	calcQ1(int x, int y, int k)
private double	calcQ2(int x, int y, int k)
private void	calculateTP()
private double	calculateTPMap()
private void	DebugDoubles(java.lang.String loc)
double	getMapQuality(java.lang.String name)
private int	GetRandomIndex(TopographicProduct.DistanceTag[] dtags, int chosen)
double[][]	getUnitQualities(java.lang.String name)
private void	rankInputSpace()
private void	rankOutputSpace()
private void	resetResults()

Methods inherited from class at.tuwien.ifs.somtoolbox.layers.quality.AbstractQualityMeasure

getMapQualityDescriptions, getMapQualityNames, getUnitQualityDescriptions, getUnitQualityNames, instantiate, splitNameAndMethod

Methods inherited from class java.lang.Object

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

Field Detail

metric

DistanceMetric metric

_K

double _K

protoDist

TopographicProduct.DistanceTag[][][] protoDist

mapDist

TopographicProduct.DistanceTag[][][] mapDist

_Q1Q2temp

double[][] _Q1Q2temp

tpUnitValues

double[][] tpUnitValues

Constructor Detail

TopographicProduct

public TopographicProduct(Layer layer,
                          InputData data)

Method Detail

resetResults

private void resetResults()

rankOutputSpace

private void rankOutputSpace()

rankInputSpace

private void rankInputSpace()

calculateTP

private void calculateTP()

calculateTPMap

private double calculateTPMap()

DebugDoubles

private void DebugDoubles(java.lang.String loc)

GetRandomIndex

private int GetRandomIndex(TopographicProduct.DistanceTag[] dtags,
                           int chosen)

calcQ1

private double calcQ1(int x,
                      int y,
                      int k)

calcQ2

private double calcQ2(int x,
                      int y,
                      int k)

getMapQuality

public double getMapQuality(java.lang.String name)
                     throws QualityMeasureNotFoundException

Throws:

QualityMeasureNotFoundException

See Also:

QualityMeasure.getMapQuality(java.lang.String)

getUnitQualities

public double[][] getUnitQualities(java.lang.String name)
                            throws QualityMeasureNotFoundException

Throws:

QualityMeasureNotFoundException

See Also:

QualityMeasure.getUnitQualities(java.lang.String)