at.tuwien.ifs.somtoolbox.layers.quality

Class QeMqeDifference

java.lang.Object

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

at.tuwien.ifs.somtoolbox.layers.quality.QeMqeDifference

All Implemented Interfaces:

QualityMeasure

public class QeMqeDifference
extends AbstractQualityMeasure

Calculates the difference between the quantization error and the mean quantization error in four variations. Simple, logarithmic, squared and exponential difference.

Version:

$Id:

Author:

Stefan Belk, Herbert Pajer

Field Summary

Fields

Modifier and Type	Field and Description
private double	averageDiff
static java.lang.String	DIFF_QE_MQE
private double[][]	diffQeMqe
static java.lang.String	EXP_DIFF_QE_MQE
static java.lang.String	LOG_DIFF_QE_MQE
private int	nonEmpty
static java.lang.String	SQUARE_DIFF_QE_MQE
private int	xSize
private int	ySize

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

data, layer, mapQualityDescriptions, mapQualityNames, unitQualityDescriptions, unitQualityNames

Constructor Summary

Constructors

Constructor and Description
QeMqeDifference(Layer layer, InputData data)

Method Summary

Modifier and Type	Method and Description
private double	getDiff(java.lang.String type) Returns the average difference.
private double[][]	getDiffMatrix(java.lang.String type) Computes the matrix of differences difference "log_diff_qe_mqe", "square_diff_qe_mqe", "exp_diff_qe_mqe" or returns the pre-computed matrix for "diff_qe_mqe"
double	getMapQuality(java.lang.String name)
double[][]	getUnitQualities(java.lang.String name)

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

EXP_DIFF_QE_MQE

public static final java.lang.String EXP_DIFF_QE_MQE

See Also:

Constant Field Values

SQUARE_DIFF_QE_MQE

public static final java.lang.String SQUARE_DIFF_QE_MQE

See Also:

Constant Field Values

LOG_DIFF_QE_MQE

public static final java.lang.String LOG_DIFF_QE_MQE

See Also:

Constant Field Values

DIFF_QE_MQE

public static final java.lang.String DIFF_QE_MQE

See Also:

Constant Field Values

averageDiff

private double averageDiff

diffQeMqe

private double[][] diffQeMqe

nonEmpty

private int nonEmpty

xSize

private int xSize

ySize

private int ySize

Constructor Detail

QeMqeDifference

public QeMqeDifference(Layer layer,
                       InputData data)

Method Detail

getDiff

private double getDiff(java.lang.String type)

Returns the average difference.

Parameters:

type - Visualization type: "diff_qe_mqe", "log_diff_qe_mqe", "square_diff_qe_mqe", "exp_diff_qe_mqe"

Returns:

The average difference

getDiffMatrix

private double[][] getDiffMatrix(java.lang.String type)

Computes the matrix of differences difference "log_diff_qe_mqe", "square_diff_qe_mqe", "exp_diff_qe_mqe" or returns the pre-computed matrix for "diff_qe_mqe"

Parameters:

type - Visualization type: "diff_qe_mqe", "log_diff_qe_mqe", "square_diff_qe_mqe", "exp_diff_qe_mqe"

Returns:

The matrix of differences

getMapQuality

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

Throws:

QualityMeasureNotFoundException

getUnitQualities

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

Throws:

QualityMeasureNotFoundException