tml.vectorspace.factorisation
Class MultiDimensionalScalingNR

java.lang.Object
  tml.vectorspace.factorisation.MultiDimensionalScalingNR

public class MultiDimensionalScalingNR
extends java.lang.Object

This class converts instances for plotting using Multidimensional Scaling. It use a Newton-Raphson algorithm to project instances into 2 dimensions. Details of this algorithm can be found in the paper: http://www.pavis.org/essay/multidimensional_scaling.html

Author:

Stephen O'Rourke

Field Summary

static int	X
static int	Y

Constructor Summary

MultiDimensionalScalingNR()

Method Summary

Jama.Matrix	d_hat()
Jama.Matrix	d()
double	error()
DistanceLib.DistanceMeasure	getHighDimensionlDistanceMeasure()
weka.core.Instances	getInitialX()
DistanceLib.DistanceMeasure	getLowDimensionalDistanceMeasure()
int	getMaxIterations()
double	getTolerence()
weka.core.Instances	scale(weka.core.Instances instances)
void	setHighDimensionlDistanceMeasure(DistanceLib.DistanceMeasure highDimensionlDistanceMeasure)
void	setInitialX(weka.core.Instances initialX)
void	setLowDimensionalDistanceMeasure(DistanceLib.DistanceMeasure lowDimensionalDistanceMeasure)
void	setMaxIterations(int maxIterations)
void	setTolerence(double tolerence)

Methods inherited from class java.lang.Object

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

Field Detail

X

public static final int X

See Also:

Constant Field Values

Y

public static final int Y

See Also:

Constant Field Values

Constructor Detail

MultiDimensionalScalingNR

public MultiDimensionalScalingNR()

Method Detail

scale

public weka.core.Instances scale(weka.core.Instances instances)

getTolerence

public double getTolerence()

setTolerence

public void setTolerence(double tolerence)

getMaxIterations

public int getMaxIterations()

setMaxIterations

public void setMaxIterations(int maxIterations)

getLowDimensionalDistanceMeasure

public DistanceLib.DistanceMeasure getLowDimensionalDistanceMeasure()

setLowDimensionalDistanceMeasure

public void setLowDimensionalDistanceMeasure(DistanceLib.DistanceMeasure lowDimensionalDistanceMeasure)

getHighDimensionlDistanceMeasure

public DistanceLib.DistanceMeasure getHighDimensionlDistanceMeasure()

setHighDimensionlDistanceMeasure

public void setHighDimensionlDistanceMeasure(DistanceLib.DistanceMeasure highDimensionlDistanceMeasure)

getInitialX

public weka.core.Instances getInitialX()

setInitialX

public void setInitialX(weka.core.Instances initialX)

d

public Jama.Matrix d()

d_hat

public Jama.Matrix d_hat()

error

public double error()