Package cc.mallet.topics

Class NonNegativeMatrixFactorization

java.lang.Object

cc.mallet.topics.NonNegativeMatrixFactorization

public class NonNegativeMatrixFactorization
extends java.lang.Object

Field Summary

Fields

Modifier and Type	Field	Description
static java.lang.String[]	BARS

Constructor Summary

Constructors

Constructor	Description
NonNegativeMatrixFactorization(InstanceList instances, int numFactors, boolean idfWeighting)
NonNegativeMatrixFactorization(InstanceList instances, int numFactors, boolean idfWeighting, Randoms random)

Method Summary

Modifier and Type	Method	Description
void	calculateIDFWeights()
static java.lang.String	getBar(double x, double min, double max)
static java.lang.String	getBars(double[] sequence)
static java.lang.String	getBars(double[] sequence, double min, double max)
double	getDivergence()
void	initialize(int clusterSize)
static void	main(java.lang.String[] args)
void	printFactorFeatures(int limit)
void	updateWeights()
void	writeFeatureFactors(java.io.PrintWriter out)
void	writeInstanceFactors(java.io.PrintWriter out)

Methods inherited from class java.lang.Object

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

Field Detail

BARS

public static final java.lang.String[] BARS

Constructor Detail

NonNegativeMatrixFactorization

public NonNegativeMatrixFactorization(InstanceList instances,
                                      int numFactors,
                                      boolean idfWeighting)

NonNegativeMatrixFactorization

public NonNegativeMatrixFactorization(InstanceList instances,
                                      int numFactors,
                                      boolean idfWeighting,
                                      Randoms random)

Method Detail

calculateIDFWeights

public void calculateIDFWeights()

initialize

public void initialize(int clusterSize)

getBar

public static java.lang.String getBar(double x,
                                      double min,
                                      double max)

getBars

public static java.lang.String getBars(double[] sequence,
                                       double min,
                                       double max)

getBars

public static java.lang.String getBars(double[] sequence)

getDivergence

public double getDivergence()

updateWeights

public void updateWeights()

printFactorFeatures

public void printFactorFeatures(int limit)

writeFeatureFactors

public void writeFeatureFactors(java.io.PrintWriter out)
                         throws java.io.IOException

Throws:

java.io.IOException

writeInstanceFactors

public void writeInstanceFactors(java.io.PrintWriter out)
                          throws java.io.IOException

Throws:

java.io.IOException

main

public static void main(java.lang.String[] args)
                 throws java.lang.Exception

Throws:

java.lang.Exception