dragon.ir.topicmodel

Class SimpleMixtureModel

java.lang.Object

dragon.ir.topicmodel.AbstractModel

dragon.ir.topicmodel.AbstractTopicModel

dragon.ir.topicmodel.SimpleMixtureModel

All Implemented Interfaces:

TopicModel

public class SimpleMixtureModel
extends AbstractTopicModel

Simple mixture model

Copyright: Copyright (c) 2005

Company: IST, Drexel University

Version:

1.0

Author:

Davis Zhou

Field Summary

Fields

Modifier and Type	Field and Description
protected double	bkgCoefficient
protected DoubleVector	bkgModel

Fields inherited from class dragon.ir.topicmodel.AbstractTopicModel

arrDocTheme, arrThemeTerm, docNum, indexReader, termNum, themeNum

Fields inherited from class dragon.ir.topicmodel.AbstractModel

iterations, seed, statusOut

Constructor Summary

Constructors

Constructor and Description
SimpleMixtureModel(IndexReader indexReader, double bkgCoefficient)
SimpleMixtureModel(IndexReader indexReader, DoubleVector bkgModel, double bkgCoefficient)

Method Summary

Modifier and Type	Method and Description
boolean	estimateModel(int topicNum) Estimate the topic models
boolean	estimateModel(int[] arrDoc, int topicNum)
protected void	initialize(int termNum, int themeNum, int docNum, double[][] arrModel, double[][] arrDocMembership)

Methods inherited from class dragon.ir.topicmodel.AbstractTopicModel

getDocNum, getDocTopics, getTermName, getTermNum, getTopic, getTopicNum

Methods inherited from class dragon.ir.topicmodel.AbstractModel

getBkgModel, getIterationNum, printStatus, setIterationNum, setRandomSeed, setStatusOut

Methods inherited from class java.lang.Object

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

Field Detail

bkgModel

protected DoubleVector bkgModel

bkgCoefficient

protected double bkgCoefficient

Constructor Detail

SimpleMixtureModel

public SimpleMixtureModel(IndexReader indexReader,
                          double bkgCoefficient)

SimpleMixtureModel

public SimpleMixtureModel(IndexReader indexReader,
                          DoubleVector bkgModel,
                          double bkgCoefficient)

Method Detail

estimateModel

public boolean estimateModel(int topicNum)

Description copied from interface: TopicModel

Estimate the topic models

Parameters:

topicNum - the number of topics

Returns:

true if estimating successfully

estimateModel

public boolean estimateModel(int[] arrDoc,
                             int topicNum)

initialize

protected void initialize(int termNum,
                          int themeNum,
                          int docNum,
                          double[][] arrModel,
                          double[][] arrDocMembership)