dragon.ir.topicmodel
Class AbstractTopicModel

java.lang.Object
  |
  +--dragon.ir.topicmodel.AbstractModel
        |
        +--dragon.ir.topicmodel.AbstractTopicModel

All Implemented Interfaces:

TopicModel

Direct Known Subclasses:

AspectModel, GibbsLDA, SimpleMixtureModel

public abstract class AbstractTopicModel

extends AbstractModel

implements TopicModel

Abstract class of topic model

Copyright: Copyright (c) 2005

Company: IST, Drexel University

Version:

1.0

Author:

Davis Zhou

Field Summary

protected double[][]	arrDocTheme
protected double[][]	arrThemeTerm
protected int	docNum
protected IndexReader	indexReader
protected int	termNum
protected int	themeNum

Fields inherited from class dragon.ir.topicmodel.AbstractModel

iterations, seed, statusOut

Constructor Summary

AbstractTopicModel(IndexReader indexReader)

Method Summary

int	getDocNum()
double[]	getDocTopics(int docIndex)
java.lang.String	getTermName(int termIndex)
int	getTermNum()
double[]	getTopic(int topicIndex)
int	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

Methods inherited from interface dragon.ir.topicmodel.TopicModel

estimateModel

Field Detail

themeNum

protected int themeNum

termNum

protected int termNum

docNum

protected int docNum

arrThemeTerm

protected double[][] arrThemeTerm

arrDocTheme

protected double[][] arrDocTheme

indexReader

protected IndexReader indexReader

Constructor Detail

AbstractTopicModel

public AbstractTopicModel(IndexReader indexReader)

Method Detail

getTopicNum

public int getTopicNum()

Specified by:

getTopicNum in interface TopicModel

getTopic

public double[] getTopic(int topicIndex)

Specified by:

getTopic in interface TopicModel

Parameters:

topicIndex - the index of the topic

Returns:

the distribution (over words) of the given topic

getDocNum

public int getDocNum()

Specified by:

getDocNum in interface TopicModel

Returns:

the number of documents

getDocTopics

public double[] getDocTopics(int docIndex)

Specified by:

getDocTopics in interface TopicModel

Parameters:

docIndex - the index of the document

Returns:

the distribution (over topics) of the given document

getTermNum

public int getTermNum()

Specified by:

getTermNum in interface TopicModel

Returns:

the number of topical terms

getTermName

public java.lang.String getTermName(int termIndex)

Specified by:

getTermName in interface TopicModel

Parameters:

termIndex - the index of the topical term

Returns:

the name of the given topical term