cc.mallet.topics
Class LDA

java.lang.Object
  cc.mallet.topics.LDA

All Implemented Interfaces:

java.io.Serializable

public class LDA
extends java.lang.Object
implements java.io.Serializable

Latent Dirichlet Allocation.

Author:

Andrew McCallum

See Also:

Serialized Form

Constructor Summary

LDA(int numberOfTopics)

LDA(int numberOfTopics, double alphaSum, double beta)

Method Summary

void	addDocuments(InstanceList additionalDocuments, int numIterations, int showTopicsInterval, int outputModelInterval, java.lang.String outputModelFilename, Randoms r)
void	estimate(InstanceList documents, int numIterations, int showTopicsInterval, int outputModelInterval, java.lang.String outputModelFilename, Randoms r)
void	estimate(int docIndexStart, int docIndexLength, int numIterations, int showTopicsInterval, int outputModelInterval, java.lang.String outputModelFilename, Randoms r)
int[][]	getDocTopicCounts()
InstanceList	getInstanceList()
int[]	getTokensPerTopic()
int[][]	getTypeTopicCounts()
static void	main(java.lang.String[] args)
void	printDocumentTopics(java.io.File f)
void	printDocumentTopics(java.io.PrintWriter pw)
void	printDocumentTopics(java.io.PrintWriter pw, double threshold, int max)
void	printState(java.io.File f)
void	printState(java.io.PrintWriter pw)
void	printTopWords(int numWords, boolean useNewLines)
void	sampleTopicsForAllDocs(Randoms r)
void	sampleTopicsForDocs(int start, int length, Randoms r)
void	write(java.io.File f)

Methods inherited from class java.lang.Object

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

Constructor Detail

LDA

public LDA(int numberOfTopics)

LDA

public LDA(int numberOfTopics,
           double alphaSum,
           double beta)

Method Detail

estimate

public void estimate(InstanceList documents,
                     int numIterations,
                     int showTopicsInterval,
                     int outputModelInterval,
                     java.lang.String outputModelFilename,
                     Randoms r)

addDocuments

public void addDocuments(InstanceList additionalDocuments,
                         int numIterations,
                         int showTopicsInterval,
                         int outputModelInterval,
                         java.lang.String outputModelFilename,
                         Randoms r)

estimate

public void estimate(int docIndexStart,
                     int docIndexLength,
                     int numIterations,
                     int showTopicsInterval,
                     int outputModelInterval,
                     java.lang.String outputModelFilename,
                     Randoms r)

sampleTopicsForAllDocs

public void sampleTopicsForAllDocs(Randoms r)

sampleTopicsForDocs

public void sampleTopicsForDocs(int start,
                                int length,
                                Randoms r)

getDocTopicCounts

public int[][] getDocTopicCounts()

getTypeTopicCounts

public int[][] getTypeTopicCounts()

getTokensPerTopic

public int[] getTokensPerTopic()

printTopWords

public void printTopWords(int numWords,
                          boolean useNewLines)

printDocumentTopics

public void printDocumentTopics(java.io.File f)
                         throws java.io.IOException

Throws:

java.io.IOException

printDocumentTopics

public void printDocumentTopics(java.io.PrintWriter pw)

printDocumentTopics

public void printDocumentTopics(java.io.PrintWriter pw,
                                double threshold,
                                int max)

printState

public void printState(java.io.File f)
                throws java.io.IOException

Throws:

java.io.IOException

printState

public void printState(java.io.PrintWriter pw)

write

public void write(java.io.File f)

getInstanceList

public InstanceList getInstanceList()

main

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

Throws:

java.io.IOException