cc.mallet.topics

Class PAM4L

java.lang.Object

cc.mallet.topics.PAM4L

public class PAM4L
extends java.lang.Object

Four Level Pachinko Allocation with MLE learning, based on Andrew's Latent Dirichlet Allocation.

Constructor Summary

Constructors

Constructor and Description
PAM4L(int superTopics, int subTopics)
PAM4L(int superTopics, int subTopics, double alphaSum, double beta)

Method Summary

Modifier and Type	Method and Description
void	estimate(InstanceList documents, int numIterations, int optimizeInterval, int showTopicsInterval, int outputModelInterval, java.lang.String outputModelFilename, Randoms r)
void	learnParameters(double[] parameters, int[][] observations, int[] observationLengths) Use the fixed point iteration described by Tom Minka.
static void	main(java.lang.String[] args)
void	printDocumentTopics(java.io.File f)
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	printWordCounts()

Methods inherited from class java.lang.Object

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

Constructor Detail

PAM4L

public PAM4L(int superTopics,
             int subTopics)

PAM4L

public PAM4L(int superTopics,
             int subTopics,
             double alphaSum,
             double beta)

Method Detail

estimate

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

learnParameters

public void learnParameters(double[] parameters,
                            int[][] observations,
                            int[] observationLengths)

Use the fixed point iteration described by Tom Minka.

printWordCounts

public void printWordCounts()

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,
                                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)

main

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

Throws:

java.io.IOException