idl.tmt.util
Class LogOddsUtil

java.lang.Object
  |
  +--idl.tmt.util.LogOddsUtil

public class LogOddsUtil

extends java.lang.Object

Created on Apr 2, 2004

Author:

jelsas

Field Summary

private IndexedCollection	collection
private static double	LOG_2
private double[][]	logOddsRatios
private int	numClusters
private int	numDocs
private int[][]	numDocsWithTerm
private int	numTerms
private static double	SMOOTHING_FACTOR
private int[][]	termIDByRank

Constructor Summary

LogOddsUtil(IndexedCollection collection, HardClustering clustering)

Method Summary

private void	calculateLogOddsRatios()
private void	calculateNumDocsWithTerm(HardClustering clustering)
private void	calculateTermIDByRank()
double	getLogOddsForTerm(int clusterID, int termID)
int	getTermIDByRank(int rank, int clusterID)
java.util.ArrayList	getTopNterms(int n, int clusterID)
void	printBottomNTerms(int n)
void	printTopNLabelCandidates(int n)
void	printTopNTerms(int n)
int[]	topNTerms(int n, int clusterID)

Methods inherited from class java.lang.Object

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

Field Detail

numClusters

private int numClusters

numTerms

private int numTerms

numDocs

private int numDocs

collection

private IndexedCollection collection

numDocsWithTerm

private int[][] numDocsWithTerm

logOddsRatios

private double[][] logOddsRatios

termIDByRank

private int[][] termIDByRank

SMOOTHING_FACTOR

private static final double SMOOTHING_FACTOR

LOG_2

private static final double LOG_2

Constructor Detail

LogOddsUtil

public LogOddsUtil(IndexedCollection collection,
                   HardClustering clustering)

Method Detail

calculateNumDocsWithTerm

private void calculateNumDocsWithTerm(HardClustering clustering)

calculateLogOddsRatios

private void calculateLogOddsRatios()

calculateTermIDByRank

private void calculateTermIDByRank()

getLogOddsForTerm

public double getLogOddsForTerm(int clusterID,
                                int termID)

printTopNTerms

public void printTopNTerms(int n)

getTopNterms

public java.util.ArrayList getTopNterms(int n,
                                        int clusterID)

topNTerms

public int[] topNTerms(int n,
                       int clusterID)

getTermIDByRank

public int getTermIDByRank(int rank,
                           int clusterID)

printBottomNTerms

public void printBottomNTerms(int n)

printTopNLabelCandidates

public void printTopNLabelCandidates(int n)