org.carrot2.text.vsm

Class LogTfIdfTermWeighting

java.lang.Object

org.carrot2.text.vsm.LogTfIdfTermWeighting

All Implemented Interfaces:

ITermWeighting

public class LogTfIdfTermWeighting
extends Object
implements ITermWeighting

Calculates term-document matrix element values based on Term Frequency.

Constructor Summary

Constructors

Constructor and Description
LogTfIdfTermWeighting()

Method Summary

Modifier and Type	Method and Description
double	calculateTermWeight(int termFrequency, int documentFrequency, int documentCount) Calculates the weight of a term for a single document.

Methods inherited from class java.lang.Object

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

Constructor Detail

LogTfIdfTermWeighting

public LogTfIdfTermWeighting()

Method Detail

calculateTermWeight

public double calculateTermWeight(int termFrequency,
                                  int documentFrequency,
                                  int documentCount)

Description copied from interface: ITermWeighting

Calculates the weight of a term for a single document.

Specified by:

calculateTermWeight in interface ITermWeighting

Parameters:

termFrequency - frequency of the term in the document

documentFrequency - the number of documents containing the term

documentCount - total number of documents