org.carrot2.text.vsm
Class TfTermWeighting

java.lang.Object
  org.carrot2.text.vsm.TfTermWeighting

All Implemented Interfaces:

ITermWeighting

public class TfTermWeighting
extends Object
implements ITermWeighting

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

Constructor Summary

TfTermWeighting()

Method Summary

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

TfTermWeighting

public TfTermWeighting()

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