Package org.carrot2.text.vsm

Class LinearTfIdfTermWeighting

java.lang.Object

org.carrot2.attrs.AttrComposite

org.carrot2.text.vsm.LinearTfIdfTermWeighting

All Implemented Interfaces:

AcceptingVisitor, TermWeighting

public class LinearTfIdfTermWeighting
extends AttrComposite
implements TermWeighting

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

Field Summary

Fields inherited from class org.carrot2.attrs.AttrComposite

attributes

Constructor Summary

Constructors

Constructor	Description
LinearTfIdfTermWeighting()

Method Summary

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

Methods inherited from class org.carrot2.attrs.AttrComposite

accept

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.carrot2.attrs.AcceptingVisitor

accept

Constructor Detail

LinearTfIdfTermWeighting

public LinearTfIdfTermWeighting()

Method Detail

calculateTermWeight

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

Description copied from interface: TermWeighting

Calculates the weight of a term for a single document.

Specified by:

calculateTermWeight in interface TermWeighting

Parameters:

termFrequency - frequency of the term in the document

documentFrequency - the number of documents containing the term

documentCount - total number of documents