uk.ac.gla.terrier.matching.tsms
Interface TermScoreModifier

All Superinterfaces:

java.lang.Cloneable

All Known Implementing Classes:

FieldScoreModifier, RequiredTermModifier, TermInFieldModifier

public interface TermScoreModifier
extends java.lang.Cloneable

The interface that should be implemented by each class that assigns or modifies a score of a term for a document.

Version:

$Revision: 1.9 $

Author:

Vassilis Plachouras, Craig Macdonald

Method Summary

java.lang.Object	clone() Return a clone of this object (deep copy).
java.lang.String	getName() Returns the name of the modifier.
int	hashCode()
int	modifyScores(double[] termScores, int[][] pointers) Modifies the scores of the documents for a given set of pointers, or postings.

Method Detail

modifyScores

int modifyScores(double[] termScores,
                 int[][] pointers)

Modifies the scores of the documents for a given set of pointers, or postings.

Parameters:

termScores - double[] the scores of the documents.

pointers - int[][] the vectors that contain the pointers, that is pairs of document identifiers and term frequencies.

Returns:

the number of documents for which the scores were modified.

getName

java.lang.String getName()

Returns the name of the modifier.

Returns:

String the name of the modifier.

clone

java.lang.Object clone()

Return a clone of this object (deep copy).

hashCode

int hashCode()

Overrides:

hashCode in class java.lang.Object