org.basex.query.ft
Class Scoring

java.lang.Object
  org.basex.query.ft.Scoring

public final class Scoring
extends java.lang.Object

Simple default scoring model, assembling all scoring calculations.

Author:

Workgroup DBIS, University of Konstanz 2005-09, ISC License, Christian Gruen

Constructor Summary

Scoring()

Method Summary

double	and(double o, double n) Combines two scoring values.
double	finish(double s) Creates a final scoring value.
double	or(double o, double n) Combines two scoring values.
double	step(double s) Returns a scoring after a location step traversal.
double	word(int tl, double l) Calculates a score value, based on the token length and complete text length.

Methods inherited from class java.lang.Object

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

Constructor Detail

Scoring

public Scoring()

Method Detail

step

public double step(double s)

Returns a scoring after a location step traversal.

Parameters:

s - input value

Returns:

result

word

public double word(int tl,
                   double l)

Calculates a score value, based on the token length and complete text length.

Parameters:

tl - token length

l - complete length

Returns:

result

and

public double and(double o,
                  double n)

Combines two scoring values.

Parameters:

o - old value

n - new value

Returns:

result

or

public double or(double o,
                 double n)

Combines two scoring values.

Parameters:

o - old value

n - new value

Returns:

result

finish

public double finish(double s)

Creates a final scoring value.

Parameters:

s - input value

Returns:

result