Java Doc for LinearAggregator.java in » Search-Engine » mg4j » it » unimi » dsi » mg4j » search » score » Java Source Code / Java DocumentationJava Source Code and Java Documentation

Java Source Code / Java Documentation

1.	6.0 JDK Core
2.	6.0 JDK Modules
3.	6.0 JDK Modules com.sun
4.	6.0 JDK Modules com.sun.java
5.	6.0 JDK Modules sun
6.	6.0 JDK Platform
7.	Ajax
8.	Apache Harmony Java SE
9.	Aspect oriented
10.	Authentication Authorization
11.	Blogger System
12.	Build
13.	Byte Code
14.	Cache
15.	Chart
16.	Chat
17.	Code Analyzer
18.	Collaboration
19.	Content Management System
20.	Database Client
21.	Database DBMS
22.	Database JDBC Connection Pool
23.	Database ORM
24.	Development
25.	EJB Server geronimo
26.	EJB Server GlassFish
27.	EJB Server JBoss 4.2.1
28.	EJB Server resin 3.1.5
29.	ERP CRM Financial
30.	ESB
31.	Forum
32.	GIS
33.	Graphic Library
34.	Groupware
35.	HTML Parser
36.	IDE
37.	IDE Eclipse
38.	IDE Netbeans
39.	Installer
40.	Internationalization Localization
41.	Inversion of Control
42.	Issue Tracking
43.	J2EE
44.	JBoss
45.	JMS
46.	JMX
47.	Library
48.	Mail Clients
49.	Net
50.	Parser
51.	PDF
52.	Portal
53.	Profiler
54.	Project Management
55.	Report
56.	RSS RDF
57.	Rule Engine
58.	Science
59.	Scripting
60.	Search Engine
61.	Security
62.	Sevlet Container
63.	Source Control
64.	Swing Library
65.	Template Engine
66.	Test Coverage
67.	Testing
68.	UML
69.	Web Crawler
70.	Web Framework
71.	Web Mail
72.	Web Server
73.	Web Services
74.	Web Services apache cxf 2.0.1
75.	Web Services AXIS2
76.	Wiki Engine
77.	Workflow Engines
78.	XML
79.	XML UI

Java

Java Tutorial

Illustrator Tutorials

GIMP Tutorials

C# / C Sharp

C# / CSharp Tutorial

C# / CSharp Open Source

SQL Server / T-SQL Tutorial

Oracle PL / SQL

Oracle PL/SQL Tutorial

Flash / Flex / ActionScript

VBA / Excel / Access / Word

XML

XML Tutorial

Microsoft Office PowerPoint 2007 Tutorial

Microsoft Office Excel 2007 Tutorial

Microsoft Office Word 2007 Tutorial

Java Source Code / Java Documentation » Search Engine » mg4j » it.unimi.dsi.mg4j.search.score

Source Cross Reference

Class Diagram

Java Document (Java Doc)

it.unimi.dsi.mg4j.search.score .AbstractAggregator

it.unimi.dsi.mg4j.search.score .LinearAggregator

LinearAggregator
public class LinearAggregator extends AbstractAggregator (Code)
	An aggregator that computes a linear combination of the component scorers. This class requires, beside the usually array of scorers, a parallel array of weights (not to be confused with it.unimi.dsi.mg4j.search.score.Scorer.setWeights(Reference2DoubleMap) index weights ). The score from each scorer will be multiplied by the respective weight, and the overal score will be the sum of these values. Equalisation, if necessary, if performed by maximising over the sample scores and dividing all scores by the resulting value.

Field Summary
final protected double[]	equalisationFactor The equalisation factors for each scorer (all set to one if no equalisation is required).
final protected double[]	weight The weights of each scorer.

Constructor Summary
public	LinearAggregator(Scorer[] scorer, double[] weight) Creates a linear aggregator.

Method Summary
public synchronized LinearAggregator	copy()
protected double	score(double score)
protected void	setupEqualizationFactors()
public String	toString()

Field Detail

equalisationFactor
final protected double[] equalisationFactor(Code)
	The equalisation factors for each scorer (all set to one if no equalisation is required).

weight
final protected double[] weight(Code)
	The weights of each scorer.

Constructor Detail

LinearAggregator
public LinearAggregator(Scorer[] scorer, double[] weight)(Code)
	Creates a linear aggregator. Parameters: scorer - the array of scorers. Parameters: weight - the array of weights.

Method Detail

copy
public synchronized LinearAggregator copy()(Code)

score
protected double score(double score)(Code)

setupEqualizationFactors
protected void setupEqualizationFactors()(Code)

toString
public String toString()(Code)

Fields inherited from it.unimi.dsi.mg4j.search.score.AbstractAggregator

protected int actualSamples(Code)(Java Doc)
protected int currSample(Code)(Java Doc)
final protected double[] currScore(Code)(Java Doc)
protected DocumentIterator documentIterator(Code)(Java Doc)
final protected int n(Code)(Java Doc)
final protected boolean needsCaching(Code)(Java Doc)
protected int[] sampleDocument(Code)(Java Doc)
protected double[][] sampleScore(Code)(Java Doc)
protected int samples(Code)(Java Doc)
final protected Scorer[] scorer(Code)(Java Doc)

Methods inherited from it.unimi.dsi.mg4j.search.score.AbstractAggregator

public synchronized void equalize(int samples)(Code)(Java Doc)
public boolean hasNext()(Code)(Java Doc)
public int nextDocument() throws IOException(Code)(Java Doc)
public int nextInt()(Code)(Java Doc)
public double score(Index index)(Code)(Java Doc)
public double score() throws IOException(Code)(Java Doc)
abstract protected double score(double score)(Code)(Java Doc)
public synchronized boolean setWeights(Reference2DoubleMap<Index> index2weight)(Code)(Java Doc)
abstract protected void setupEqualizationFactors()(Code)(Java Doc)
public boolean usesIntervals()(Code)(Java Doc)
public void wrap(DocumentIterator documentIterator) throws IOException(Code)(Java Doc)

www.java2java.com | Contact Us

All other trademarks are property of their respective owners.