org.openimaj.experiment.evaluation.cluster.analyser

Class PurityAnalysis

java.lang.Object

org.openimaj.experiment.evaluation.cluster.analyser.PurityAnalysis

All Implemented Interfaces:

AnalysisResult, RandomBaselineWrappable

public class PurityAnalysis
extends Object
implements AnalysisResult, RandomBaselineWrappable

A measure of how pure each cluster is. P = 1/N Sigma_k max_j | w_k AND c_j | Count the true classes of all the elements in a class, make a count of the largest group from each cluster, divide by number of elements in all clusters. High means: most of the clusters had a high number of a single class Low means: most of the clusters had a roughly equal spread of all the classes

Author:

Sina Samangooei (ss@ecs.soton.ac.uk)

Field Summary

Fields

Modifier and Type	Field and Description
double	purity the purity

Constructor Summary

Constructors

Constructor and Description
PurityAnalysis()

Method Summary

Modifier and Type	Method and Description
String	getDetailReport() Get a String detailing the result.
net.sf.jasperreports.engine.JasperPrint	getDetailReport(String title, String info) Get a JasperPrint detailing the result.
String	getSummaryReport() Get a String summarising the result.
net.sf.jasperreports.engine.JasperPrint	getSummaryReport(String title, String info) Get a JasperPrint summarising the result.
double	score()
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

purity

public double purity

the purity

Constructor Detail

PurityAnalysis

public PurityAnalysis()

Method Detail

getSummaryReport

public net.sf.jasperreports.engine.JasperPrint getSummaryReport(String title,
                                                                String info)
                                                         throws net.sf.jasperreports.engine.JRException

Description copied from interface: AnalysisResult

Get a JasperPrint summarising the result.

Specified by:

getSummaryReport in interface AnalysisResult

Parameters:

title - a title to add to the report

info - information to print at the beginning of the report

Returns:

a String summarising the result

Throws:

net.sf.jasperreports.engine.JRException

getDetailReport

public net.sf.jasperreports.engine.JasperPrint getDetailReport(String title,
                                                               String info)
                                                        throws net.sf.jasperreports.engine.JRException

Description copied from interface: AnalysisResult

Get a JasperPrint detailing the result.

Specified by:

getDetailReport in interface AnalysisResult

Parameters:

title - a title to add to the report

info - information to print at the beginning of the report

Returns:

a JasperPrint detailing the result.

Throws:

net.sf.jasperreports.engine.JRException

getSummaryReport

public String getSummaryReport()

Description copied from interface: AnalysisResult

Get a String summarising the result.

Specified by:

getSummaryReport in interface AnalysisResult

Returns:

a String summarising the result

getDetailReport

public String getDetailReport()

Description copied from interface: AnalysisResult

Get a String detailing the result.

Specified by:

getDetailReport in interface AnalysisResult

Returns:

a String detailing the result

toString

public String toString()

Overrides:

toString in class Object

score

public double score()

Specified by:

score in interface RandomBaselineWrappable

Returns:

the underlying score to wrap in a TestRandomBaselineClusterAnalyser