Package elki.similarity.cluster

Class ClusterJaccardSimilarity

java.lang.Object

elki.similarity.cluster.ClusterJaccardSimilarity

All Implemented Interfaces:

elki.distance.Distance<Cluster<?>>, elki.distance.PrimitiveDistance<Cluster<?>>, elki.similarity.PrimitiveSimilarity<Cluster<?>>, elki.similarity.Similarity<Cluster<?>>

@Reference(authors="P. Jaccard",
           title="Distribution de la florine alpine dans la Bassin de Dranses et dans quelques regiones voisines",
           booktitle="Bulletin del la Soci\u00e9t\u00e9 Vaudoise des Sciences Naturelles",
           url="http://data.rero.ch/01-R241574160",
           bibkey="journals/misc/Jaccard1902")
public class ClusterJaccardSimilarity
extends java.lang.Object
implements elki.distance.PrimitiveDistance<Cluster<?>>, elki.similarity.PrimitiveSimilarity<Cluster<?>>

Measure the similarity of clusters via the Jaccard coefficient.

Reference:

P. Jaccard
Distribution de la florine alpine dans la Bassin de Dranses et dans quelques regiones voisines
Bulletin del la Société Vaudoise des Sciences Naturelles

Since:

0.7.0

Author:

Erich Schubert

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	ClusterJaccardSimilarity.Par	Parameterization class.

Field Summary

Fields

Modifier and Type	Field	Description
static ClusterJaccardSimilarity	STATIC	Static instance.

Constructor Summary

Constructors

Constructor	Description
ClusterJaccardSimilarity()	Constructor - use the static instance STATIC!

Method Summary

Modifier and Type	Method	Description
double	distance(Cluster<?> o1, Cluster<?> o2)
elki.data.type.SimpleTypeInformation<? super Cluster<?>>	getInputTypeRestriction()
<T extends Cluster<?>> elki.database.query.DistanceSimilarityQuery<T>	instantiate(elki.database.relation.Relation<T> relation)
boolean	isMetric()
boolean	isSymmetric()
double	similarity(Cluster<?> o1, Cluster<?> o2)

Methods inherited from class java.lang.Object

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

Methods inherited from interface elki.distance.Distance

isSquared

Field Detail

STATIC

public static final ClusterJaccardSimilarity STATIC

Static instance.

Constructor Detail

ClusterJaccardSimilarity

public ClusterJaccardSimilarity()

Constructor - use the static instance STATIC!

Method Detail

similarity

public double similarity(Cluster<?> o1,
                         Cluster<?> o2)

Specified by:

similarity in interface elki.similarity.PrimitiveSimilarity<Cluster<?>>

distance

public double distance(Cluster<?> o1,
                       Cluster<?> o2)

Specified by:

distance in interface elki.distance.PrimitiveDistance<Cluster<?>>

isSymmetric

public boolean isSymmetric()

Specified by:

isSymmetric in interface elki.distance.Distance<Cluster<?>>

Specified by:

isSymmetric in interface elki.similarity.Similarity<Cluster<?>>

isMetric

public boolean isMetric()

Specified by:

isMetric in interface elki.distance.Distance<Cluster<?>>

instantiate

public <T extends Cluster<?>> elki.database.query.DistanceSimilarityQuery<T> instantiate(elki.database.relation.Relation<T> relation)

Specified by:

instantiate in interface elki.distance.Distance<Cluster<?>>

Specified by:

instantiate in interface elki.distance.PrimitiveDistance<Cluster<?>>

Specified by:

instantiate in interface elki.similarity.PrimitiveSimilarity<Cluster<?>>

Specified by:

instantiate in interface elki.similarity.Similarity<Cluster<?>>

getInputTypeRestriction

public elki.data.type.SimpleTypeInformation<? super Cluster<?>> getInputTypeRestriction()

Specified by:

getInputTypeRestriction in interface elki.distance.Distance<Cluster<?>>

Specified by:

getInputTypeRestriction in interface elki.distance.PrimitiveDistance<Cluster<?>>

Specified by:

getInputTypeRestriction in interface elki.similarity.Similarity<Cluster<?>>