Package elki.distance

Class SharedNearestNeighborJaccardDistance<O>

java.lang.Object

elki.distance.AbstractDatabaseDistance<O>

elki.distance.AbstractIndexBasedDistance<O,SharedNearestNeighborIndex.Factory<O>>

elki.distance.SharedNearestNeighborJaccardDistance<O>

Type Parameters:

O - object type

All Implemented Interfaces:

Distance<O>, IndexBasedDistance<O>

public class SharedNearestNeighborJaccardDistance<O>
extends AbstractIndexBasedDistance<O,SharedNearestNeighborIndex.Factory<O>>

SharedNearestNeighborJaccardDistance computes the Jaccard coefficient, which is a proper distance metric.

Since:

0.4.0

Author:

Erich Schubert

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	SharedNearestNeighborJaccardDistance.Instance<T>	Actual instance for a dataset.
static class	SharedNearestNeighborJaccardDistance.Par<O>	Parameterization class.

Field Summary

Fields inherited from class elki.distance.AbstractIndexBasedDistance

indexFactory

Fields inherited from interface elki.distance.IndexBasedDistance

INDEX_ID

Constructor Summary

Constructors

Constructor	Description
SharedNearestNeighborJaccardDistance(SharedNearestNeighborIndex.Factory<O> indexFactory)	Constructor.

Method Summary

Modifier and Type	Method	Description
<T extends O> SharedNearestNeighborJaccardDistance.Instance<T>	instantiate(Relation<T> database)	Instantiate with a database to get the actual distance query.

Methods inherited from class elki.distance.AbstractIndexBasedDistance

getInputTypeRestriction, isMetric, isSymmetric

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

Constructor Detail

SharedNearestNeighborJaccardDistance

public SharedNearestNeighborJaccardDistance(SharedNearestNeighborIndex.Factory<O> indexFactory)

Constructor.

Parameters:

indexFactory - Index factory.

Method Detail

instantiate

public <T extends O> SharedNearestNeighborJaccardDistance.Instance<T> instantiate(Relation<T> database)

Description copied from interface: Distance

Instantiate with a database to get the actual distance query.

Parameters:

database - The representation to use

Returns:

Actual distance query.