Package elki.distance.adapter

Class ArccosSimilarityAdapter<O>

java.lang.Object

elki.distance.AbstractDatabaseDistance<O>

elki.distance.adapter.AbstractSimilarityAdapter<O>

elki.distance.adapter.ArccosSimilarityAdapter<O>

Type Parameters:

O - Object class to process.

All Implemented Interfaces:

Distance<O>

public class ArccosSimilarityAdapter<O>
extends AbstractSimilarityAdapter<O>

Adapter from a normalized similarity function to a distance function using arccos(sim).

Since:

0.2

Author:

Erich Schubert

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	ArccosSimilarityAdapter.Instance<O>	Distance function instance
static class	ArccosSimilarityAdapter.Par<O>	Parameterization class.

Field Summary

Fields inherited from class elki.distance.adapter.AbstractSimilarityAdapter

similarityFunction

Constructor Summary

Constructors

Constructor	Description
ArccosSimilarityAdapter(NormalizedSimilarity<? super O> similarityFunction)	Constructor.

Method Summary

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

Methods inherited from class elki.distance.adapter.AbstractSimilarityAdapter

equals, getInputTypeRestriction, hashCode, isSymmetric

Methods inherited from class java.lang.Object

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

Methods inherited from interface elki.distance.Distance

isMetric, isSquared

Constructor Detail

ArccosSimilarityAdapter

public ArccosSimilarityAdapter(NormalizedSimilarity<? super O> similarityFunction)

Constructor.

Parameters:

similarityFunction - Similarity function

Method Detail

instantiate

public <T extends O> DistanceQuery<T> instantiate(Relation<T> database)

Description copied from interface: Distance

Instantiate with a database to get the actual distance query.

Specified by:

instantiate in interface Distance<O>

Specified by:

instantiate in class AbstractSimilarityAdapter<O>

Parameters:

database - The representation to use

Returns:

Actual distance query.