de.lmu.ifi.dbs.elki.distance.similarityfunction

Class SharedNearestNeighborSimilarityFunction.Instance<O>

java.lang.Object

de.lmu.ifi.dbs.elki.database.query.similarity.AbstractSimilarityQuery<O>

de.lmu.ifi.dbs.elki.database.query.similarity.AbstractDBIDSimilarityQuery<O>

de.lmu.ifi.dbs.elki.distance.similarityfunction.AbstractIndexBasedSimilarityFunction.Instance<O,SharedNearestNeighborIndex<O>>

de.lmu.ifi.dbs.elki.distance.similarityfunction.SharedNearestNeighborSimilarityFunction.Instance<O>

Type Parameters:

O - Object type

All Implemented Interfaces:

DatabaseQuery, SimilarityQuery<O>, IndexBasedSimilarityFunction.Instance<O,SharedNearestNeighborIndex<O>>

Enclosing class:

SharedNearestNeighborSimilarityFunction<O>

public static class SharedNearestNeighborSimilarityFunction.Instance<O>
extends AbstractIndexBasedSimilarityFunction.Instance<O,SharedNearestNeighborIndex<O>>

Instance for a particular database.

Author:

Erich Schubert

Field Summary

Fields

Modifier and Type	Field and Description
private SharedNearestNeighborSimilarityFunction<? super O>	similarityFunction Similarity function.

Fields inherited from class de.lmu.ifi.dbs.elki.distance.similarityfunction.AbstractIndexBasedSimilarityFunction.Instance

index

Fields inherited from class de.lmu.ifi.dbs.elki.database.query.similarity.AbstractSimilarityQuery

relation

Fields inherited from interface de.lmu.ifi.dbs.elki.database.query.DatabaseQuery

HINT_BULK, HINT_EXACT, HINT_HEAVY_USE, HINT_NO_CACHE, HINT_OPTIMIZED_ONLY, HINT_SINGLE

Constructor Summary

Constructors

Constructor and Description
SharedNearestNeighborSimilarityFunction.Instance(Relation<O> database, SharedNearestNeighborIndex<O> preprocessor, SharedNearestNeighborSimilarityFunction<? super O> similarityFunction) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
SimilarityFunction<? super O>	getSimilarityFunction() Get the inner similarity function.
double	similarity(DBIDRef id1, DBIDRef id2) Returns the distance between the two objects specified by their object ids.

Methods inherited from class de.lmu.ifi.dbs.elki.distance.similarityfunction.AbstractIndexBasedSimilarityFunction.Instance

getIndex

Methods inherited from class de.lmu.ifi.dbs.elki.database.query.similarity.AbstractDBIDSimilarityQuery

similarity, similarity, similarity

Methods inherited from class de.lmu.ifi.dbs.elki.database.query.similarity.AbstractSimilarityQuery

getRelation

Methods inherited from class java.lang.Object

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

Methods inherited from interface de.lmu.ifi.dbs.elki.database.query.similarity.SimilarityQuery

getRelation, similarity, similarity, similarity

Field Detail

similarityFunction

private SharedNearestNeighborSimilarityFunction<? super O> similarityFunction

Similarity function.

Constructor Detail

SharedNearestNeighborSimilarityFunction.Instance

public SharedNearestNeighborSimilarityFunction.Instance(Relation<O> database,
                                                SharedNearestNeighborIndex<O> preprocessor,
                                                SharedNearestNeighborSimilarityFunction<? super O> similarityFunction)

Constructor.

Parameters:

database - Database

preprocessor - Index

Method Detail

similarity

public double similarity(DBIDRef id1,
                DBIDRef id2)

Description copied from class: AbstractSimilarityQuery

Returns the distance between the two objects specified by their object ids.

Specified by:

similarity in interface SimilarityQuery<O>

Specified by:

similarity in class AbstractSimilarityQuery<O>

Parameters:

id1 - first object id

id2 - second object id

Returns:

the distance between the two objects specified by their object ids

getSimilarityFunction

public SimilarityFunction<? super O> getSimilarityFunction()

Description copied from interface: SimilarityQuery

Get the inner similarity function.

Returns:

Similarity function