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

Class FractionalSharedNearestNeighborSimilarityFunction<O>

java.lang.Object

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

de.lmu.ifi.dbs.elki.distance.similarityfunction.FractionalSharedNearestNeighborSimilarityFunction<O>

Type Parameters:

O - object type

All Implemented Interfaces:

IndexBasedSimilarityFunction<O,DoubleDistance>, NormalizedSimilarityFunction<O,DoubleDistance>, SimilarityFunction<O,DoubleDistance>, InspectionUtilFrequentlyScanned, Parameterizable

public class FractionalSharedNearestNeighborSimilarityFunction<O>
extends AbstractIndexBasedSimilarityFunction<O,SharedNearestNeighborIndex<O>,ArrayDBIDs,DoubleDistance>
implements NormalizedSimilarityFunction<O,DoubleDistance>

SharedNearestNeighborSimilarityFunction with a pattern defined to accept Strings that define a non-negative Integer.

Nested Class Summary

Nested Classes

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

Field Summary

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

INDEX_ID, indexFactory

Constructor Summary

Constructors

Constructor and Description
FractionalSharedNearestNeighborSimilarityFunction(SharedNearestNeighborIndex.Factory<O,SharedNearestNeighborIndex<O>> indexFactory) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
DoubleDistance	getDistanceFactory() Get a distance factory.
<T extends O> FractionalSharedNearestNeighborSimilarityFunction.Instance<T>	instantiate(Relation<T> database) Preprocess the database to get the actual distance function.

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

getInputTypeRestriction, isSymmetric

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.distance.similarityfunction.SimilarityFunction

getInputTypeRestriction, isSymmetric

Constructor Detail

FractionalSharedNearestNeighborSimilarityFunction

public FractionalSharedNearestNeighborSimilarityFunction(SharedNearestNeighborIndex.Factory<O,SharedNearestNeighborIndex<O>> indexFactory)

Constructor.

Parameters:

indexFactory - Index factory.

Method Detail

instantiate

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

Description copied from interface: IndexBasedSimilarityFunction

Preprocess the database to get the actual distance function.

Specified by:

instantiate in interface IndexBasedSimilarityFunction<O,DoubleDistance>

Specified by:

instantiate in interface SimilarityFunction<O,DoubleDistance>

Specified by:

instantiate in class AbstractIndexBasedSimilarityFunction<O,SharedNearestNeighborIndex<O>,ArrayDBIDs,DoubleDistance>

Parameters:

database - Representation to use

Returns:

Actual distance query.

getDistanceFactory

public DoubleDistance getDistanceFactory()

Description copied from interface: SimilarityFunction

Get a distance factory.

Specified by:

getDistanceFactory in interface SimilarityFunction<O,DoubleDistance>

Returns:

distance factory