de.lmu.ifi.dbs.elki.distance.distancefunction.subspace

Class DiSHDistanceFunction

java.lang.Object

de.lmu.ifi.dbs.elki.distance.distancefunction.AbstractDatabaseDistanceFunction<O,D>

de.lmu.ifi.dbs.elki.distance.distancefunction.AbstractIndexBasedDistanceFunction<V,P,PreferenceVectorBasedCorrelationDistance>

de.lmu.ifi.dbs.elki.distance.distancefunction.subspace.AbstractPreferenceVectorBasedCorrelationDistanceFunction<NumberVector<?>,DiSHPreferenceVectorIndex<NumberVector<?>>>

de.lmu.ifi.dbs.elki.distance.distancefunction.subspace.DiSHDistanceFunction

All Implemented Interfaces:

DistanceFunction<NumberVector<?>,PreferenceVectorBasedCorrelationDistance>, IndexBasedDistanceFunction<NumberVector<?>,PreferenceVectorBasedCorrelationDistance>, Parameterizable

public class DiSHDistanceFunction
extends AbstractPreferenceVectorBasedCorrelationDistanceFunction<NumberVector<?>,DiSHPreferenceVectorIndex<NumberVector<?>>>

Distance function used in the DiSH algorithm.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	DiSHDistanceFunction.Instance<V extends NumberVector<?>> The actual instance bound to a particular database.
static class	DiSHDistanceFunction.Parameterizer Parameterization class.

Field Summary

Fields

Modifier and Type	Field and Description
private static Logging	LOG Logger for debug.

Fields inherited from class de.lmu.ifi.dbs.elki.distance.distancefunction.subspace.AbstractPreferenceVectorBasedCorrelationDistanceFunction

EPSILON_ID

Fields inherited from class de.lmu.ifi.dbs.elki.distance.distancefunction.AbstractIndexBasedDistanceFunction

indexFactory

Fields inherited from interface de.lmu.ifi.dbs.elki.distance.distancefunction.IndexBasedDistanceFunction

INDEX_ID

Constructor Summary

Constructors

Constructor and Description
DiSHDistanceFunction(DiSHPreferenceVectorIndex.Factory<NumberVector<?>> indexFactory, double epsilon) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
int	getMinpts() Get the minpts value.
<T extends NumberVector<?>> DiSHDistanceFunction.Instance<T>	instantiate(Relation<T> database) Instantiate with a database to get the actual distance query.

Methods inherited from class de.lmu.ifi.dbs.elki.distance.distancefunction.subspace.AbstractPreferenceVectorBasedCorrelationDistanceFunction

equals, getDistanceFactory, getEpsilon

Methods inherited from class de.lmu.ifi.dbs.elki.distance.distancefunction.AbstractIndexBasedDistanceFunction

getInputTypeRestriction, isMetric, isSymmetric

Methods inherited from class java.lang.Object

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

Field Detail

LOG

private static final Logging LOG

Logger for debug.

Constructor Detail

DiSHDistanceFunction

public DiSHDistanceFunction(DiSHPreferenceVectorIndex.Factory<NumberVector<?>> indexFactory,
                    double epsilon)

Constructor.

Parameters:

indexFactory - DiSH index factory

epsilon - Epsilon value

Method Detail

instantiate

public <T extends NumberVector<?>> DiSHDistanceFunction.Instance<T> instantiate(Relation<T> database)

Description copied from interface: DistanceFunction

Instantiate with a database to get the actual distance query.

Parameters:

database - The representation to use

Returns:

Actual distance query.

getMinpts

public int getMinpts()

Get the minpts value.

Returns:

the minpts parameter