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>, InspectionUtilFrequentlyScanned, Parameterizable

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

Distance function used in the DiSH algorithm.

Nested Class Summary

static class	DiSHDistanceFunction.Instance<V extends NumberVector<?,?>> The actual instance bound to a particular database.
static class	DiSHDistanceFunction.Parameterizer Parameterization class.

Field Summary

(package private) static Logging

logger 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

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

Method Summary

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

logger

static Logging logger

Logger for debug.

Constructor Detail

DiSHDistanceFunction

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

Constructor.

Parameters:

indexFactory -

epsilon -

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