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

Class LocallyWeightedDistanceFunction.Instance<V extends NumberVector<?,?>>

java.lang.Object

de.lmu.ifi.dbs.elki.database.query.AbstractDataBasedQuery<O>

de.lmu.ifi.dbs.elki.database.query.distance.AbstractDistanceQuery<O,D>

de.lmu.ifi.dbs.elki.database.query.distance.AbstractDatabaseDistanceQuery<O,D>

de.lmu.ifi.dbs.elki.distance.distancefunction.AbstractIndexBasedDistanceFunction.Instance<V,LocalProjectionIndex<V,?>,DoubleDistance,LocallyWeightedDistanceFunction<? super V>>

de.lmu.ifi.dbs.elki.distance.distancefunction.LocallyWeightedDistanceFunction.Instance<V>

All Implemented Interfaces:

DatabaseQuery, DistanceQuery<V,DoubleDistance>, FilteredLocalPCABasedDistanceFunction.Instance<V,LocalProjectionIndex<V,?>,DoubleDistance>, IndexBasedDistanceFunction.Instance<V,LocalProjectionIndex<V,?>,DoubleDistance>

Enclosing class:

LocallyWeightedDistanceFunction<V extends NumberVector<?,?>>

public static class LocallyWeightedDistanceFunction.Instance<V extends NumberVector<?,?>>
extends AbstractIndexBasedDistanceFunction.Instance<V,LocalProjectionIndex<V,?>,DoubleDistance,LocallyWeightedDistanceFunction<? super V>>
implements FilteredLocalPCABasedDistanceFunction.Instance<V,LocalProjectionIndex<V,?>,DoubleDistance>

Instance of this distance for a particular database.

Field Summary

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

index, parent

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

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
LocallyWeightedDistanceFunction.Instance(Relation<V> database, LocalProjectionIndex<V,?> index, LocallyWeightedDistanceFunction<? super V> distanceFunction) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
DoubleDistance	centerDistance(SpatialComparable mbr1, SpatialComparable mbr2)
DoubleDistance	distance(DBID id1, DBID id2) Computes the distance between two given real vectors according to this distance function.
DoubleDistance	distance(SpatialComparable mbr1, SpatialComparable mbr2)
DoubleDistance	minDistBROKEN(SpatialComparable mbr, V v)

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

getDistanceFunction, getIndex

Methods inherited from class de.lmu.ifi.dbs.elki.database.query.distance.AbstractDatabaseDistanceQuery

distance, distance, distance

Methods inherited from class de.lmu.ifi.dbs.elki.database.query.distance.AbstractDistanceQuery

getDistanceFactory, infiniteDistance, nullDistance, undefinedDistance

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

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.distance.distancefunction.IndexBasedDistanceFunction.Instance

getIndex

Methods inherited from interface de.lmu.ifi.dbs.elki.database.query.distance.DistanceQuery

distance, distance, distance, getDistanceFactory, getDistanceFunction, getRelation, infiniteDistance, nullDistance, undefinedDistance

Constructor Detail

LocallyWeightedDistanceFunction.Instance

public LocallyWeightedDistanceFunction.Instance(Relation<V> database,
                                        LocalProjectionIndex<V,?> index,
                                        LocallyWeightedDistanceFunction<? super V> distanceFunction)

Constructor.

Parameters:

database - Database

index - Index

distanceFunction - Distance Function

Method Detail

distance

public DoubleDistance distance(DBID id1,
                      DBID id2)

Computes the distance between two given real vectors according to this distance function.

Specified by:

distance in interface DistanceQuery<V extends NumberVector<?,?>,DoubleDistance>

Specified by:

distance in class AbstractDistanceQuery<V extends NumberVector<?,?>,DoubleDistance>

Parameters:

id1 - first object id

id2 - second object id

Returns:

the distance between two given real vectors according to this distance function

minDistBROKEN

public DoubleDistance minDistBROKEN(SpatialComparable mbr,
                           V v)

distance

public DoubleDistance distance(SpatialComparable mbr1,
                      SpatialComparable mbr2)

centerDistance

public DoubleDistance centerDistance(SpatialComparable mbr1,
                            SpatialComparable mbr2)