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

Class AbstractSpatialDistanceFunction

java.lang.Object

de.lmu.ifi.dbs.elki.distance.distancefunction.AbstractPrimitiveDistanceFunction<NumberVector>

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

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

All Implemented Interfaces:

DistanceFunction<NumberVector>, NumberVectorDistanceFunction<NumberVector>, PrimitiveDistanceFunction<NumberVector>, SpatialPrimitiveDistanceFunction<NumberVector>

Direct Known Subclasses:

ArcCosineDistanceFunction, BrayCurtisDistanceFunction, CanberraDistanceFunction, ChiSquaredDistanceFunction, ClarkDistanceFunction, CosineDistanceFunction, DimensionSelectingLatLngDistanceFunction, HistogramIntersectionDistanceFunction, HistogramMatchDistanceFunction, JeffreyDivergenceDistanceFunction, Kulczynski1DistanceFunction, LatLngDistanceFunction, LngLatDistanceFunction, WeightedCanberraDistanceFunction

public abstract class AbstractSpatialDistanceFunction
extends AbstractNumberVectorDistanceFunction
implements SpatialPrimitiveDistanceFunction<NumberVector>

Abstract base class for typical distance functions that allow rectangle-to-rectangle lower bounds. These distances can then be used with R*-trees for acceleration. This class is largely a convenience class, to make implementing this type of distance functions easier.

Author:

Erich Schubert

Constructor Summary

Constructors

Constructor and Description
AbstractSpatialDistanceFunction()

Method Summary

Methods

Modifier and Type	Method and Description
<T extends NumberVector> SpatialPrimitiveDistanceQuery<T>	instantiate(Relation<T> relation) Instantiate with a database to get the actual distance query.

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

dimensionality, dimensionality, dimensionality, dimensionality, getInputTypeRestriction

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

distance, isMetric, 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.distancefunction.SpatialPrimitiveDistanceFunction

minDist

Methods inherited from interface de.lmu.ifi.dbs.elki.distance.distancefunction.PrimitiveDistanceFunction

distance, getInputTypeRestriction

Methods inherited from interface de.lmu.ifi.dbs.elki.distance.distancefunction.DistanceFunction

isMetric, isSymmetric

Methods inherited from interface de.lmu.ifi.dbs.elki.distance.distancefunction.NumberVectorDistanceFunction

distance

Constructor Detail

AbstractSpatialDistanceFunction

public AbstractSpatialDistanceFunction()

Method Detail

instantiate

public <T extends NumberVector> SpatialPrimitiveDistanceQuery<T> instantiate(Relation<T> relation)

Description copied from class: AbstractPrimitiveDistanceFunction

Instantiate with a database to get the actual distance query.

Specified by:

instantiate in interface DistanceFunction<NumberVector>

Specified by:

instantiate in interface SpatialPrimitiveDistanceFunction<NumberVector>

Overrides:

instantiate in class AbstractPrimitiveDistanceFunction<NumberVector>

Parameters:

relation - Representation

Returns:

Actual distance query.