Package elki.distance.subspace

Class SubspaceMaximumDistance

java.lang.Object

elki.distance.subspace.AbstractDimensionsSelectingDistance<NumberVector>

elki.distance.subspace.SubspaceLPNormDistance

elki.distance.subspace.SubspaceMaximumDistance

All Implemented Interfaces:

Distance<NumberVector>, Norm<NumberVector>, NumberVectorDistance<NumberVector>, PrimitiveDistance<NumberVector>, SpatialPrimitiveDistance<NumberVector>, DimensionSelectingSubspaceDistance<NumberVector>

public class SubspaceMaximumDistance
extends SubspaceLPNormDistance

Maximum distance function between NumberVectors only in specified dimensions.

Since:

0.1

Author:

Elke Achtert

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	SubspaceMaximumDistance.Par	Parameterization class.

Field Summary

Fields inherited from class elki.distance.subspace.AbstractDimensionsSelectingDistance

dimensions

Constructor Summary

Constructors

Constructor	Description
SubspaceMaximumDistance(long[] dimensions)	Constructor.

Method Summary

Modifier and Type	Method	Description
double	distance(NumberVector v1, NumberVector v2)	Computes the distance between two given DatabaseObjects according to this distance function.
boolean	equals(java.lang.Object obj)
int	hashCode()
double	minDist(SpatialComparable mbr1, SpatialComparable mbr2)	Computes the distance between the two given MBRs according to this distance function.
protected double	minDistObject(SpatialComparable mbr, NumberVector v)
double	norm(NumberVector obj)	Compute the norm of object obj.

Methods inherited from class elki.distance.subspace.SubspaceLPNormDistance

getInputTypeRestriction, getP, instantiate, isMetric

Methods inherited from class elki.distance.subspace.AbstractDimensionsSelectingDistance

getSelectedDimensions, setSelectedDimensions

Methods inherited from class java.lang.Object

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

Methods inherited from interface elki.distance.Distance

isSquared, isSymmetric

Constructor Detail

SubspaceMaximumDistance

public SubspaceMaximumDistance(long[] dimensions)

Constructor.

Parameters:

dimensions - Selected dimensions

Method Detail

distance

public double distance(NumberVector v1,
                       NumberVector v2)

Description copied from interface: PrimitiveDistance

Computes the distance between two given DatabaseObjects according to this distance function.

Specified by:

distance in interface NumberVectorDistance<NumberVector>

Specified by:

distance in interface PrimitiveDistance<NumberVector>

Overrides:

distance in class SubspaceLPNormDistance

Parameters:

v1 - first DatabaseObject

v2 - second DatabaseObject

Returns:

the distance between two given DatabaseObjects according to this distance function

minDistObject

protected double minDistObject(SpatialComparable mbr,
                               NumberVector v)

Overrides:

minDistObject in class SubspaceLPNormDistance

minDist

public double minDist(SpatialComparable mbr1,
                      SpatialComparable mbr2)

Description copied from interface: SpatialPrimitiveDistance

Computes the distance between the two given MBRs according to this distance function.

Specified by:

minDist in interface SpatialPrimitiveDistance<NumberVector>

Overrides:

minDist in class SubspaceLPNormDistance

Parameters:

mbr1 - the first MBR object

mbr2 - the second MBR object

Returns:

the distance between the two given MBRs according to this distance function

norm

public double norm(NumberVector obj)

Description copied from interface: Norm

Compute the norm of object obj.

Specified by:

norm in interface Norm<NumberVector>

Overrides:

norm in class SubspaceLPNormDistance

Parameters:

obj - Object

Returns:

Norm

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class SubspaceLPNormDistance

hashCode

public int hashCode()

Overrides:

hashCode in class SubspaceLPNormDistance