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

Class MinKDistance.Instance<T extends O>

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<T,D>

de.lmu.ifi.dbs.elki.distance.distancefunction.MinKDistance.Instance<T>

All Implemented Interfaces:

DatabaseQuery, DistanceQuery<T,D>

Enclosing class:

MinKDistance<O,D extends Distance<D>>

public class MinKDistance.Instance<T extends O>
extends AbstractDatabaseDistanceQuery<T,D>

Instance for an actual database.

Field Summary

Fields

Modifier and Type	Field and Description
private int	k Value for k
private KNNQuery<T,D>	knnQuery KNN query instance
private DistanceQuery<T,D>	parentDistanceQuery Distance query for parent distance.

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
MinKDistance.Instance(Relation<T> relation, int k, DistanceFunction<? super O,D> parentDistance) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
D	distance(DBIDRef id1, DBIDRef id2) Returns the distance between the two objects specified by their object ids.
DistanceFunction<? super T,D>	getDistanceFunction() Get the inner distance function.

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.database.query.distance.DistanceQuery

getRelation

Field Detail

knnQuery

private KNNQuery<T extends O,D extends Distance<D>> knnQuery

KNN query instance

k

private int k

Value for k

parentDistanceQuery

private DistanceQuery<T extends O,D extends Distance<D>> parentDistanceQuery

Distance query for parent distance.

Constructor Detail

MinKDistance.Instance

public MinKDistance.Instance(Relation<T> relation,
                     int k,
                     DistanceFunction<? super O,D> parentDistance)

Constructor.

Parameters:

relation - Database

k - Value of k

Method Detail

distance

public D distance(DBIDRef id1,
         DBIDRef id2)

Description copied from class: AbstractDistanceQuery

Returns the distance between the two objects specified by their object ids.

Specified by:

distance in interface DistanceQuery<T extends O,D extends Distance<D>>

Specified by:

distance in class AbstractDistanceQuery<T extends O,D extends Distance<D>>

Parameters:

id1 - first object id

id2 - second object id

Returns:

the distance between the two objects specified by their object ids

getDistanceFunction

public DistanceFunction<? super T,D> getDistanceFunction()

Description copied from interface: DistanceQuery

Get the inner distance function.

Returns:

Distance function