de.lmu.ifi.dbs.elki.index.tree.metrical.mtreevariants.query

Class MTreeKNNQuery<O>

java.lang.Object

de.lmu.ifi.dbs.elki.database.query.knn.AbstractDistanceKNNQuery<O>

de.lmu.ifi.dbs.elki.index.tree.metrical.mtreevariants.query.MTreeKNNQuery<O>

Type Parameters:

O - Object type

All Implemented Interfaces:

DatabaseQuery, KNNQuery<O>

public class MTreeKNNQuery<O>
extends AbstractDistanceKNNQuery<O>

Instance of a KNN query for a particular spatial index.

Since:

0.4.0

Author:

Erich Schubert

Field Summary

Fields

Modifier and Type	Field and Description
protected AbstractMTree<O,?,?,?>	index The index to use

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

distanceQuery

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
MTreeKNNQuery(AbstractMTree<O,?,?,?> index, DistanceQuery<O> distanceQuery) Constructor.

Method Summary

Modifier and Type	Method and Description
KNNList	getKNNForObject(O q, int k) Get the k nearest neighbors for a particular id.

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

getKNNForBulkDBIDs, getKNNForDBID, getRelation

Methods inherited from class java.lang.Object

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

Field Detail

index

protected final AbstractMTree<O,?,?,?> index

The index to use

Constructor Detail

MTreeKNNQuery

public MTreeKNNQuery(AbstractMTree<O,?,?,?> index,
                     DistanceQuery<O> distanceQuery)

Constructor.

Parameters:

index - Index to use

distanceQuery - Distance query used

Method Detail

getKNNForObject

public KNNList getKNNForObject(O q,
                               int k)

Description copied from interface: KNNQuery

Get the k nearest neighbors for a particular id.

Specified by:

getKNNForObject in interface KNNQuery<O>

Specified by:

getKNNForObject in class AbstractDistanceKNNQuery<O>

Parameters:

q - Query object

k - Number of neighbors requested

Returns:

neighbors