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

Class MkTreeRKNNQuery<O>

java.lang.Object

de.lmu.ifi.dbs.elki.database.query.rknn.AbstractRKNNQuery<O>

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

All Implemented Interfaces:

DatabaseQuery, RKNNQuery<O>

public class MkTreeRKNNQuery<O>
extends AbstractRKNNQuery<O>

Instance of a rKNN query for a particular spatial index.

Author:

Erich Schubert

Field Summary

Fields

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

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

distanceQuery, 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
MkTreeRKNNQuery(AbstractMkTree<O,?,?,?> index, DistanceQuery<O> distanceQuery) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
List<? extends DoubleDBIDList>	getRKNNForBulkDBIDs(ArrayDBIDs ids, int k) Bulk query method for reverse k nearest neighbors for ids.
DoubleDBIDList	getRKNNForDBID(DBIDRef id, int k) Get the reverse k nearest neighbors for a particular id.
DoubleDBIDList	getRKNNForObject(O obj, int k) Get the reverse k nearest neighbors for a particular object.

Methods inherited from class java.lang.Object

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

Field Detail

index

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

The index to use

Constructor Detail

MkTreeRKNNQuery

public MkTreeRKNNQuery(AbstractMkTree<O,?,?,?> index,
               DistanceQuery<O> distanceQuery)

Constructor.

Parameters:

index - Index to use

distanceQuery - Distance query used

Method Detail

getRKNNForObject

public DoubleDBIDList getRKNNForObject(O obj,
                              int k)

Description copied from interface: RKNNQuery

Get the reverse k nearest neighbors for a particular object.

Parameters:

obj - query object instance

k - number of neighbors requested

Returns:

reverse k nearest neighbors

getRKNNForDBID

public DoubleDBIDList getRKNNForDBID(DBIDRef id,
                            int k)

Description copied from interface: RKNNQuery

Get the reverse k nearest neighbors for a particular id.

Specified by:

getRKNNForDBID in interface RKNNQuery<O>

Specified by:

getRKNNForDBID in class AbstractRKNNQuery<O>

Parameters:

id - query object ID

k - number of neighbors requested

Returns:

reverse k nearest neighbors

getRKNNForBulkDBIDs

public List<? extends DoubleDBIDList> getRKNNForBulkDBIDs(ArrayDBIDs ids,
                                                 int k)

Description copied from interface: RKNNQuery

Bulk query method for reverse k nearest neighbors for ids.

Parameters:

ids - query object IDs

k - number of neighbors requested

Returns:

reverse k nearest neighbors