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

Class MkTreeRKNNQuery<O,D extends NumberDistance<D,?>>

java.lang.Object

de.lmu.ifi.dbs.elki.database.query.AbstractDataBasedQuery<O>

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

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

All Implemented Interfaces:

DatabaseQuery, RKNNQuery<O,D>

public class MkTreeRKNNQuery<O,D extends NumberDistance<D,?>>
extends AbstractRKNNQuery<O,D>

Instance of a rKNN query for a particular spatial index.

Field Summary

Fields

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

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

distanceQuery

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

Method Summary

Methods

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

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

Field Detail

index

protected final AbstractMkTree<O,D extends NumberDistance<D,?>,?,?,?> index

The index to use

Constructor Detail

MkTreeRKNNQuery

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

Constructor.

Parameters:

index - Index to use

distanceQuery - Distance query used

Method Detail

getRKNNForObject

public DistanceDBIDList<D> 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 DistanceDBIDList<D> 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,D extends NumberDistance<D,?>>

Specified by:

getRKNNForDBID in class AbstractRKNNQuery<O,D extends NumberDistance<D,?>>

Parameters:

id - query object ID

k - number of neighbors requested

Returns:

reverse k nearest neighbors

getRKNNForBulkDBIDs

public List<? extends DistanceDBIDList<D>> 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