de.lmu.ifi.dbs.elki.index.projected

Class ProjectedIndex.ProjectedRKNNQuery<D extends Distance<D>>

java.lang.Object

de.lmu.ifi.dbs.elki.index.projected.ProjectedIndex.ProjectedRKNNQuery<D>

Type Parameters:

D - Distance type

All Implemented Interfaces:

DatabaseQuery, RKNNQuery<O,D>

Enclosing class:

ProjectedIndex<O,I>

 class ProjectedIndex.ProjectedRKNNQuery<D extends Distance<D>>
extends Object
implements RKNNQuery<O,D>

Class to proxy RkNN queries.

Field Summary

Fields

Modifier and Type	Field and Description
(package private) DistanceQuery<O,D>	distq Distance query for refinement.
(package private) RKNNQuery<I,D>	inner Inner RkNN query.

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
ProjectedIndex.ProjectedRKNNQuery(DistanceQuery<O,D> distanceQuery, RKNNQuery<I,D> inner) 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 java.lang.Object

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

Field Detail

inner

RKNNQuery<I,D extends Distance<D>> inner

Inner RkNN query.

distq

DistanceQuery<O,D extends Distance<D>> distq

Distance query for refinement.

Constructor Detail

ProjectedIndex.ProjectedRKNNQuery

public ProjectedIndex.ProjectedRKNNQuery(DistanceQuery<O,D> distanceQuery,
                                 RKNNQuery<I,D> inner)

Constructor.

Parameters:

inner - Inner RkNN query.

Method Detail

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 Distance<D>>

Parameters:

id - query object ID

k - number of neighbors requested

Returns:

reverse k nearest neighbors

getRKNNForObject

public DistanceDBIDList<D> getRKNNForObject(O obj,
                                   int k)

Description copied from interface: RKNNQuery

Get the reverse k nearest neighbors for a particular object.

Specified by:

getRKNNForObject in interface RKNNQuery<O,D extends Distance<D>>

Parameters:

obj - query object instance

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.

Specified by:

getRKNNForBulkDBIDs in interface RKNNQuery<O,D extends Distance<D>>

Parameters:

ids - query object IDs

k - number of neighbors requested

Returns:

reverse k nearest neighbors