de.lmu.ifi.dbs.elki.index.distancematrix

Class PrecomputedDistanceMatrix.PrecomputedKNNQuery

java.lang.Object

de.lmu.ifi.dbs.elki.index.distancematrix.PrecomputedDistanceMatrix.PrecomputedKNNQuery

All Implemented Interfaces:

DatabaseQuery, KNNQuery<O>

Enclosing class:

PrecomputedDistanceMatrix<O>

private class PrecomputedDistanceMatrix.PrecomputedKNNQuery
extends java.lang.Object
implements KNNQuery<O>

kNN query using the distance matrix.

Author:

Erich Schubert

Field Summary

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

Modifier	Constructor and Description
private	PrecomputedKNNQuery()

Method Summary

Modifier and Type	Method and Description
java.util.List<? extends KNNList>	getKNNForBulkDBIDs(ArrayDBIDs ids, int k) Bulk query method
KNNList	getKNNForDBID(DBIDRef id, int k) Get the k nearest neighbors for a particular id.
KNNList	getKNNForObject(O obj, int k) Get the k nearest neighbors for a particular id.

Methods inherited from class java.lang.Object

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

Constructor Detail

PrecomputedKNNQuery

private PrecomputedKNNQuery()

Method Detail

getKNNForDBID

public KNNList getKNNForDBID(DBIDRef id,
                             int k)

Description copied from interface: KNNQuery

Get the k nearest neighbors for a particular id.

Specified by:

getKNNForDBID in interface KNNQuery<O>

Parameters:

id - query object ID

k - Number of neighbors requested

Returns:

neighbors

getKNNForBulkDBIDs

public java.util.List<? extends KNNList> getKNNForBulkDBIDs(ArrayDBIDs ids,
                                                            int k)

Description copied from interface: KNNQuery

Bulk query method

Specified by:

getKNNForBulkDBIDs in interface KNNQuery<O>

Parameters:

ids - query object IDs

k - Number of neighbors requested

Returns:

neighbors

getKNNForObject

public KNNList getKNNForObject(O obj,
                               int k)

Description copied from interface: KNNQuery

Get the k nearest neighbors for a particular id.

Specified by:

getKNNForObject in interface KNNQuery<O>

Parameters:

obj - Query object

k - Number of neighbors requested

Returns:

neighbors