de.lmu.ifi.dbs.elki.index.invertedlist

Class InMemoryInvertedIndex.ArcCosineRangeQuery

java.lang.Object

de.lmu.ifi.dbs.elki.database.query.range.AbstractDistanceRangeQuery<V>

de.lmu.ifi.dbs.elki.index.invertedlist.InMemoryInvertedIndex.ArcCosineRangeQuery

All Implemented Interfaces:

DatabaseQuery, RangeQuery<V>

Enclosing class:

InMemoryInvertedIndex<V extends NumberVector>

protected class InMemoryInvertedIndex.ArcCosineRangeQuery
extends AbstractDistanceRangeQuery<V>

kNN query object, for cosine distance.

Author:

Erich Schubert

Field Summary

Fields inherited from class de.lmu.ifi.dbs.elki.database.query.range.AbstractDistanceRangeQuery

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
ArcCosineRangeQuery(DistanceQuery<V> distanceQuery) Constructor.

Method Summary

Modifier and Type	Method and Description
DoubleDBIDList	getRangeForObject(V obj, double range) Get the nearest neighbors for a particular object in a given query range

Methods inherited from class de.lmu.ifi.dbs.elki.database.query.range.AbstractDistanceRangeQuery

getRangeForDBID

Methods inherited from class java.lang.Object

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

Constructor Detail

ArcCosineRangeQuery

public ArcCosineRangeQuery(DistanceQuery<V> distanceQuery)

Constructor.

Parameters:

distanceQuery - Distance query

Method Detail

getRangeForObject

public DoubleDBIDList getRangeForObject(V obj,
                                        double range)

Description copied from interface: RangeQuery

Get the nearest neighbors for a particular object in a given query range

Specified by:

getRangeForObject in interface RangeQuery<V extends NumberVector>

Specified by:

getRangeForObject in class AbstractDistanceRangeQuery<V extends NumberVector>

Parameters:

obj - Query object

range - Query range

Returns:

neighbors