de.lmu.ifi.dbs.elki.index.preprocessed.preference

Class AbstractPreferenceVectorIndex<NV extends NumberVector<?>>

java.lang.Object

de.lmu.ifi.dbs.elki.index.AbstractIndex<O>

de.lmu.ifi.dbs.elki.index.preprocessed.AbstractPreprocessorIndex<NV,BitSet>

de.lmu.ifi.dbs.elki.index.preprocessed.preference.AbstractPreferenceVectorIndex<NV>

Type Parameters:

NV - Number vector

All Implemented Interfaces:

Index, PreferenceVectorIndex<NV>, Result

Direct Known Subclasses:

DiSHPreferenceVectorIndex, HiSCPreferenceVectorIndex

public abstract class AbstractPreferenceVectorIndex<NV extends NumberVector<?>>
extends AbstractPreprocessorIndex<NV,BitSet>
implements PreferenceVectorIndex<NV>

Abstract base class for preference vector based algorithms.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	AbstractPreferenceVectorIndex.Factory<V extends NumberVector<?>,I extends PreferenceVectorIndex<V>> Factory class.

Field Summary

Fields inherited from class de.lmu.ifi.dbs.elki.index.preprocessed.AbstractPreprocessorIndex

storage

Fields inherited from class de.lmu.ifi.dbs.elki.index.AbstractIndex

relation

Constructor Summary

Constructors

Constructor and Description
AbstractPreferenceVectorIndex(Relation<NV> relation) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
BitSet	getPreferenceVector(DBIDRef objid) Get the precomputed preference vector for a particular object ID.
protected abstract void	preprocess() Preprocessing step.

Methods inherited from class de.lmu.ifi.dbs.elki.index.preprocessed.AbstractPreprocessorIndex

getLogger

Methods inherited from class de.lmu.ifi.dbs.elki.index.AbstractIndex

delete, deleteAll, getLongName, getPageFileStatistics, getShortName, insert, insertAll

Methods inherited from class java.lang.Object

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

Methods inherited from interface de.lmu.ifi.dbs.elki.index.Index

delete, deleteAll, getPageFileStatistics, insert, insertAll

Methods inherited from interface de.lmu.ifi.dbs.elki.result.Result

getLongName, getShortName

Constructor Detail

AbstractPreferenceVectorIndex

public AbstractPreferenceVectorIndex(Relation<NV> relation)

Constructor.

Parameters:

relation - Relation to use

Method Detail

preprocess

protected abstract void preprocess()

Preprocessing step.

getPreferenceVector

public BitSet getPreferenceVector(DBIDRef objid)

Description copied from interface: PreferenceVectorIndex

Get the precomputed preference vector for a particular object ID.

Specified by:

getPreferenceVector in interface PreferenceVectorIndex<NV extends NumberVector<?>>

Parameters:

objid - Object ID

Returns:

Matrix