de.lmu.ifi.dbs.elki.utilities.referencepoints

Class StarBasedReferencePoints

java.lang.Object

de.lmu.ifi.dbs.elki.utilities.referencepoints.StarBasedReferencePoints

All Implemented Interfaces:

ReferencePointsHeuristic

public class StarBasedReferencePoints
extends java.lang.Object
implements ReferencePointsHeuristic

Star-based strategy to pick reference points.

Since:

0.3

Author:

Erich Schubert

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	StarBasedReferencePoints.Parameterizer Parameterization class.

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean	nocenter Exclude the center vector.
protected double	scale Scaling factor.

Constructor Summary

Constructors

Constructor and Description
StarBasedReferencePoints(boolean nocenter, double scale) Constructor.

Method Summary

Modifier and Type	Method and Description
java.util.Collection<? extends NumberVector>	getReferencePoints(Relation<? extends NumberVector> db) Get the reference points for the given database.

Methods inherited from class java.lang.Object

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

Field Detail

nocenter

protected boolean nocenter

Exclude the center vector.

scale

protected double scale

Scaling factor.

Constructor Detail

StarBasedReferencePoints

public StarBasedReferencePoints(boolean nocenter,
                                double scale)

Constructor.

Parameters:

nocenter - Do not include center point

scale - Scaling factor

Method Detail

getReferencePoints

public java.util.Collection<? extends NumberVector> getReferencePoints(Relation<? extends NumberVector> db)

Description copied from interface: ReferencePointsHeuristic

Get the reference points for the given database.

Specified by:

getReferencePoints in interface ReferencePointsHeuristic

Parameters:

db - Database

Returns:

Collection of reference points.