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

Class GridBasedReferencePoints

java.lang.Object

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

All Implemented Interfaces:

ReferencePointsHeuristic

public class GridBasedReferencePoints
extends Object
implements ReferencePointsHeuristic

Grid-based strategy to pick reference points.

Author:

Erich Schubert

Nested Class Summary

Nested Classes

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

Field Summary

Fields

Modifier and Type	Field and Description
protected int	gridres Holds the grid resolution.
protected double	gridscale Holds the grid scale.
private static Logging	LOG Class logger.

Constructor Summary

Constructors

Constructor and Description
GridBasedReferencePoints(int gridres, double gridscale) Constructor.

Method Summary

Modifier and Type	Method and Description
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

LOG

private static final Logging LOG

Class logger.

gridres

protected int gridres

Holds the grid resolution.

gridscale

protected double gridscale

Holds the grid scale.

Constructor Detail

GridBasedReferencePoints

public GridBasedReferencePoints(int gridres,
                                double gridscale)

Constructor.

Parameters:

gridres - Grid resolution

gridscale - Grid scaling

Method Detail

getReferencePoints

public 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.