de.lmu.ifi.dbs.elki.utilities.referencepoints
Class RandomGeneratedReferencePoints<O extends NumberVector<O,?>>

java.lang.Object
  de.lmu.ifi.dbs.elki.logging.AbstractLoggable
      de.lmu.ifi.dbs.elki.utilities.referencepoints.RandomGeneratedReferencePoints<O>

Type Parameters:

O - Object type

All Implemented Interfaces:

Parameterizable, ReferencePointsHeuristic<O>

public class RandomGeneratedReferencePoints<O extends NumberVector<O,?>>
extends AbstractLoggable
implements ReferencePointsHeuristic<O>

Reference points generated randomly within the used data space.

Author:

Erich Schubert

Field Summary

static OptionID	N_ID OptionID for N_PARAM
private IntParameter	N_PARAM Parameter to specify the number of requested reference points.
protected int	samplesize Holds the value of N_PARAM.
protected double	scale Holds the value of SCALE_PARAM.
static OptionID	SCALE_ID OptionID for SCALE_PARAM
private DoubleParameter	SCALE_PARAM Parameter for additional scaling of the space, to allow out-of-space reference points.

Fields inherited from class de.lmu.ifi.dbs.elki.logging.AbstractLoggable

debug, logger

Constructor Summary

RandomGeneratedReferencePoints(Parameterization config)
Constructor, adhering to Parameterizable

Method Summary

Collection<O>

getReferencePoints(Database<O> db) Get the reference points for the given database.

Methods inherited from class de.lmu.ifi.dbs.elki.logging.AbstractLoggable

debugFine, debugFiner, debugFinest, exception, progress, verbose, warning

Methods inherited from class java.lang.Object

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

Field Detail

N_ID

public static final OptionID N_ID

OptionID for N_PARAM

N_PARAM

private final IntParameter N_PARAM

Parameter to specify the number of requested reference points.

Key: -generate.n

SCALE_ID

public static final OptionID SCALE_ID

OptionID for SCALE_PARAM

SCALE_PARAM

private final DoubleParameter SCALE_PARAM

Parameter for additional scaling of the space, to allow out-of-space reference points.

Key: -generate.scale

samplesize

protected int samplesize

Holds the value of N_PARAM.

scale

protected double scale

Holds the value of SCALE_PARAM.

Constructor Detail

RandomGeneratedReferencePoints

public RandomGeneratedReferencePoints(Parameterization config)

Constructor, adhering to Parameterizable

Parameters:

config - Parameterization

Method Detail

getReferencePoints

public Collection<O> getReferencePoints(Database<O> db)

Description copied from interface: ReferencePointsHeuristic

Get the reference points for the given database.

Specified by:

getReferencePoints in interface ReferencePointsHeuristic<O extends NumberVector<O,?>>

Parameters:

db - Database

Returns:

Collection of reference points.