de.lmu.ifi.dbs.elki.distance.distancefunction.timeseries
Class ERPDistanceFunction

java.lang.Object
  de.lmu.ifi.dbs.elki.distance.distancefunction.AbstractPrimitiveDistanceFunction<NumberVector<?,?>,DoubleDistance>
      de.lmu.ifi.dbs.elki.distance.distancefunction.AbstractVectorDoubleDistanceFunction
          de.lmu.ifi.dbs.elki.distance.distancefunction.timeseries.AbstractEditDistanceFunction
              de.lmu.ifi.dbs.elki.distance.distancefunction.timeseries.ERPDistanceFunction

All Implemented Interfaces:

DistanceFunction<NumberVector<?,?>,DoubleDistance>, PrimitiveDistanceFunction<NumberVector<?,?>,DoubleDistance>, PrimitiveDoubleDistanceFunction<NumberVector<?,?>>, InspectionUtilFrequentlyScanned, Parameterizable

@Title(value="Edit Distance with Real Penalty")
@Reference(authors="L. Chen and R. Ng",
           title="On the marriage of Lp-norms and edit distance",
           booktitle="VLDB \'04: Proceedings of the Thirtieth international conference on Very large data bases",
           url="http://www.vldb.org/conf/2004/RS21P2.PDF")
public class ERPDistanceFunction
extends AbstractEditDistanceFunction

Provides the Edit Distance With Real Penalty distance for FeatureVectors.

Nested Class Summary

static class

ERPDistanceFunction.Parameterizer Parameterization class.

Field Summary

private double	g Keeps the currently set g.
static OptionID	G_ID G parameter

Fields inherited from class de.lmu.ifi.dbs.elki.distance.distancefunction.timeseries.AbstractEditDistanceFunction

bandSize, BANDSIZE_ID

Constructor Summary

ERPDistanceFunction(double bandSize, double g)
Constructor.

Method Summary

double	doubleDistance(NumberVector<?,?> v1, NumberVector<?,?> v2) Provides the Edit Distance With Real Penalty distance between the given two vectors.
boolean	equals(Object obj)

Methods inherited from class de.lmu.ifi.dbs.elki.distance.distancefunction.timeseries.AbstractEditDistanceFunction

getInputTypeRestriction

Methods inherited from class de.lmu.ifi.dbs.elki.distance.distancefunction.AbstractVectorDoubleDistanceFunction

distance, getDistanceFactory

Methods inherited from class de.lmu.ifi.dbs.elki.distance.distancefunction.AbstractPrimitiveDistanceFunction

instantiate, isMetric, isSymmetric

Methods inherited from class java.lang.Object

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

Methods inherited from interface de.lmu.ifi.dbs.elki.distance.distancefunction.DistanceFunction

instantiate, isMetric, isSymmetric

Field Detail

G_ID

public static final OptionID G_ID

G parameter

g

private double g

Keeps the currently set g.

Constructor Detail

ERPDistanceFunction

public ERPDistanceFunction(double bandSize,
                           double g)

Constructor.

Parameters:

bandSize - Band size

g - G parameter

Method Detail

doubleDistance

public double doubleDistance(NumberVector<?,?> v1,
                             NumberVector<?,?> v2)

Provides the Edit Distance With Real Penalty distance between the given two vectors.

Parameters:

v1 - first Object

v2 - second Object

Returns:

the Edit Distance With Real Penalty distance between the given two vectors as an instance of DoubleDistance.

equals

public boolean equals(Object obj)

Overrides:

equals in class AbstractEditDistanceFunction