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>, NumberVectorDistanceFunction<DoubleDistance>, PrimitiveDistanceFunction<NumberVector<?>,DoubleDistance>, PrimitiveDoubleDistanceFunction<NumberVector<?>>, 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

Nested Classes

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

Field Summary

Fields

Modifier and Type	Field and Description
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

Constructors

Constructor and Description
ERPDistanceFunction(double bandSize, double g) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
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 final 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