Package org.aksw.limes.core.measures.measure.pointsets.frechet

Class GeOxygeneFrechetMeasure

java.lang.Object

org.aksw.limes.core.measures.measure.AMeasure

org.aksw.limes.core.measures.measure.pointsets.APointsetsMeasure

org.aksw.limes.core.measures.measure.pointsets.frechet.GeOxygeneFrechetMeasure

All Implemented Interfaces:

IMeasure, IPointsetsMeasure

public class GeOxygeneFrechetMeasure
extends APointsetsMeasure

Version:

Jul 15, 2016

Author:

Mohamed Sherif (sherif@informatik.uni-leipzig.de)

Field Summary

Fields inherited from class org.aksw.limes.core.measures.measure.pointsets.APointsetsMeasure

computations, USE_GREAT_ELLIPTIC_DISTANCE

Constructor Summary

Constructors

Constructor	Description
GeOxygeneFrechetMeasure()

Method Summary

Modifier and Type	Method	Description
double	computeDistance(Polygon X, Polygon Y, double threshold)
static double	distance(Polygon X, Polygon Y, double threshold)
int	getComputations()
String	getName()	Returns name of a measure.
double	getRuntimeApproximation(double mappingSize)	Returns the runtime approximation of a measure.
double	getSimilarity(Instance instance1, Instance instance2, String property1, String property2)	Returns the similarity between two instances, given their corresponding properties.
String	getType()	Returns type of a measure.
AMapping	run(Set<Polygon> source, Set<Polygon> target, double threshold)	Computes the SetMeasure distance for a source and target set
static fr.ign.cogit.geoxygene.api.spatial.coordgeom.ILineSegment	toLineSegment(Polygon poly)	Convert polygon to ILineSegment

Methods inherited from class org.aksw.limes.core.measures.measure.pointsets.APointsetsMeasure

getSimilarity, pointToPointDistance

Methods inherited from class java.lang.Object

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

Constructor Detail

GeOxygeneFrechetMeasure

public GeOxygeneFrechetMeasure()

Method Detail

toLineSegment

public static fr.ign.cogit.geoxygene.api.spatial.coordgeom.ILineSegment toLineSegment(Polygon poly)

Convert polygon to ILineSegment

Parameters:

poly - Polygon

Returns:

ILineSegment out of the input poly

distance

public static double distance(Polygon X,
                              Polygon Y,
                              double threshold)

Parameters:

X - Polygon

Y - Polygon

threshold - distance threshold

Returns:

the GeOxygeneFrechet distance between X and Y

computeDistance

public double computeDistance(Polygon X,
                              Polygon Y,
                              double threshold)

getComputations

public int getComputations()

Specified by:

getComputations in interface IPointsetsMeasure

Overrides:

getComputations in class APointsetsMeasure

getName

public String getName()

Description copied from interface: IMeasure

Returns name of a measure.

Returns:

Measure name as a string

run

public AMapping run(Set<Polygon> source,
                    Set<Polygon> target,
                    double threshold)

Computes the SetMeasure distance for a source and target set

Parameters:

source - Source polygons

target - Target polygons

threshold - Distance threshold

Returns:

Mapping from source to target resources

getType

public String getType()

Description copied from interface: IMeasure

Returns type of a measure.

Returns:

The runtime of the measure

getSimilarity

public double getSimilarity(Instance instance1,
                            Instance instance2,
                            String property1,
                            String property2)

Description copied from interface: IMeasure

Returns the similarity between two instances, given their corresponding properties.

Parameters:

instance1 - , the source instance

instance2 - , the target instance

property1 - , the source property

property2 - , the target property

Returns:

The similarity of the instances

getRuntimeApproximation

public double getRuntimeApproximation(double mappingSize)

Description copied from interface: IMeasure

Returns the runtime approximation of a measure.

Parameters:

mappingSize - , the mapping size returned by the measure

Returns:

The runtime of the measure