Package com.here.platform.location.core.mapmatching

Class DistanceEmissionProbabilityStrategy<O,V>

java.lang.Object

com.here.platform.location.core.mapmatching.DistanceEmissionProbabilityStrategy<O,V>

All Implemented Interfaces:

com.here.platform.location.core.mapmatching.EmissionProbabilityStrategy<O,V>

public class DistanceEmissionProbabilityStrategy<O,V>
extends Object
implements com.here.platform.location.core.mapmatching.EmissionProbabilityStrategy<O,V>

Computes emission probabilities for candidates based on distance. A UnsupportedOperationException is thrown for OffRoad.

See also GaussianProbabilityDistribution.

param: probabilityDistribution The probability distribution used to derive the LogProbability based on the distance param: distanceForUnknown The value in meters that will be used to calculate the emission probability for Unknown

Constructor Summary

Constructors

Constructor	Description
DistanceEmissionProbabilityStrategy(double distanceForUnknown, ProbabilityDistribution probabilityDistribution)

Method Summary

Modifier and Type	Method	Description
LogProbabilitySeq	compute(O observation, scala.collection.immutable.Seq<MatchResult<V>> candidates)
static double	DefaultDistanceStandardDeviationInMeters()	The standard deviation used by the default probability distribution for DistanceEmissionProbabilityStrategy.
static GaussianProbabilityDistribution	DefaultProbabilityDistribution()	The probability distribution that is used by a DistanceEmissionProbabilityStrategy if you don't pass another.

Methods inherited from class java.lang.Object

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

Constructor Details

DistanceEmissionProbabilityStrategy

public DistanceEmissionProbabilityStrategy(double distanceForUnknown,
 ProbabilityDistribution probabilityDistribution)

Method Details

DefaultDistanceStandardDeviationInMeters

public static double DefaultDistanceStandardDeviationInMeters()

The standard deviation used by the default probability distribution for DistanceEmissionProbabilityStrategy.

DefaultProbabilityDistribution

public static GaussianProbabilityDistribution DefaultProbabilityDistribution()

The probability distribution that is used by a DistanceEmissionProbabilityStrategy if you don't pass another.

This is a GaussianProbabilityDistribution with standard deviation DefaultDistanceStandardDeviationInMeters().

compute

public LogProbabilitySeq compute(O observation,
 scala.collection.immutable.Seq<MatchResult<V>> candidates)

Specified by:

compute in interface com.here.platform.location.core.mapmatching.EmissionProbabilityStrategy<O,V>