Package elki.math.statistics.intrinsicdimensionality

Class ABIDEstimator

java.lang.Object

elki.math.statistics.intrinsicdimensionality.RABIDEstimator

elki.math.statistics.intrinsicdimensionality.ABIDEstimator

All Implemented Interfaces:

DistanceBasedIntrinsicDimensionalityEstimator, IntrinsicDimensionalityEstimator<java.lang.Object>

@Reference(authors="Erik Thordsen and Erich Schubert",
           title="ABID: Angle Based Intrinsic Dimensionality",
           booktitle="Proc. 13th Int. Conf. Similarity Search and Applications (SISAP\'2020)",
           url="https://doi.org/10.1007/978-3-030-60936-8_17",
           bibkey="DBLP:conf/sisap/ThordsenS20")
public class ABIDEstimator
extends RABIDEstimator

Angle based intrinsic dimensionality (ABID) estimator.

Reference:

Erik Thordsen and Erich Schubert
ABID: Angle Based Intrinsic Dimensionality
Proc. 13th Int. Conf. Similarity Search and Applications (SISAP'2020)

Since:

0.8.0

Author:

Erik Thordsen

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	ABIDEstimator.Par	Parameterization class.

Field Summary

Fields

Modifier and Type	Field	Description
static ABIDEstimator	STATIC	Static instance.

Constructor Summary

Constructors

Constructor	Description
ABIDEstimator()

Method Summary

Modifier and Type	Method	Description
double	estimate(KNNSearcher<DBIDRef> knnq, DistanceQuery<?> distq, DBIDRef cur, int k)	Estimate from a Reference Point, a KNNSearcher and the neighborhood size k.

Methods inherited from class elki.math.statistics.intrinsicdimensionality.RABIDEstimator

computeABID, estimate

Methods inherited from class java.lang.Object

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

Methods inherited from interface elki.math.statistics.intrinsicdimensionality.DistanceBasedIntrinsicDimensionalityEstimator

estimate, estimate, estimate, estimate

Field Detail

STATIC

public static final ABIDEstimator STATIC

Static instance.

Constructor Detail

ABIDEstimator

public ABIDEstimator()

Method Detail

estimate

public double estimate(KNNSearcher<DBIDRef> knnq,
                       DistanceQuery<?> distq,
                       DBIDRef cur,
                       int k)

Description copied from interface: IntrinsicDimensionalityEstimator

Estimate from a Reference Point, a KNNSearcher and the neighborhood size k.

Specified by:

estimate in interface DistanceBasedIntrinsicDimensionalityEstimator

Specified by:

estimate in interface IntrinsicDimensionalityEstimator<java.lang.Object>

Overrides:

estimate in class RABIDEstimator

Parameters:

knnq - KNNSearcher

distq - Distance query for additional distances

cur - reference point

k - neighborhood size

Returns:

Estimated intrinsic dimensionality