de.lmu.ifi.dbs.elki.math.statistics.intrinsicdimensionality

Class LMomentsEstimator

java.lang.Object

de.lmu.ifi.dbs.elki.math.statistics.intrinsicdimensionality.LMomentsEstimator

All Implemented Interfaces:

IntrinsicDimensionalityEstimator

@Reference(authors="L. Amsaleg, O. Chelly, T. Furon, S. Girard, M. E. Houle, K. Kawarabayashi, M. Nett",title="Estimating Local Intrinsic Dimensionality",booktitle="Proc. SIGKDD International Conference on Knowledge Discovery and Data Mining 2015",url="https://doi.org/10.1145/2783258.2783405",bibkey="DBLP:conf/kdd/AmsalegCFGHKN15") @Reference(authors="J. R. M. Hosking",title="Fortran routines for use with the method of L-moments Version 3.03",booktitle="IBM Research Technical Report",bibkey="tr/ibm/Hosking00")
public class LMomentsEstimator
extends java.lang.Object
implements IntrinsicDimensionalityEstimator

Probability weighted moments based estimator using L-Moments.

This is dervied from the PWM estimators of Amsaleg et al. using the L-Moments estimation for the exponential distribution.

Reference:

L. Amsaleg, O. Chelly, T. Furon, S. Girard, M. E. Houle, K. Kawarabayashi, M. Nett
Estimating Local Intrinsic Dimensionality
Proc. SIGKDD Int. Conf. on Knowledge Discovery and Data Mining

J. R. M. Hosking
Fortran routines for use with the method of L-moments Version 3.03
IBM Research.

Since:

0.7.0

Author:

Jonathan von Brünken, Erich Schubert

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	LMomentsEstimator.Parameterizer Parameterization class.
private static class	LMomentsEstimator.ReverseAdapter<A> Adapter to process an array in reverse order.

Field Summary

Fields

Modifier and Type	Field and Description
static LMomentsEstimator	STATIC Static instance.

Constructor Summary

Constructors

Constructor and Description
LMomentsEstimator()

Method Summary

Modifier and Type	Method and Description
<A> double	estimate(A data, NumberArrayAdapter<?,? super A> adapter, int end) Estimate from a distance list.

Methods inherited from class java.lang.Object

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

Methods inherited from interface de.lmu.ifi.dbs.elki.math.statistics.intrinsicdimensionality.IntrinsicDimensionalityEstimator

countLeadingZeros, estimate, estimate, estimate, estimate, estimate

Field Detail

STATIC

public static final LMomentsEstimator STATIC

Static instance.

Constructor Detail

LMomentsEstimator

public LMomentsEstimator()

Method Detail

estimate

public <A> double estimate(A data,
                           NumberArrayAdapter<?,? super A> adapter,
                           int end)

Description copied from interface: IntrinsicDimensionalityEstimator

Estimate from a distance list.

Specified by:

estimate in interface IntrinsicDimensionalityEstimator

Type Parameters:

A - array type

Parameters:

data - Data

adapter - Array adapter

end - Length

Returns:

Estimated intrinsic dimensionality