be.ac.ulb.mlg.utils.measure.entropy

Class SchurmannGrassbergerEntropy

java.lang.Object

be.ac.ulb.mlg.utils.measure.Entropy

be.ac.ulb.mlg.utils.measure.entropy.DirichletEntropy

be.ac.ulb.mlg.utils.measure.entropy.SchurmannGrassbergerEntropy

All Implemented Interfaces:

Measure

public class SchurmannGrassbergerEntropy
extends DirichletEntropy

Schurmann-Grassberger entropy estimate of Dirichlet probability distribution.

Version:

1.2, 18/08/2015

Author:

Jean-Sébastien Lerat

Field Summary

Fields inherited from class be.ac.ulb.mlg.utils.measure.entropy.DirichletEntropy

EULER_MASCHERONI

Fields inherited from interface be.ac.ulb.mlg.utils.Measure

ERROR_VALUE

Constructor Summary

Constructors

Constructor and Description
SchurmannGrassbergerEntropy()

Method Summary

Modifier and Type	Method and Description
protected double	estimateModel(double[] frequencies, int bins, int samples) Model estimator for a dirichlet probability
boolean	hasNativeImplementation() Know if the measure owns a native implementation

Methods inherited from class be.ac.ulb.mlg.utils.measure.entropy.DirichletEntropy

entropy, requireDataTransformation, transform

Methods inherited from class be.ac.ulb.mlg.utils.measure.Entropy

entropy, jointEntropy, measure

Methods inherited from class java.lang.Object

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

Constructor Detail

SchurmannGrassbergerEntropy

public SchurmannGrassbergerEntropy()

Method Detail

estimateModel

protected double estimateModel(double[] frequencies,
                               int bins,
                               int samples)

Description copied from class: DirichletEntropy

Model estimator for a dirichlet probability

Specified by:

estimateModel in class DirichletEntropy

Parameters:

frequencies - The occurrences array (of values)

bins - The number of bins (number of distinct values)

samples - The number of samples (number of values)

Returns:

The pseudo count

hasNativeImplementation

public boolean hasNativeImplementation()

Description copied from interface: Measure

Know if the measure owns a native implementation

Specified by:

hasNativeImplementation in interface Measure

Overrides:

hasNativeImplementation in class DirichletEntropy

Returns:

True if the measure is also natively implemented