Class MimicChowLiuModel

java.lang.Object

com.knezevic.edaf.v3.models.discrete.MimicChowLiuModel

All Implemented Interfaces:

Model<BitString>

public final class MimicChowLiuModel
extends Object
implements Model<BitString>

MIMIC-style model using a Chow-Liu maximum-weight dependency tree.

The model approximates the elite distribution with the best tree-structured factorization under pairwise mutual information. In this implementation, the root is chosen as the minimum-entropy variable to stabilize chain/tree sampling on highly decisive loci.

Constructor Summary

Constructors

Constructor	Description
MimicChowLiuModel(double smoothing)

Method Summary

Modifier and Type	Method	Description
ModelDiagnostics	diagnostics()	Exposes diagnostics (entropy, covariance condition number, etc.).
void	fit(List<Individual<BitString>> selected, Representation<BitString> representation, RngStream rng)	Fits model parameters from selected individuals.
String	name()	Model identifier used in configuration and listing commands.
List<BitString>	sample(int count, Representation<BitString> representation, Problem<BitString> problem, ConstraintHandling<BitString> constraintHandling, RngStream rng)	Samples new genotypes from model.

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.knezevic.edaf.v3.core.api.Model

update

Constructor Details

MimicChowLiuModel

public MimicChowLiuModel(double smoothing)

Parameters:

smoothing - Laplace smoothing for marginal and conditional estimates

Method Details

name

public String name()

Description copied from interface: Model

Model identifier used in configuration and listing commands.

Specified by:

name in interface Model<BitString>

fit

public void fit(List<Individual<BitString>> selected,
 Representation<BitString> representation,
 RngStream rng)

Description copied from interface: Model

Fits model parameters from selected individuals.

Specified by:

fit in interface Model<BitString>

sample

public List<BitString> sample(int count,
 Representation<BitString> representation,
 Problem<BitString> problem,
 ConstraintHandling<BitString> constraintHandling,
 RngStream rng)

Description copied from interface: Model

Samples new genotypes from model.

Specified by:

sample in interface Model<BitString>

diagnostics

public ModelDiagnostics diagnostics()

Description copied from interface: Model

Exposes diagnostics (entropy, covariance condition number, etc.).

Specified by:

diagnostics in interface Model<BitString>