Class CompactGaModel

java.lang.Object

com.knezevic.edaf.v3.models.discrete.CompactGaModel

All Implemented Interfaces:

Model<BitString>

public final class CompactGaModel
extends Object
implements Model<BitString>

Compact Genetic Algorithm (cGA)-style probability-vector model.

The implementation keeps a single Bernoulli vector and moves it by fixed step toward elite empirical frequencies. This preserves the memory-light cGA flavor while keeping integration with the generic EDA model API deterministic and checkpoint-safe.

Update direction (per locus):

   p_i invalid input: '<'- clip(p_i + step * sign(mean_elite(x_i) - p_i))
 

with clipping to [1e-6, 1-1e-6].

Constructor Summary

Constructors

Constructor	Description
CompactGaModel(double step)

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

CompactGaModel

public CompactGaModel(double step)

Parameters:

step - probability move size per fit iteration

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>