Class CopulaBaselineModel

java.lang.Object

com.knezevic.edaf.v3.models.continuous.CopulaBaselineModel

All Implemented Interfaces:

Model<RealVector>

public final class CopulaBaselineModel
extends Object
implements Model<RealVector>

Gaussian copula baseline with empirical marginals.

Workflow:

1. estimate empirical CDF/ranks per dimension from elites
2. map ranks to latent Gaussian scores via inverse normal CDF
3. estimate latent correlation matrix and sample correlated Gaussian vectors
4. map latent samples back to original scale via empirical quantiles

This captures dependence structure separately from marginal shape and is a robust baseline when marginals are non-Gaussian.

Constructor Summary

Constructors

Constructor	Description
CopulaBaselineModel(double jitter)

Method Summary

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

CopulaBaselineModel

public CopulaBaselineModel(double jitter)

Parameters:

jitter - diagonal regularization for correlation/cholesky stability

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<RealVector>

fit

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

Description copied from interface: Model

Fits model parameters from selected individuals.

Specified by:

fit in interface Model<RealVector>

sample

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

Description copied from interface: Model

Samples new genotypes from model.

Specified by:

sample in interface Model<RealVector>

diagnostics

public ModelDiagnostics diagnostics()

Description copied from interface: Model

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

Specified by:

diagnostics in interface Model<RealVector>