Class NguyenSymbolicRegressionProblem

java.lang.Object

com.knezevic.edaf.v3.problems.tree.NguyenSymbolicRegressionProblem

All Implemented Interfaces:

Problem<VariableLengthVector<Integer>>

public final class NguyenSymbolicRegressionProblem
extends Object
implements Problem<VariableLengthVector<Integer>>

Nguyen symbolic regression benchmark using tokenized expression trees.

Genotype is interpreted as prefix tokens. This keeps tree-style search runnable with the existing variable-length representation pipeline.

Constructor Summary

Constructors

Constructor	Description
NguyenSymbolicRegressionProblem(int variant, int sampleCount, double minX, double maxX)

Method Summary

Modifier and Type	Method	Description
Fitness	evaluate(VariableLengthVector<Integer> genotype)	Evaluates one genotype and returns its fitness.
String	name()	Problem identifier used for reporting and persistence.
ObjectiveSense	objectiveSense()	Returns whether this problem is min or max.
List<String>	violations(VariableLengthVector<Integer> genotype)	Returns validation/constraint violations for diagnostics.

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.Problem

feasible, objectiveCount

Constructor Details

NguyenSymbolicRegressionProblem

public NguyenSymbolicRegressionProblem(int variant,
 int sampleCount,
 double minX,
 double maxX)

Method Details

name

public String name()

Description copied from interface: Problem

Problem identifier used for reporting and persistence.

Specified by:

name in interface Problem<VariableLengthVector<Integer>>

objectiveSense

public ObjectiveSense objectiveSense()

Description copied from interface: Problem

Returns whether this problem is min or max.

Specified by:

objectiveSense in interface Problem<VariableLengthVector<Integer>>

evaluate

public Fitness evaluate(VariableLengthVector<Integer> genotype)

Description copied from interface: Problem

Evaluates one genotype and returns its fitness.

Specified by:

evaluate in interface Problem<VariableLengthVector<Integer>>

violations

public List<String> violations(VariableLengthVector<Integer> genotype)

Description copied from interface: Problem

Returns validation/constraint violations for diagnostics.

Specified by:

violations in interface Problem<VariableLengthVector<Integer>>