Class AbstractGrammarBitStringProblem

java.lang.Object

com.knezevic.edaf.v3.problems.grammar.AbstractGrammarBitStringProblem

All Implemented Interfaces:

Problem<BitString>

Direct Known Subclasses:

GrammarCsvClassificationProblem, GrammarCsvRegressionProblem, GrammarMajorityProblem, GrammarNguyenRegressionProblem, GrammarXorProblem

public abstract class AbstractGrammarBitStringProblem
extends Object
implements Problem<BitString>

Shared base for grammar-encoded symbolic optimization problems.

Field Summary

Fields

Modifier and Type	Field	Description
protected final double	complexityPenalty
protected final GrammarTreeEngine	treeEngine

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AbstractGrammarBitStringProblem(Map<String,Object> params, double complexityPenalty)

Method Summary

Modifier and Type	Method	Description
protected double	complexityTerm(GrammarTreeEngine.TreeInspection inspection)	Complexity term used by all grammar tasks.
protected GrammarTreeEngine.TreeInspection	inspect(BitString genotype)	Returns tree inspection for one genotype.
ObjectiveSense	objectiveSense()	Returns whether this problem is min or max.
List<String>	violations(BitString 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

evaluate, feasible, name, objectiveCount

Field Details

treeEngine

protected final GrammarTreeEngine treeEngine

complexityPenalty

protected final double complexityPenalty

Constructor Details

AbstractGrammarBitStringProblem

protected AbstractGrammarBitStringProblem(Map<String,Object> params,
 double complexityPenalty)

Method Details

objectiveSense

public ObjectiveSense objectiveSense()

Description copied from interface: Problem

Returns whether this problem is min or max.

Specified by:

objectiveSense in interface Problem<BitString>

violations

public List<String> violations(BitString genotype)

Description copied from interface: Problem

Returns validation/constraint violations for diagnostics.

Specified by:

violations in interface Problem<BitString>

inspect

protected GrammarTreeEngine.TreeInspection inspect(BitString genotype)

Returns tree inspection for one genotype.

complexityTerm

protected double complexityTerm(GrammarTreeEngine.TreeInspection inspection)

Complexity term used by all grammar tasks.