org.opt4j.core.common.archive

Class CrowdingArchive

java.lang.Object

org.opt4j.core.IndividualSet

org.opt4j.core.optimizer.Archive

org.opt4j.core.common.archive.AbstractArchive

org.opt4j.core.common.archive.BoundedArchive

org.opt4j.core.common.archive.CrowdingArchive

All Implemented Interfaces:

java.lang.Iterable<Individual>, java.util.Collection<Individual>, java.util.Set<Individual>

Direct Known Subclasses:

DefaultArchive

public class CrowdingArchive
extends BoundedArchive

The CrowdingArchive is based on the Crowding distance.

See Also:

Crowding

Field Summary

Fields inherited from class org.opt4j.core.common.archive.BoundedArchive

capacity

Fields inherited from class org.opt4j.core.IndividualSet

individuals, listeners

Constructor Summary

Constructors

Constructor and Description
CrowdingArchive(int capacity) Constructs a CrowdingArchive.

Method Summary

Modifier and Type	Method and Description
protected boolean	updateWithNondominated(java.util.Collection<Individual> candidates) Adds new candidates which are already checked to be not Pareto-dominated by any other individual in this Archive.

Methods inherited from class org.opt4j.core.common.archive.BoundedArchive

addCheckedIndividual, addCheckedIndividuals, getCapacity, setCapacity

Methods inherited from class org.opt4j.core.common.archive.AbstractArchive

update

Methods inherited from class org.opt4j.core.optimizer.Archive

update

Methods inherited from class org.opt4j.core.IndividualSet

add, addAll, addAll, addListener, clear, contains, containsAll, isEmpty, iterator, remove, removeAll, removeListener, retainAll, size, toArray, toArray

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Set

equals, hashCode, spliterator

Methods inherited from interface java.util.Collection

parallelStream, removeIf, stream

Methods inherited from interface java.lang.Iterable

forEach

Constructor Detail

CrowdingArchive

@Inject
public CrowdingArchive(int capacity)

Constructs a CrowdingArchive.

Parameters:

capacity - capacity of this archive (using namespace BoundedArchive)

Method Detail

updateWithNondominated

protected boolean updateWithNondominated(java.util.Collection<Individual> candidates)

Description copied from class: AbstractArchive

Adds new candidates which are already checked to be not Pareto-dominated by any other individual in this Archive. All Individuals in the Archive which were dominated by the candidates have already been removed.

Specified by:

updateWithNondominated in class AbstractArchive

Parameters:

candidates - the non-dominated individuals which can be added

Returns:

true if one or more candidates are added to the archive