Package ai.libs.jaicore.search.algorithms.standard.lds

Class BestFirstLimitedDiscrepancySearch<I extends GraphSearchWithNodeRecommenderInput<T,A>,T,A,V extends java.lang.Comparable<V>>

java.lang.Object

ai.libs.jaicore.basic.algorithm.AAlgorithm<I,O>

ai.libs.jaicore.basic.algorithm.ASolutionCandidateIterator<I,O>

ai.libs.jaicore.basic.algorithm.AOptimizer<I,EvaluatedSearchGraphPath<N,A,V>,V>

ai.libs.jaicore.search.core.interfaces.AOptimalPathInORGraphSearch<I,T,A,V>

ai.libs.jaicore.search.algorithms.standard.lds.BestFirstLimitedDiscrepancySearch<I,T,A,V>

Type Parameters:

T -

A -

V -

All Implemented Interfaces:

java.lang.Iterable<org.api4.java.algorithm.events.IAlgorithmEvent>, java.util.concurrent.Callable<EvaluatedSearchGraphPath<T,A,V>>, java.util.Iterator<org.api4.java.algorithm.events.IAlgorithmEvent>, org.api4.java.ai.graphsearch.problem.IOptimalPathInORGraphSearch<I,EvaluatedSearchGraphPath<T,A,V>,T,A,V>, org.api4.java.ai.graphsearch.problem.IPathInORGraphSearch<I,EvaluatedSearchGraphPath<T,A,V>,T,A>, org.api4.java.ai.graphsearch.problem.IPathSearch<I,EvaluatedSearchGraphPath<T,A,V>,T,A>, org.api4.java.algorithm.IAlgorithm<I,EvaluatedSearchGraphPath<T,A,V>>, org.api4.java.algorithm.IOptimizationAlgorithm<I,EvaluatedSearchGraphPath<T,A,V>,V>, org.api4.java.algorithm.ISolutionCandidateIterator<I,EvaluatedSearchGraphPath<T,A,V>>, org.api4.java.common.control.ICancelable, org.api4.java.common.control.ILoggingCustomizable

public class BestFirstLimitedDiscrepancySearch<I extends GraphSearchWithNodeRecommenderInput<T,A>,T,A,V extends java.lang.Comparable<V>>
extends AOptimalPathInORGraphSearch<I,T,A,V>

This class conducts a limited discrepancy search by running a best first algorithm with list-based node evaluations. Since the f-values are lists too, we do not simply extend BestFirst but rather forward all commands to it.

Constructor Summary

Constructors

Constructor	Description
BestFirstLimitedDiscrepancySearch(I problem)

Method Summary

Modifier and Type	Method	Description
void	cancel()
java.lang.String	getLoggerName()
org.api4.java.algorithm.events.IAlgorithmEvent	nextWithException()
void	registerListener(java.lang.Object listener)
void	setLoggerName(java.lang.String name)
void	setNumCPUs(int numberOfCPUs)

Methods inherited from class ai.libs.jaicore.search.core.interfaces.AOptimalPathInORGraphSearch

getGoalTester, getGraphGenerator, nextSolutionCandidateEvent, registerSolution

Methods inherited from class ai.libs.jaicore.basic.algorithm.AOptimizer

call, getBestScoreKnownToExist, getBestSeenSolution, nextSolutionCandidate, setBestSeenSolution, tellAboutBestScoreKnownToExist, updateBestSeenSolution

Methods inherited from class ai.libs.jaicore.basic.algorithm.ASolutionCandidateIterator

collectAllSolutions

Methods inherited from class ai.libs.jaicore.basic.algorithm.AAlgorithm

activate, announceTimeoutDetected, avoidReinterruptionOnShutdownOnCurrentThread, checkAndConductTermination, checkTermination, computeTimeoutAware, getActivationTime, getConfig, getId, getInput, getListeners, getNumCPUs, getRemainingTimeToDeadline, getState, getTimeout, getTimeoutPrecautionOffset, hasNext, hasThreadBeenInterruptedDuringShutdown, interruptThreadAsPartOfShutdown, isCanceled, isShutdownInitialized, isStopCriterionSatisfied, isTimeouted, iterator, next, post, registerActiveThread, resolveShutdownInterruptOnCurrentThread, setConfig, setDeadline, setMaxNumThreads, setState, setTimeout, setTimeout, setTimeoutPrecautionOffset, shutdown, terminate, unregisterActiveThread, unregisterThreadAndShutdown

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.api4.java.algorithm.IAlgorithm

call, getConfig, getId, getInput, getNumCPUs, getTimeout, setMaxNumThreads, setTimeout, setTimeout

Methods inherited from interface org.api4.java.algorithm.ISolutionCandidateIterator

nextSolutionCandidate

Methods inherited from interface java.lang.Iterable

forEach, iterator, spliterator

Methods inherited from interface java.util.Iterator

forEachRemaining, hasNext, next, remove

Constructor Detail

BestFirstLimitedDiscrepancySearch

public BestFirstLimitedDiscrepancySearch(I problem)

Method Detail

cancel

public void cancel()

Specified by:

cancel in interface org.api4.java.common.control.ICancelable

Overrides:

cancel in class ai.libs.jaicore.basic.algorithm.AAlgorithm<I extends GraphSearchWithNodeRecommenderInput<T,A>,EvaluatedSearchGraphPath<T,A,V extends java.lang.Comparable<V>>>

registerListener

public void registerListener(java.lang.Object listener)

Specified by:

registerListener in interface org.api4.java.algorithm.IAlgorithm<I extends GraphSearchWithNodeRecommenderInput<T,A>,T>

Overrides:

registerListener in class ai.libs.jaicore.basic.algorithm.AAlgorithm<I extends GraphSearchWithNodeRecommenderInput<T,A>,EvaluatedSearchGraphPath<T,A,V extends java.lang.Comparable<V>>>

setNumCPUs

public void setNumCPUs(int numberOfCPUs)

Specified by:

setNumCPUs in interface org.api4.java.algorithm.IAlgorithm<I extends GraphSearchWithNodeRecommenderInput<T,A>,T>

Overrides:

setNumCPUs in class ai.libs.jaicore.basic.algorithm.AAlgorithm<I extends GraphSearchWithNodeRecommenderInput<T,A>,EvaluatedSearchGraphPath<T,A,V extends java.lang.Comparable<V>>>

nextWithException

public org.api4.java.algorithm.events.IAlgorithmEvent nextWithException()
                                                                 throws java.lang.InterruptedException,
                                                                        org.api4.java.algorithm.exceptions.AlgorithmExecutionCanceledException,
                                                                        org.api4.java.algorithm.exceptions.AlgorithmTimeoutedException,
                                                                        org.api4.java.algorithm.exceptions.AlgorithmException

Throws:

java.lang.InterruptedException

org.api4.java.algorithm.exceptions.AlgorithmExecutionCanceledException

org.api4.java.algorithm.exceptions.AlgorithmTimeoutedException

org.api4.java.algorithm.exceptions.AlgorithmException

getLoggerName

public java.lang.String getLoggerName()

Specified by:

getLoggerName in interface org.api4.java.common.control.ILoggingCustomizable

Overrides:

getLoggerName in class AOptimalPathInORGraphSearch<I extends GraphSearchWithNodeRecommenderInput<T,A>,T,A,V extends java.lang.Comparable<V>>

setLoggerName

public void setLoggerName(java.lang.String name)

Specified by:

setLoggerName in interface org.api4.java.common.control.ILoggingCustomizable

Overrides:

setLoggerName in class AOptimalPathInORGraphSearch<I extends GraphSearchWithNodeRecommenderInput<T,A>,T,A,V extends java.lang.Comparable<V>>