ai.libs.jaicore.search.algorithms.standard.awastar

Class AwaStarSearch<I extends GraphSearchWithSubpathEvaluationsInput<T,A,V>,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.awastar.AwaStarSearch<I,T,A,V>

Type Parameters:

T -

A -

V -

All Implemented Interfaces:

ai.libs.jaicore.basic.algorithm.IAlgorithm<I,EvaluatedSearchGraphPath<T,A,V>>, ai.libs.jaicore.basic.algorithm.IOptimizationAlgorithm<I,EvaluatedSearchGraphPath<T,A,V>,V>, ai.libs.jaicore.basic.algorithm.ISolutionCandidateIterator<I,EvaluatedSearchGraphPath<T,A,V>>, ai.libs.jaicore.basic.Cancelable, ai.libs.jaicore.basic.ILoggingCustomizable, IGraphSearch<I,EvaluatedSearchGraphPath<T,A,V>,T,A>, IOptimalPathInORGraphSearch<I,T,A,V>, IPathInORGraphSearch<I,EvaluatedSearchGraphPath<T,A,V>,T,A>, java.lang.Iterable<ai.libs.jaicore.basic.algorithm.events.AlgorithmEvent>, java.util.concurrent.Callable<EvaluatedSearchGraphPath<T,A,V>>, java.util.Iterator<ai.libs.jaicore.basic.algorithm.events.AlgorithmEvent>

public class AwaStarSearch<I extends GraphSearchWithSubpathEvaluationsInput<T,A,V>,T,A,V extends java.lang.Comparable<V>>
extends AOptimalPathInORGraphSearch<I,T,A,V>

This is a modified version of the AWA* algorithm for problems without admissible heuristic. Important differences are: - no early termination if a best-f-valued solution is found as f is not optimistic

Constructor Summary

Constructors

Constructor and Description
AwaStarSearch(I problem)

Method Summary

Modifier and Type	Method and Description
GraphGenerator<T,A>	getGraphGenerator()
java.lang.String	getLoggerName()
int	getNumCPUs()
ai.libs.jaicore.basic.algorithm.events.AlgorithmEvent	nextWithException()
void	receiveSolutionEvent(EvaluatedSearchSolutionCandidateFoundEvent<T,A,V> solutionEvent)
EvaluatedSearchSolutionCandidateFoundEvent<T,A,V>	registerNewSolutionCandidate(EvaluatedSearchGraphPath<T,A,V> solution)
void	setLoggerName(java.lang.String name)
void	setNumCPUs(int numberOfCPUs)
protected void	shutdown()

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

nextSolutionCandidateEvent, registerSolution

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

call, getBestSeenSolution, nextSolutionCandidate, setBestSeenSolution, 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, cancel, checkAndConductTermination, checkTermination, computeTimeoutAware, getActivationTime, getConfig, getId, getInput, getRemainingTimeToDeadline, getState, getTimeout, getTimeoutPrecautionOffset, hasNext, hasThreadBeenInterruptedDuringShutdown, interruptThreadAsPartOfShutdown, isCanceled, isShutdownInitialized, isStopCriterionSatisfied, isTimeouted, iterator, next, post, registerActiveThread, registerListener, resolveShutdownInterruptOnCurrentThread, setConfig, setMaxNumThreads, setState, setTimeout, setTimeout, setTimeoutPrecautionOffset, 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 ai.libs.jaicore.basic.algorithm.ISolutionCandidateIterator

nextSolutionCandidate

Methods inherited from interface ai.libs.jaicore.basic.algorithm.IAlgorithm

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

Methods inherited from interface java.lang.Iterable

forEach, iterator, spliterator

Methods inherited from interface java.util.Iterator

forEachRemaining, hasNext, next, remove

Methods inherited from interface ai.libs.jaicore.basic.Cancelable

cancel

Constructor Detail

AwaStarSearch

public AwaStarSearch(I problem)

Method Detail

receiveSolutionEvent

public void receiveSolutionEvent(EvaluatedSearchSolutionCandidateFoundEvent<T,A,V> solutionEvent)

registerNewSolutionCandidate

public EvaluatedSearchSolutionCandidateFoundEvent<T,A,V> registerNewSolutionCandidate(EvaluatedSearchGraphPath<T,A,V> solution)

nextWithException

public ai.libs.jaicore.basic.algorithm.events.AlgorithmEvent nextWithException()
                                                                        throws java.lang.InterruptedException,
                                                                               ai.libs.jaicore.basic.algorithm.AlgorithmExecutionCanceledException,
                                                                               ai.libs.jaicore.basic.algorithm.exceptions.AlgorithmTimeoutedException,
                                                                               ai.libs.jaicore.basic.algorithm.exceptions.AlgorithmException

Throws:

java.lang.InterruptedException

ai.libs.jaicore.basic.algorithm.AlgorithmExecutionCanceledException

ai.libs.jaicore.basic.algorithm.exceptions.AlgorithmTimeoutedException

ai.libs.jaicore.basic.algorithm.exceptions.AlgorithmException

shutdown

protected void shutdown()

Overrides:

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

setNumCPUs

public void setNumCPUs(int numberOfCPUs)

Specified by:

setNumCPUs in interface ai.libs.jaicore.basic.algorithm.IAlgorithm<I extends GraphSearchWithSubpathEvaluationsInput<T,A,V>,EvaluatedSearchGraphPath<T,A,V extends java.lang.Comparable<V>>>

Overrides:

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

getNumCPUs

public int getNumCPUs()

Specified by:

getNumCPUs in interface ai.libs.jaicore.basic.algorithm.IAlgorithm<I extends GraphSearchWithSubpathEvaluationsInput<T,A,V>,EvaluatedSearchGraphPath<T,A,V extends java.lang.Comparable<V>>>

Overrides:

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

getGraphGenerator

public GraphGenerator<T,A> getGraphGenerator()

Specified by:

getGraphGenerator in interface IGraphSearch<I extends GraphSearchWithSubpathEvaluationsInput<T,A,V>,EvaluatedSearchGraphPath<T,A,V extends java.lang.Comparable<V>>,T,A>

Overrides:

getGraphGenerator in class AOptimalPathInORGraphSearch<I extends GraphSearchWithSubpathEvaluationsInput<T,A,V>,T,A,V extends java.lang.Comparable<V>>

setLoggerName

public void setLoggerName(java.lang.String name)

Specified by:

setLoggerName in interface ai.libs.jaicore.basic.ILoggingCustomizable

Overrides:

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

getLoggerName

public java.lang.String getLoggerName()

Specified by:

getLoggerName in interface ai.libs.jaicore.basic.ILoggingCustomizable

Overrides:

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