gov.sns.tools.optimization
Class RandomSearchAlgorithm.ComboSearcher

java.lang.Object
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  +--gov.sns.tools.optimization.RandomSearchAlgorithm.RandomSearcher
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        +--gov.sns.tools.optimization.RandomSearchAlgorithm.ComboSearcher

All Implemented Interfaces:

RandomSearchAlgorithm.Searcher, gov.sns.tools.optimization.ScoreMonitor

Enclosing class:

RandomSearchAlgorithm

public class RandomSearchAlgorithm.ComboSearcher

extends RandomSearchAlgorithm.RandomSearcher

Use a combination of search engines to search for the best solution.

Field Summary

protected RandomSearchAlgorithm.RandomSearcher	randomSearcher
protected static double	SHRINK_THRESHOLD
protected RandomSearchAlgorithm.ShrinkSearcher	shrinkSearcher

Fields inherited from class gov.sns.tools.optimization.RandomSearchAlgorithm.RandomSearcher

changeProbabilityBase, randomGenerator, values

Constructor Summary

RandomSearchAlgorithm.ComboSearcher()
Constructor

Method Summary

void	newScore(java.lang.Object sender, Solution solution) Notifies the receiver of a new score event.
void	newTopSolution(TrialPoint oldPoint, TrialPoint newPoint) An event indicating that a new solution has been found which is better than the previous best solution according to the score given by the evaluator.
protected double	proposeValue(Variable variable) Propose a new value for the variable by picking a search engine to propose a new value.
void	reset() reset for searching from scratch; forget history

Methods inherited from class gov.sns.tools.optimization.RandomSearchAlgorithm.RandomSearcher

nextPoint, nextPoint, nextTrialPoint

Methods inherited from class java.lang.Object

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

Field Detail

shrinkSearcher

protected RandomSearchAlgorithm.ShrinkSearcher shrinkSearcher

randomSearcher

protected RandomSearchAlgorithm.RandomSearcher randomSearcher

SHRINK_THRESHOLD

protected static final double SHRINK_THRESHOLD

See Also:

Constant Field Values

Constructor Detail

RandomSearchAlgorithm.ComboSearcher

public RandomSearchAlgorithm.ComboSearcher()

Constructor

Method Detail

reset

public void reset()

reset for searching from scratch; forget history

Specified by:

reset in interface RandomSearchAlgorithm.Searcher

Overrides:

reset in class RandomSearchAlgorithm.RandomSearcher

newTopSolution

public void newTopSolution(TrialPoint oldPoint,
                           TrialPoint newPoint)

An event indicating that a new solution has been found which is better than the previous best solution according to the score given by the evaluator.

Specified by:

newTopSolution in interface RandomSearchAlgorithm.Searcher

Overrides:

newTopSolution in class RandomSearchAlgorithm.RandomSearcher

Parameters:

oldPoint - The old best point.

newPoint - The new best point.

proposeValue

protected double proposeValue(Variable variable)

Propose a new value for the variable by picking a search engine to propose a new value.

Overrides:

proposeValue in class RandomSearchAlgorithm.RandomSearcher

Parameters:

variable - the variable for which to propose a new value

Returns:

the new value to propose for the variable

newScore

public void newScore(java.lang.Object sender,
                     Solution solution)

Notifies the receiver of a new score event.

Specified by:

newScore in interface gov.sns.tools.optimization.ScoreMonitor

Overrides:

newScore in class RandomSearchAlgorithm.RandomSearcher

Parameters:

sender - The object posting the event.

solution - The solution posted.