Package dynheurset.update

Class PhaseDominanceUpdate

java.lang.Object

dynheurset.update.Update

dynheurset.update.PhaseDominanceUpdate

Direct Known Subclasses:

PatientPhaseDominanceUpdate

public class PhaseDominanceUpdate
extends Update

This class implements a phase-based dominance update strategy.

The active set is updated every phaseLen iterations. All dominant heuristics are included in the active set. A heuristic j is dominated by a heuristic i if i achieves better performance and in a shorter amount of computational time than j

Field Summary

Fields

Modifier and Type	Field	Description
protected int	phaseLen	The phase length which is the maximum number of iterations that can elapse before updating the active set

Fields inherited from class dynheurset.update.Update

activeList, heurList, measure, numRemove, numReset, numUpdates, remove, reset, runStat

Constructor Summary

Constructors

Constructor	Description
PhaseDominanceUpdate(int phaseLen)

Method Summary

Modifier and Type	Method	Description
boolean	canUpdate()	Returns true if the active set is to be updated and false otherwise.
protected void	performUpdate()	Determines which heuristics to include in the active set.

Methods inherited from class dynheurset.update.Update

getActiveList, setHeurList, setMeasure, setRemove, setReset, setRunStat, updateActiveList

Methods inherited from class java.lang.Object

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

Field Details

phaseLen

protected final int phaseLen

The phase length which is the maximum number of iterations that can elapse before updating the active set

Constructor Details

PhaseDominanceUpdate

public PhaseDominanceUpdate(int phaseLen)

Method Details

canUpdate

public boolean canUpdate()

Description copied from class: Update

Returns true if the active set is to be updated and false otherwise.

In this method, you should use the RunStat field to access the run information that you may need to decides whether to update the active set.

Specified by:

canUpdate in class Update

Returns:

true if the active set is to be updated and false otherwise.

performUpdate

protected void performUpdate()

Description copied from class: Update

Determines which heuristics to include in the active set.

This method should contain your logic for updating the active set. You can access the runStat and measure fields in your implementation to get the search-status information and measure the performance of heuristics. regarding the search

Specified by:

performUpdate in class Update