Package repast.simphony.parameter.optimizer

Interface AdvancementChooser

All Known Implementing Classes:

AnnealingAdvancementChooser, HillClimber, OptimizedParameterSweeper.DefaultAdvanceChooser

public interface AdvancementChooser

This interface represents objects that will tell the OptimizedParameterSweeper which way it should traverse the parameter space.

Author:

Jerry Vos

Method Summary

Modifier and Type	Method	Description
AdvanceType	chooseAdvancement(ParameterSetter setter, AdvanceType lastType, double runResult)	Chooses which action the parameter sweeper should apply to the given setter.
boolean	shouldRevert(double runResult)	If the sweeper should revert to the parameters used before the last ones.

Method Details

chooseAdvancement

AdvanceType chooseAdvancement(ParameterSetter setter,
 AdvanceType lastType,
 double runResult)

Chooses which action the parameter sweeper should apply to the given setter.

Parameters:

setter - the setter that will be executed

lastType - the last executed advancement (might not be what this AdvancementChooser last said

runResult - the result of the last run (probably produced by a RunResultProducer

Returns:

which action the parameter sweeper should next apply

shouldRevert

boolean shouldRevert(double runResult)

If the sweeper should revert to the parameters used before the last ones. For instance, if we executed 2 runs, first at (0, 0) and second at (1, 0) and the value of those runs were 100 and 50 respectively, it would most likely tell it to revert and go back to the (0, 0) parameters (because the value was "better").

Parameters:

runResult - the result of the previous run

Returns:

if the sweeper should revert or not