Package isula.aco.algorithms.antsystem

Class OfflinePheromoneUpdate<C,E extends Environment>

java.lang.Object

isula.aco.DaemonAction<C,E>

isula.aco.algorithms.antsystem.OfflinePheromoneUpdate<C,E>

Type Parameters:

C - Class for components of a solution.

E - Class representing the Environment.

public class OfflinePheromoneUpdate<C,E extends Environment>
extends DaemonAction<C,E>

Update pheromone process triggered after every ant has build a feasible solution. This action only considers the increment caused by pheromone deposit.

Author:

Carlos G. Gavidia

Constructor Summary

Constructors

Constructor	Description
OfflinePheromoneUpdate()

Method Summary

Modifier and Type	Method	Description
void	applyDaemonAction(ConfigurationProvider configurationProvider)
protected double	getPheromoneDeposit(Ant<C,E> ant, Integer positionInSolution, C solutionComponent, E environment, ConfigurationProvider configurationProvider)	Calculates the pheromone value to be used in the pheromone matrix update.
String	toString()

Methods inherited from class isula.aco.DaemonAction

getAcoPhase, getAntColony, getEnvironment, getProblemSolver, setAntColony, setEnvironment, setProblemSolver

Methods inherited from class java.lang.Object

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

Constructor Details

OfflinePheromoneUpdate

public OfflinePheromoneUpdate()

Method Details

applyDaemonAction

public void applyDaemonAction(ConfigurationProvider configurationProvider)

Specified by:

applyDaemonAction in class DaemonAction<C,E extends Environment>

getPheromoneDeposit

protected double getPheromoneDeposit(Ant<C,E> ant,
 Integer positionInSolution,
 C solutionComponent,
 E environment,
 ConfigurationProvider configurationProvider)

Calculates the pheromone value to be used in the pheromone matrix update.

Parameters:

ant - Ant instance doing the update.

positionInSolution - Position of the component in the solution.

solutionComponent - Solution component.

environment - Environment with problem specific information.

configurationProvider - Algorithm configuration.

Returns:

New pheromone value.

toString

public String toString()

Overrides:

toString in class Object