net.sourceforge.cilib.pso.dynamic.responsestrategies
Class ReinitializationReactionStrategy<E extends PopulationBasedAlgorithm>

java.lang.Object
  net.sourceforge.cilib.pso.dynamic.responsestrategies.EnvironmentChangeResponseStrategy<E>
      net.sourceforge.cilib.pso.dynamic.responsestrategies.ReinitializationReactionStrategy<E>

Type Parameters:

E - some population based algorithm

All Implemented Interfaces:

Serializable, Cloneable

public class ReinitializationReactionStrategy<E extends PopulationBasedAlgorithm>
extends EnvironmentChangeResponseStrategy<E>

This reaction strategy reinitializes the specified ratio of randomly chosen entities in the given Topology.

Author:

Theuns Cloete

See Also:

Serialized Form

Field Summary

protected Random	randomGenerator
protected double	reinitializationRatio

Fields inherited from class net.sourceforge.cilib.pso.dynamic.responsestrategies.EnvironmentChangeResponseStrategy

hasMemory

Constructor Summary

ReinitializationReactionStrategy()

ReinitializationReactionStrategy(ReinitializationReactionStrategy<E> rhs)

Method Summary

ReinitializationReactionStrategy<E>	getClone() Clone the EnvironmentChangeResponseStrategy object.
protected Random	getRandomGenerator() Retrieve the random number generator being used.
double	getReinitializationRatio() Get the ratio of entities that should be reinitialized.
void	performReaction(E algorithm) Reinitialize the entities inside the topology.
protected void	reinitialize(List<? extends Entity> entities, int reinitializeCount) Reinitialize a specified number of the given entities.
protected void	setRandomGenerator(Random r) Set the random number generator to use.
void	setReinitializationRatio(double rr) Set the ratio of entities that should be reinitialized.

Methods inherited from class net.sourceforge.cilib.pso.dynamic.responsestrategies.EnvironmentChangeResponseStrategy

getHasMemory, respond, setHasMemory, updateNeighbourhoodBestEntities

Methods inherited from class java.lang.Object

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

Field Detail

reinitializationRatio

protected double reinitializationRatio

randomGenerator

protected Random randomGenerator

Constructor Detail

ReinitializationReactionStrategy

public ReinitializationReactionStrategy()

ReinitializationReactionStrategy

public ReinitializationReactionStrategy(ReinitializationReactionStrategy<E> rhs)

Method Detail

getClone

public ReinitializationReactionStrategy<E> getClone()

Description copied from class: EnvironmentChangeResponseStrategy

Clone the EnvironmentChangeResponseStrategy object.

Specified by:

getClone in interface Cloneable

Specified by:

getClone in class EnvironmentChangeResponseStrategy<E extends PopulationBasedAlgorithm>

Returns:

A cloned EnvironmentChangeResponseStrategy

See Also:

Object.clone()

performReaction

public void performReaction(E algorithm)

Reinitialize the entities inside the topology. This is the method responsible for responding that should be overridden by sub-classes.

Specified by:

performReaction in class EnvironmentChangeResponseStrategy<E extends PopulationBasedAlgorithm>

reinitialize

protected void reinitialize(List<? extends Entity> entities,
                            int reinitializeCount)

Reinitialize a specified number of the given entities.

Parameters:

entities - a List of entities that should be considered for reinitialization

reinitializeCount - anint specifying how many entities should be reinitialized

setReinitializationRatio

public void setReinitializationRatio(double rr)

Set the ratio of entities that should be reinitialized.

Parameters:

rr - a double value in the range (0.0, 1.0)

Throws:

{@link - IllegalArgumentException} when the ratio is not within the above mentioned range

getReinitializationRatio

public double getReinitializationRatio()

Get the ratio of entities that should be reinitialized.

Returns:

the ratio of entities that should be reinitialized

setRandomGenerator

protected void setRandomGenerator(Random r)

Set the random number generator to use.

Parameters:

r - a Random object

getRandomGenerator

protected Random getRandomGenerator()

Retrieve the random number generator being used.

Returns:

the Random object being used to generate a random sequence of numbers