schedulers

Class NetworkSA

java.lang.Object

schedulers.NetworkSA

All Implemented Interfaces:

java.lang.Runnable

public class NetworkSA
extends java.lang.Object
implements java.lang.Runnable

NetworkSA represents a single re-ranking in Netter. It implements the Runnable interface to be spawned as a new Thread. NetworkSA does the optimization using Simulated Annealing/

Since:

0.0

Version:

1.0

Author:

Joeri Ruyssinck (joeri.ruysssinck@intec.ugent.be)

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	NetworkSA.LastAction Possible outcomes of the last mutation

Constructor Summary

Constructors

Constructor and Description

NetworkSA(double T0, double coolingMultiplier, double freezingTemperature, NetworkModifier modifier, PartitionFitnessFunction fitness, boolean allowWorseSolutions, long maxIterations, java.util.ArrayList<ManualLogger> loggers, NetworkFileBackedWrapper wrapper, EnsembleSA ensemble) Constructs a new optimization procedure with following temperature settings, network, modifier, logger and fitnessfunction

Method Summary

Modifier and Type	Method and Description
void	approved() Indicates the ensemble procedure accepted a chance in the temperature parameters and is now asking for feedback
void	clear() Completely clears all the resources registered by the procedure.
double	getCoolingMultiplier()
EnsembleSA	getEnsemble()
PartitionFitnessFunction	getFitness()
double	getFreezingTemperature()
long	getIterationsSoFar()
NetworkSA.LastAction	getLastAction()
double	getLastChance()
long	getMaxIterations()
NetworkModifier	getModifier()
Network	getNetwork()
double	getT0()
NetworkFileBackedWrapper	getWrapper()
boolean	isRestarting()
void	run() Runs the optimization procedure.
void	setCoolingMultiplier(double coolingMultiplier)
void	setEnsemble(EnsembleSA ensemble)
void	setFitness(PartitionFitnessFunction fitness)
void	setFreezingTemperature(double freezingTemperature)
void	setMaxIterations(long maxIterations)
void	setModifier(NetworkModifier modifier)
void	setNetwork(Network network)
void	setRestarting(boolean restarting)
void	setT0(double t0)
void	setWrapper(NetworkFileBackedWrapper wrapper)

Methods inherited from class java.lang.Object

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

Constructor Detail

NetworkSA

public NetworkSA(double T0,
                 double coolingMultiplier,
                 double freezingTemperature,
                 NetworkModifier modifier,
                 PartitionFitnessFunction fitness,
                 boolean allowWorseSolutions,
                 long maxIterations,
                 java.util.ArrayList<ManualLogger> loggers,
                 NetworkFileBackedWrapper wrapper,
                 EnsembleSA ensemble)

Constructs a new optimization procedure with following temperature settings, network, modifier, logger and fitnessfunction

Parameters:

T0 - start temperature

coolingMultiplier - cooldown factor of temperature scheme

freezingTemperature - end temperature

modifier - modifies the network

fitness - current fitness of the ranking

allowWorseSolutions - boolean if worse solutions can be allowed

maxIterations - maximum amount of iterations (chances to the network)

loggers - registered loggers following this optimization

wrapper - network/ranking

ensemble - responsible ensemble which spawned this optimization

Method Detail

run

public void run()

Runs the optimization procedure. Will constantly try to get to the next state of the network. Signals the ensemble asynchronously if it crashed, finished or restarted.

Specified by:

run in interface java.lang.Runnable

approved

public void approved()

Indicates the ensemble procedure accepted a chance in the temperature parameters and is now asking for feedback

clear

public void clear()

Completely clears all the resources registered by the procedure.

isRestarting

public boolean isRestarting()

setRestarting

public void setRestarting(boolean restarting)

getIterationsSoFar

public long getIterationsSoFar()

getNetwork

public Network getNetwork()

setNetwork

public void setNetwork(Network network)

getT0

public double getT0()

setT0

public void setT0(double t0)

getCoolingMultiplier

public double getCoolingMultiplier()

setCoolingMultiplier

public void setCoolingMultiplier(double coolingMultiplier)

getFreezingTemperature

public double getFreezingTemperature()

setFreezingTemperature

public void setFreezingTemperature(double freezingTemperature)

getModifier

public NetworkModifier getModifier()

setModifier

public void setModifier(NetworkModifier modifier)

getFitness

public PartitionFitnessFunction getFitness()

setFitness

public void setFitness(PartitionFitnessFunction fitness)

getMaxIterations

public long getMaxIterations()

setMaxIterations

public void setMaxIterations(long maxIterations)

getWrapper

public NetworkFileBackedWrapper getWrapper()

setWrapper

public void setWrapper(NetworkFileBackedWrapper wrapper)

getEnsemble

public EnsembleSA getEnsemble()

setEnsemble

public void setEnsemble(EnsembleSA ensemble)

getLastChance

public double getLastChance()

getLastAction

public NetworkSA.LastAction getLastAction()