org.opt4j.optimizer.sa

Class CoolingScheduleExponential

java.lang.Object

org.opt4j.optimizer.sa.CoolingScheduleExponential

All Implemented Interfaces:

CoolingSchedule

public class CoolingScheduleExponential
extends Object
implements CoolingSchedule

The CoolingScheduleExponential is a CoolingSchedule for the SimulatedAnnealing.

tn - final temperature
t0 - initial temperature
i - current iteration
n - maximal number of iterations
a - alpha value

The current temperature is calculated by tn + t0 * a^i.

Author:

lukasiewycz

Constructor Summary

Constructors

Constructor and Description
CoolingScheduleExponential(double t0, double tn, double alpha) Constructs a new CoolingScheduleExponential.

Method Summary

Modifier and Type	Method and Description
double	getTemperature(int i, int n) Returns the temperature for the iteration i of the maximal number of iterations n.

Methods inherited from class java.lang.Object

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

Constructor Detail

CoolingScheduleExponential

@Inject
public CoolingScheduleExponential(double t0,
                                          double tn,
                                          double alpha)

Constructs a new CoolingScheduleExponential.

Parameters:

t0 - the initial temperature (using namespace CoolingSchedule)

tn - the final temperature (using namespace CoolingSchedule ) )

alpha - the alpha value

Method Detail

getTemperature

public double getTemperature(int i,
                             int n)

Description copied from interface: CoolingSchedule

Returns the temperature for the iteration i of the maximal number of iterations n.

Specified by:

getTemperature in interface CoolingSchedule

Parameters:

i - the current iteration

n - the maximal number of iterations

Returns:

the temperature for the current iteration