moSteadyFitSolContinue< EOT > Class Template Reference

One possible stopping criterion for a solution-based heuristic. More...

#include <moSteadyFitSolContinue.h>

Inheritance diagram for moSteadyFitSolContinue< EOT >:

List of all members.

Public Types
typedef EOT::Fitness	Fitness
	Alias for the fitness.
Public Member Functions
	moSteadyFitSolContinue (unsigned int __maxNumberOfIterations, unsigned int __maxNumberOfIterationWithoutImprovement, bool __maximization=true)
	Basic constructor.
bool	operator() (const EOT &__sol)
	Function that activates the stopping criterion.
void	init ()
	Procedure which allows to initialise the stuff needed.
Private Attributes
unsigned int	maxNumberOfIterations
	Maximum number of iterations before considering the fitness.
unsigned int	maxNumberOfIterationsWithoutImprovement
	Maximum number of iterations without improvement allowed.
bool	maxNumberOfIterationsReached
	Flag that indicates that the maxNumberIteration have been reached.
bool	firstFitnessSaved
	Flag that this is the first time that the fitness is used.
Fitness	fitness
	Current Fitness.
bool	maximization
	Flag that indicate if there is a maximization (true) or a minimization (false) of the fitness value.
unsigned int	counter
	The iteration couter.

---

Detailed Description

template<class EOT>
class moSteadyFitSolContinue< EOT >

One possible stopping criterion for a solution-based heuristic.

The stop criterion corresponds to a maximum number of iterations without improvement (after a minimum number of iterations).

Definition at line 21 of file moSteadyFitSolContinue.h.

---

Constructor & Destructor Documentation

template<class EOT>

moSteadyFitSolContinue< EOT >::moSteadyFitSolContinue	(	unsigned int	__maxNumberOfIterations,
		unsigned int	__maxNumberOfIterationWithoutImprovement,
		bool	__maximization = true
	)			[inline]

Basic constructor.

Parameters:

	__maxNumberOfIterations	The number of iterations to reach before looking for the fitness.
	__maxNumberOfIterationWithoutImprovement	The number of iterations without fitness improvement to reach for stop.
	__maximization	Indicate if the the aim is to maximize or minimize the fitness.

Definition at line 35 of file moSteadyFitSolContinue.h.

---

Member Function Documentation

template<class EOT>

bool moSteadyFitSolContinue< EOT >::operator()

(

const EOT &

__sol

)

[inline, virtual]

Function that activates the stopping criterion.

Indicates if the fitness has not been improved since a number of iterations (after a minimum of iterations).

Parameters:

__sol

the current solution.

Returns:

true or false.

Implements eoUF< const EOT &, bool >.

Definition at line 47 of file moSteadyFitSolContinue.h.

References moSteadyFitSolContinue< EOT >::counter, moSteadyFitSolContinue< EOT >::firstFitnessSaved, moSteadyFitSolContinue< EOT >::fitness, moSteadyFitSolContinue< EOT >::maximization, moSteadyFitSolContinue< EOT >::maxNumberOfIterations, moSteadyFitSolContinue< EOT >::maxNumberOfIterationsReached, and moSteadyFitSolContinue< EOT >::maxNumberOfIterationsWithoutImprovement.

---

Member Data Documentation

template<class EOT>

bool moSteadyFitSolContinue< EOT >::maximization [private]

Flag that indicate if there is a maximization (true) or a minimization (false) of the fitness value.

It can be interesting to know this information because some solution-based metaheuristics can generate solution with a fitness that is worse that the best known fitness (in this case, the counter is not reinitialized).

Definition at line 114 of file moSteadyFitSolContinue.h.

Referenced by moSteadyFitSolContinue< EOT >::operator()().

---

The documentation for this class was generated from the following file:

• moSteadyFitSolContinue.h

---