moNoFitImprSolContinue< EOT > Class Template Reference

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

#include <moNoFitImprSolContinue.h>

Inheritance diagram for moNoFitImprSolContinue< EOT >:

List of all members.

Public Types
typedef EOT::Fitness	Fitness
	Alias for the fitness.
Public Member Functions
	moNoFitImprSolContinue (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 all the stuff needed.
Private Attributes
unsigned int	maxNumberOfIterationsWithoutImprovement
	Maximum number of iterations without improvement allowed.
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.

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Detailed Description

template<class EOT>
class moNoFitImprSolContinue< EOT >

One possible stop criterion for a solution-based heuristic.

The stop criterion corresponds to a maximum number of iterations without improevement.

Definition at line 21 of file moNoFitImprSolContinue.h.

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Constructor & Destructor Documentation

template<class EOT>

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

Basic constructor.

Parameters:

	__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 34 of file moNoFitImprSolContinue.h.

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Member Function Documentation

template<class EOT>

bool moNoFitImprSolContinue< EOT >::operator()

(

const EOT &

__sol

)

[inline, virtual]

Function that activates the stopping criterion.

Indicates if the fitness has not been improved since a given 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 45 of file moNoFitImprSolContinue.h.

References moNoFitImprSolContinue< EOT >::counter, moNoFitImprSolContinue< EOT >::firstFitnessSaved, moNoFitImprSolContinue< EOT >::fitness, moNoFitImprSolContinue< EOT >::maximization, and moNoFitImprSolContinue< EOT >::maxNumberOfIterationsWithoutImprovement.

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Member Data Documentation

template<class EOT>

bool moNoFitImprSolContinue< 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 solutions wiht a fitness that is worse that the best known fitness (in this case, the counter is not reinitialized).

Definition at line 96 of file moNoFitImprSolContinue.h.

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

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

• moNoFitImprSolContinue.h

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