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git-svn-id: svn://scm.gforge.inria.fr/svnroot/paradiseo@1813 331e1502-861f-0410-8da2-ba01fb791d7f
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jhumeau 2010-05-17 14:56:42 +00:00
commit 3d8057ac4d
88 changed files with 2726 additions and 2720 deletions
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96
trunk/paradiseo-mo/src/coolingSchedule/moSimpleCoolingSchedule.h
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@ -39,65 +39,65 @@
/**
* Classical cooling Schedule of the temperature in the simulated algorithm with initial and final temperature and a factor of decrease
*
*
*/
template< class EOT >
class moSimpleCoolingSchedule : public moCoolingSchedule<EOT>
{
public:
/**
* default constructor
* @param _initT initial temperature
* @param _alpha factor of decreasing
* @param _span number of iteration with equal temperature
* @param _finalT final temperature, threshold of the stopping criteria
*/
moSimpleCoolingSchedule(double _initT, double _alpha, unsigned _span, double _finalT) : initT(_initT), alpha(_alpha), span(_span), finalT(_finalT) {}
/**
* default constructor
* @param _initT initial temperature
* @param _alpha factor of decreasing
* @param _span number of iteration with equal temperature
* @param _finalT final temperature, threshold of the stopping criteria
*/
moSimpleCoolingSchedule(double _initT, double _alpha, unsigned _span, double _finalT) : initT(_initT), alpha(_alpha), span(_span), finalT(_finalT) {}
/**
* Initial temperature
* @param _solution initial solution
* @return the initial temperature
*/
virtual double init(EOT & _solution) {
// number of iteration with the same temperature
step = 0;
/**
* Initial temperature
* @param _solution initial solution
* @return the initial temperature
*/
virtual double init(EOT & _solution) {
// number of iteration with the same temperature
step = 0;
return initT;
}
return initT;
}
/**
* update the temperature by a factor
* @param _temp current temperature to update
*/
virtual void update(double& _temp) {
if (step >= span) {
_temp *= alpha;
step = 0;
} else
step++;
}
/**
* update the temperature by a factor
* @param _temp current temperature to update
*/
virtual void update(double& _temp) {
if (step >= span) {
_temp *= alpha;
step = 0;
} else
step++;
}
/**
* compare the temperature to the threshold
* @param _temp current temperature
* @return true if the current temperature is over the threshold (final temperature)
*/
virtual bool operator()(double _temp) {
return _temp > finalT;
}
/**
* compare the temperature to the threshold
* @param _temp current temperature
* @return true if the current temperature is over the threshold (final temperature)
*/
virtual bool operator()(double _temp) {
return _temp > finalT;
}
private:
// initial temperature
double initT;
// coefficient of decrease
double alpha;
// maximum number of iterations at the same temperature
unsigned int span;
// threshold temperature
double finalT;
// number of steps with the same temperature
unsigned int step;
// initial temperature
double initT;
// coefficient of decrease
double alpha;
// maximum number of iterations at the same temperature
unsigned int span;
// threshold temperature
double finalT;
// number of steps with the same temperature
unsigned int step;
};