120 lines
4.5 KiB
C++
120 lines
4.5 KiB
C++
/*
|
|
<moFirstImprHC.h>
|
|
Copyright (C) DOLPHIN Project-Team, INRIA Lille - Nord Europe, 2006-2010
|
|
|
|
Sebastien Verel, Arnaud Liefooghe, Jeremie Humeau
|
|
|
|
This software is governed by the CeCILL license under French law and
|
|
abiding by the rules of distribution of free software. You can ue,
|
|
modify and/ or redistribute the software under the terms of the CeCILL
|
|
license as circulated by CEA, CNRS and INRIA at the following URL
|
|
"http://www.cecill.info".
|
|
|
|
In this respect, the user's attention is drawn to the risks associated
|
|
with loading, using, modifying and/or developing or reproducing the
|
|
software by the user in light of its specific status of free software,
|
|
that may mean that it is complicated to manipulate, and that also
|
|
therefore means that it is reserved for developers and experienced
|
|
professionals having in-depth computer knowledge. Users are therefore
|
|
encouraged to load and test the software's suitability as regards their
|
|
requirements in conditions enabling the security of their systems and/or
|
|
data to be ensured and, more generally, to use and operate it in the
|
|
same conditions as regards security.
|
|
The fact that you are presently reading this means that you have had
|
|
knowledge of the CeCILL license and that you accept its terms.
|
|
|
|
ParadisEO WebSite : http://paradiseo.gforge.inria.fr
|
|
Contact: paradiseo-help@lists.gforge.inria.fr
|
|
*/
|
|
|
|
#ifndef _moFirstImprHC_h
|
|
#define _moFirstImprHC_h
|
|
|
|
#include <algo/moLocalSearch.h>
|
|
#include <explorer/moFirstImprHCexplorer.h>
|
|
#include <continuator/moTrueContinuator.h>
|
|
#include <eval/moEval.h>
|
|
#include <eoEvalFunc.h>
|
|
|
|
/**
|
|
* First improvement HC:
|
|
* Hill-Climbing local search
|
|
*
|
|
* At each iteration,
|
|
* one of the random solution in the neighborhood is selected
|
|
* if the selected neighbor have higher fitness than the current solution
|
|
* then the solution is replaced by the selected neighbor
|
|
* the algorithm stops when there is no higher neighbor
|
|
*/
|
|
template<class Neighbor>
|
|
class moFirstImprHC: public moLocalSearch<Neighbor>
|
|
{
|
|
public:
|
|
typedef typename Neighbor::EOT EOT;
|
|
typedef moNeighborhood<Neighbor> Neighborhood ;
|
|
|
|
/**
|
|
* Basic constructor for a hill-climber
|
|
* @param _neighborhood the neighborhood
|
|
* @param _fullEval the full evaluation function
|
|
* @param _eval neighbor's evaluation function
|
|
*/
|
|
moFirstImprHC(Neighborhood& _neighborhood, eoEvalFunc<EOT>& _fullEval, moEval<Neighbor>& _eval):
|
|
moLocalSearch<Neighbor>(explorer, trueCont, _fullEval),
|
|
explorer(_neighborhood, _eval, defaultNeighborComp, defaultSolNeighborComp)
|
|
{}
|
|
|
|
/**
|
|
* Simple constructor for a hill-climber
|
|
* @param _neighborhood the neighborhood
|
|
* @param _fullEval the full evaluation function
|
|
* @param _eval neighbor's evaluation function
|
|
* @param _cont an external continuator
|
|
*/
|
|
moFirstImprHC(Neighborhood& _neighborhood, eoEvalFunc<EOT>& _fullEval, moEval<Neighbor>& _eval, moContinuator<Neighbor>& _cont):
|
|
moLocalSearch<Neighbor>(explorer, _cont, _fullEval),
|
|
explorer(_neighborhood, _eval, defaultNeighborComp, defaultSolNeighborComp)
|
|
{}
|
|
|
|
/**
|
|
* General constructor for a hill-climber
|
|
* @param _neighborhood the neighborhood
|
|
* @param _fullEval the full evaluation function
|
|
* @param _eval neighbor's evaluation function
|
|
* @param _cont an external continuator
|
|
* @param _compN a neighbor vs neighbor comparator
|
|
* @param _compSN a solution vs neighbor comparator
|
|
*/
|
|
moFirstImprHC(Neighborhood& _neighborhood, eoEvalFunc<EOT>& _fullEval, moEval<Neighbor>& _eval, moContinuator<Neighbor>& _cont, moNeighborComparator<Neighbor>& _compN, moSolNeighborComparator<Neighbor>& _compSN):
|
|
moLocalSearch<Neighbor>(explorer, _cont, _fullEval),
|
|
explorer(_neighborhood, _eval, _compN, _compSN)
|
|
{}
|
|
|
|
/**
|
|
* to never stop the hill climbing
|
|
*
|
|
*/
|
|
virtual void alwaysContinue() {
|
|
explorer.alwaysContinue();
|
|
}
|
|
|
|
/**
|
|
* Return the class id.
|
|
* @return the class name as a std::string
|
|
*/
|
|
virtual std::string className() const {
|
|
return "moFirstImprHV";
|
|
}
|
|
|
|
private:
|
|
// always true continuator
|
|
moTrueContinuator<Neighbor> trueCont;
|
|
// compare the fitness values of neighbors: true if strictly greater
|
|
moNeighborComparator<Neighbor> defaultNeighborComp;
|
|
// compare the fitness values of the solution and the neighbor: true if strictly greater
|
|
moSolNeighborComparator<Neighbor> defaultSolNeighborComp;
|
|
// the explorer of the first improvement HC
|
|
moFirstImprHCexplorer<Neighbor> explorer;
|
|
};
|
|
|
|
#endif
|