124 lines
4.2 KiB
C++
124 lines
4.2 KiB
C++
/*
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* <moeoSubNeighborhoodExplorer.h>
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* Copyright (C) DOLPHIN Project-Team, INRIA Futurs, 2006-2008
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* (C) OPAC Team, LIFL, 2002-2008
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*
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* Arnaud Liefooghe
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* Jérémie Humeau
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*
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* This software is governed by the CeCILL license under French law and
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* abiding by the rules of distribution of free software. You can use,
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* modify and/ or redistribute the software under the terms of the CeCILL
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* license as circulated by CEA, CNRS and INRIA at the following URL
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* "http://www.cecill.info".
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*
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* As a counterpart to the access to the source code and rights to copy,
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* modify and redistribute granted by the license, users are provided only
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* with a limited warranty and the software's author, the holder of the
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* economic rights, and the successive licensors have only limited liability.
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*
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* In this respect, the user's attention is drawn to the risks associated
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* with loading, using, modifying and/or developing or reproducing the
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* software by the user in light of its specific status of free software,
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* that may mean that it is complicated to manipulate, and that also
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* therefore means that it is reserved for developers and experienced
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* professionals having in-depth computer knowledge. Users are therefore
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* encouraged to load and test the software's suitability as regards their
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* requirements in conditions enabling the security of their systems and/or
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* data to be ensured and, more generally, to use and operate it in the
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* same conditions as regards security.
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* The fact that you are presently reading this means that you have had
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* knowledge of the CeCILL license and that you accept its terms.
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*
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* ParadisEO WebSite : http://paradiseo.gforge.inria.fr
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* Contact: paradiseo-help@lists.gforge.inria.fr
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*
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*/
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//-----------------------------------------------------------------------------
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#ifndef _MOEOSIMPLESUBNEIGHBORHOODEXPLORER_H
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#define _MOEOSIMPLESUBNEIGHBORHOODEXPLORER_H
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#include <explorer/moeoSubNeighborhoodExplorer.h>
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/**
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* Explorer which explore a part of the neighborhood
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*/
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template < class Neighbor >
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class moeoSimpleSubNeighborhoodExplorer : public moeoSubNeighborhoodExplorer < Neighbor >
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{
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/** Alias for the type */
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typedef typename Neighbor::EOT MOEOT;
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/** Alias for the objeciveVector */
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typedef typename MOEOT::ObjectiveVector ObjectiveVector;
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using moeoSubNeighborhoodExplorer<Neighbor>::neighborhood;
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using moeoSubNeighborhoodExplorer<Neighbor>::neighbor;
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using moeoSubNeighborhoodExplorer<Neighbor>::number;
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public:
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/**
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* Constructor
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* @param _neighborhood a neighborhood
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* @param _number number of neighbor to explore
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* @param _eval a neighbor evaluation function
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*/
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moeoSimpleSubNeighborhoodExplorer(
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moNeighborhood<Neighbor>& _neighborhood,
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unsigned int _number,
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moEval < Neighbor > & _eval)
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: moeoSubNeighborhoodExplorer<Neighbor>(_neighborhood, _number), eval(_eval){}
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private:
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/**
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* explorer of one individual
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* @param _src the individual to explore
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* @param _dest contains new generated individuals
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*/
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void explore(MOEOT & _src, eoPop < MOEOT > & _dest)
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{
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unsigned int tmp=number;
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//if the neighborhood is not empty
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if(neighborhood.hasNeighbor(_src) && tmp>0){
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//init the neighborhood
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neighborhood.init(_src, neighbor);
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//eval the neighbor
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cycle(_src, _dest);
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tmp--;
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//repeat all instructions for each neighbor in the neighborhood until a best neighbor is found
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while (neighborhood.cont(_src) && tmp>0){
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neighborhood.next(_src, neighbor);
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cycle(_src, _dest);
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tmp--;
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}
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//if all neighbors are been visited, fix the source flag to 1 (visited solution)
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if(!neighborhood.cont(_src))
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_src.flag(1);
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}
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}
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/**
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* subfunction of explore
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* @param _src the individual to explore
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* @param _dest contains new generated individuals
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*/
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void cycle(MOEOT & _src, eoPop < MOEOT > & _dest){
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eval(_src, neighbor);
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//copy the solution (_src) at the end of the destination (_dest)
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_dest.push_back(_src);
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//move the copy
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neighbor.move(_dest.back());
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//affect objective vector to the copy
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_dest.back().objectiveVector(neighbor.fitness());
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//fix its flag to 0 (unvisited solution)
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_dest.back().flag(0);
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}
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/** Incremental evaluation of a neighbor */
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moEval < Neighbor > & eval;
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};
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#endif /*_MOEOSIMPLESUBNEIGHBORHOODEXPLORER_H_*/
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