109 lines
3.5 KiB
C++
109 lines
3.5 KiB
C++
/*
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<moNeighborhoodPerturb.h>
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Copyright (C) DOLPHIN Project-Team, INRIA Lille - Nord Europe, 2006-2010
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Sébastien Verel, Arnaud Liefooghe, Jérémie Humeau
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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 ue,
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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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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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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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#ifndef _moNeighborhoodPerturb_h
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#define _moNeighborhoodPerturb_h
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#include <eval/moEval.h>
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#include <perturb/moPerturbation.h>
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#include <neighborhood/moNeighborhood.h>
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/**
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* Neighborhood Perturbation: explore the neighborhood to perturb the solution (the neighborhood could be different as the one used in the Local Search)
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*/
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template< class Neighbor, class OtherNeighbor >
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class moNeighborhoodPerturb : public moPerturbation<Neighbor> {
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public:
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typedef typename Neighbor::EOT EOT;
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typedef moNeighborhood<OtherNeighbor> OtherNH;
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/**
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* Constructor
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* @param _otherNeighborhood a neighborhood
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* @param _eval an Evaluation Function
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*/
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moNeighborhoodPerturb(OtherNH& _otherNeighborhood, moEval<OtherNeighbor>& _eval): otherNeighborhood(_otherNeighborhood), eval(_eval) {}
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/**
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* Apply move on the solution
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* @param _solution the current solution
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* @return true
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*/
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virtual bool operator()(EOT& _solution) {
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if (otherNeighborhood.hasNeighbor(_solution)) {
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eval(_solution, current);
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current.move(_solution);
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_solution.fitness(current.fitness());
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}
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return true;
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}
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/**
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* Init the neighborhood
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* @param _sol the current solution
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*/
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virtual void init(EOT & _sol) {
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if (otherNeighborhood.hasNeighbor(_sol))
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otherNeighborhood.init(_sol, current);
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}
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/**
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* ReInit the neighborhood because a move was done
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* @param _sol the current solution
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* @param _neighbor unused neighbor (always empty)
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*/
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virtual void add(EOT & _sol, Neighbor & _neighbor) {
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(*this).init(_sol);
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}
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/**
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* Explore another neighbor because no move was done
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* @param _sol the current solution
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* @param _neighbor unused neighbor (always empty)
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*/
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virtual void update(EOT & _sol, Neighbor & _neighbor) {
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if (otherNeighborhood.cont(_sol))
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otherNeighborhood.next(_sol, current);
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else
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(*this).init(_sol);
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}
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/**
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* NOTHING TO DO
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*/
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virtual void clearMemory() {}
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private:
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OtherNH& otherNeighborhood;
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moEval<OtherNeighbor>& eval;
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OtherNeighbor current;
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};
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#endif
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