39709d3d12
git-svn-id: svn://scm.gforge.inria.fr/svnroot/paradiseo@788 331e1502-861f-0410-8da2-ba01fb791d7f
119 lines
4.1 KiB
C++
119 lines
4.1 KiB
C++
/*
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* <moeoBinaryMetricSavingUpdater.h>
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* Copyright (C) DOLPHIN Project-Team, INRIA Futurs, 2006-2007
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* (C) OPAC Team, LIFL, 2002-2007
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*
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* Arnaud Liefooghe
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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 MOEOBINARYMETRICSAVINGUPDATER_H_
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#define MOEOBINARYMETRICSAVINGUPDATER_H_
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#include <fstream>
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#include <string>
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#include <vector>
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#include <eoPop.h>
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#include <utils/eoUpdater.h>
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#include <metric/moeoMetric.h>
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/**
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* This class allows to save the progression of a binary metric comparing the objective vectors of the current population (or archive)
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* with the objective vectors of the population (or archive) of the generation (n-1) into a file
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*/
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template < class MOEOT >
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class moeoBinaryMetricSavingUpdater : public eoUpdater
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{
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public:
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/** The objective vector type of a solution */
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typedef typename MOEOT::ObjectiveVector ObjectiveVector;
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/**
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* Ctor
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* @param _metric the binary metric comparing two Pareto sets
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* @param _pop the main population
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* @param _filename the target filename
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*/
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moeoBinaryMetricSavingUpdater (moeoVectorVsVectorBinaryMetric < ObjectiveVector, double > & _metric, const eoPop < MOEOT > & _pop, std::string _filename) :
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metric(_metric), pop(_pop), filename(_filename), counter(1)
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{}
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/**
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* Saves the metric's value for the current generation
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*/
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void operator()()
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{
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if (pop.size())
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{
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if (firstGen)
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{
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firstGen = false;
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}
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else
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{
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// creation of the two Pareto sets
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std::vector < ObjectiveVector > from;
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std::vector < ObjectiveVector > to;
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for (unsigned int i=0; i<pop.size(); i++)
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from.push_back(pop[i].objectiveVector());
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for (unsigned int i=0 ; i<oldPop.size(); i++)
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to.push_back(oldPop[i].objectiveVector());
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// writing the result into the file
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std::ofstream f (filename.c_str(), std::ios::app);
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f << counter++ << ' ' << metric(from,to) << std::endl;
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f.close();
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}
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oldPop = pop;
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}
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}
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private:
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/** binary metric comparing two Pareto sets */
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moeoVectorVsVectorBinaryMetric < ObjectiveVector, double > & metric;
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/** main population */
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const eoPop < MOEOT > & pop;
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/** (n-1) population */
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eoPop< MOEOT > oldPop;
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/** target filename */
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std::string filename;
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/** is it the first generation ? */
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bool firstGen;
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/** counter */
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unsigned int counter;
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};
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#endif /*MOEOBINARYMETRICSAVINGUPDATER_H_*/
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