Migration from SVN

moeo/tutorial/Lesson1/Sch1.cpp

@@ -0,0 +1,140 @@
+/*
+* <Sch1.cpp>
+* Copyright (C) DOLPHIN Project-Team, INRIA Futurs, 2006-2007
+* (C) OPAC Team, LIFL, 2002-2007
+*
+* Abdelhakim Deneche, Arnaud Liefooghe
+*
+* This software is governed by the CeCILL license under French law and
+* abiding by the rules of distribution of free software.  You can  use,
+* 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".
+*
+* As a counterpart to the access to the source code and  rights to copy,
+* modify and redistribute granted by the license, users are provided only
+* with a limited warranty  and the software's author,  the holder of the
+* economic rights,  and the successive licensors  have only  limited liability.
+*
+* 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
+*
+*/
+//-----------------------------------------------------------------------------
+
+#include <stdio.h>
+#include <moeo>
+#include <es/eoRealInitBounded.h>
+#include <es/eoRealOp.h>
+
+using namespace std;
+
+
+// the moeoObjectiveVectorTraits : minimizing 2 objectives
+class Sch1ObjectiveVectorTraits : public moeoObjectiveVectorTraits
+{
+public:
+    static bool minimizing (int i)
+    {
+        return true;
+    }
+    static bool maximizing (int i)
+    {
+        return false;
+    }
+    static unsigned int nObjectives ()
+    {
+        return 2;
+    }
+};
+
+
+// objective vector of real values
+typedef moeoRealObjectiveVector < Sch1ObjectiveVectorTraits > Sch1ObjectiveVector;
+
+
+// multi-objective evolving object for the Sch1 problem
+class Sch1 : public moeoRealVector < Sch1ObjectiveVector >
+{
+public:
+    Sch1() : moeoRealVector < Sch1ObjectiveVector > (1)
+    {}
+};
+
+
+// evaluation of objective functions
+class Sch1Eval : public moeoEvalFunc < Sch1 >
+{
+public:
+    void operator () (Sch1 & _sch1)
+    {
+        if (_sch1.invalidObjectiveVector())
+        {
+            Sch1ObjectiveVector objVec;
+            double x = _sch1[0];
+            objVec[0] = x * x;
+            objVec[1] = (x - 2.0) * (x - 2.0);
+            _sch1.objectiveVector(objVec);
+        }
+    }
+};
+
+
+// main
+int main (int argc, char *argv[])
+{
+    eoParser parser(argc, argv);  // for user-parameter reading
+    eoState state;                // to keep all things allocated
+
+    // parameters
+    unsigned int POP_SIZE = parser.createParam((unsigned int)(100), "popSize", "Population size",'P',"Param").value();
+    unsigned int MAX_GEN = parser.createParam((unsigned int)(100), "maxGen", "Maximum number of generations",'G',"Param").value();
+    double M_EPSILON = parser.createParam(0.01, "mutEpsilon", "epsilon for mutation",'e',"Param").value();
+    double P_CROSS = parser.createParam(0.25, "pCross", "Crossover probability",'C',"Param").value();
+    double P_MUT = parser.createParam(0.35, "pMut", "Mutation probability",'M',"Param").value();
+
+    // objective functions evaluation
+    Sch1Eval eval;
+
+    // crossover and mutation
+    eoQuadCloneOp < Sch1 > xover;
+    eoUniformMutation < Sch1 > mutation (M_EPSILON);
+
+    // generate initial population
+    eoRealVectorBounds bounds (1, 0.0, 2.0);	// [0, 2]
+    eoRealInitBounded < Sch1 > init (bounds);
+    eoPop < Sch1 > pop (POP_SIZE, init);
+
+    // build NSGA-II
+    moeoNSGAII < Sch1 > nsgaII (MAX_GEN, eval, xover, P_CROSS, mutation, P_MUT);
+
+    // help ?
+    make_help(parser);
+
+    // run the algo
+    nsgaII (pop);
+
+    // extract first front of the final population using an moeoArchive (this is the output of nsgaII)
+    moeoUnboundedArchive < Sch1 > arch;
+    arch(pop);
+
+    // printing of the final archive
+    cout << "Final Archive" << endl;
+    arch.sortedPrintOn (cout);
+    cout << endl;
+
+    return EXIT_SUCCESS;
+}