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# moeoReferencePointIndicatorBasedFitnessAssignment.h

    00001 // -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-
    00002
    00003 //-----------------------------------------------------------------------------
    00004 // moeoReferencePointIndicatorBasedFitnessAssignment.h
    00005 // (c) OPAC Team (LIFL), Dolphin Project (INRIA), 2007
    00006 /*
    00007     This library...
    00008
    00009     Contact: paradiseo-help@lists.gforge.inria.fr, http://paradiseo.gforge.inria.fr
    00010  */
    00011 //-----------------------------------------------------------------------------
    00012
    00013 #ifndef MOEOREFERENCEPOINTINDICATORBASEDFITNESSASSIGNMENT_H_
    00014 #define MOEOREFERENCEPOINTINDICATORBASEDFITNESSASSIGNMENT_H_
    00015
    00016 #include <math.h>
    00017 #include <eoPop.h>
    00018 #include <fitness/moeoFitnessAssignment.h>
    00019 #include <metric/moeoNormalizedSolutionVsSolutionBinaryMetric.h>
    00020
    00024 template < class MOEOT >
    00025 class moeoReferencePointIndicatorBasedFitnessAssignment : public moeoFitnessAssignment < MOEOT >
    00026 {
    00027 public:
    00028
    00030     typedef typename MOEOT::ObjectiveVector ObjectiveVector;
    00031
    00037     moeoReferencePointIndicatorBasedFitnessAssignment (ObjectiveVector & _refPoint, moeoNormalizedSolutionVsSolutionBinaryMetric < ObjectiveVector, double > & _metric) :
    00038             refPoint(_refPoint), metric(_metric)
    00039     {}
    00040
    00041
    00046     void operator()(eoPop < MOEOT > & _pop)
    00047     {
    00048         // 1 - setting of the bounds
    00049         setup(_pop);
    00050         // 2 - setting fitnesses
    00051         setFitnesses(_pop);
    00052     }
    00053
    00054
    00060     void updateByDeleting(eoPop < MOEOT > & _pop, ObjectiveVector & _objVec)
    00061     {
    00062         // nothing to do  ;-)
    00063     }
    00064
    00065
    00066 protected:
    00067
    00069     ObjectiveVector & refPoint;
    00071     moeoNormalizedSolutionVsSolutionBinaryMetric < ObjectiveVector, double > & metric;
    00072
    00073
    00078     void setup(const eoPop < MOEOT > & _pop)
    00079     {
    00080         double min, max;
    00081         for (unsigned int i=0; i<ObjectiveVector::Traits::nObjectives(); i++)
    00082         {
    00083             min = refPoint[i];
    00084             max = refPoint[i];
    00085             for (unsigned int j=0; j<_pop.size(); j++)
    00086             {
    00087                 min = std::min(min, _pop[j].objectiveVector()[i]);
    00088                 max = std::max(max, _pop[j].objectiveVector()[i]);
    00089             }
    00090             // setting of the bounds for the objective i
    00091             metric.setup(min, max, i);
    00092         }
    00093     }
    00094
    00099     void setFitnesses(eoPop < MOEOT > & _pop)
    00100     {
    00101         for (unsigned int i=0; i<_pop.size(); i++)
    00102         {
    00103             _pop[i].fitness(- metric(_pop[i].objectiveVector(), refPoint) );
    00104         }
    00105     }
    00106
    00107 };
    00108
    00109 #endif /*MOEOREFERENCEPOINTINDICATORBASEDFITNESSASSIGNMENT_H_*/