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trick to allow maximization

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Arnaud Liefooghe 2014-10-17 15:27:43 +02:00
commit 5a74f9a3c6
1 changed files with 93 additions and 90 deletions
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moeo/src/metric/moeoHypervolumeBinaryMetric.h
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@ -1,39 +1,39 @@
/* /*
* <moeoHypervolumeBinaryMetric.h> * <moeoHypervolumeBinaryMetric.h>
* Copyright (C) DOLPHIN Project-Team, INRIA Futurs, 2006-2007 * Copyright (C) DOLPHIN Project-Team, INRIA Futurs, 2006-2007
* (C) OPAC Team, LIFL, 2002-2007 * (C) OPAC Team, LIFL, 2002-2007
* *
* July 2013: Bug fix in the recursive call of hypervolume (corrected thanks to Yann Semet and Dimo Brockhoff) * July 2013: Bug fix in the recursive call of hypervolume (corrected thanks to Yann Semet and Dimo Brockhoff)
* *
* *
* This software is governed by the CeCILL license under French law and * This software is governed by the CeCILL license under French law and
* abiding by the rules of distribution of free software. You can use, * abiding by the rules of distribution of free software. You can use,
* modify and/ or redistribute the software under the terms of the CeCILL * modify and/ or redistribute the software under the terms of the CeCILL
* license as circulated by CEA, CNRS and INRIA at the following URL * license as circulated by CEA, CNRS and INRIA at the following URL
* "http://www.cecill.info". * "http://www.cecill.info".
* *
* As a counterpart to the access to the source code and rights to copy, * 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 * modify and redistribute granted by the license, users are provided only
* with a limited warranty and the software's author, the holder of the * with a limited warranty and the software's author, the holder of the
* economic rights, and the successive licensors have only limited liability. * economic rights, and the successive licensors have only limited liability.
* *
* In this respect, the user's attention is drawn to the risks associated * In this respect, the user's attention is drawn to the risks associated
* with loading, using, modifying and/or developing or reproducing the * with loading, using, modifying and/or developing or reproducing the
* software by the user in light of its specific status of free software, * 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 * that may mean that it is complicated to manipulate, and that also
* therefore means that it is reserved for developers and experienced * therefore means that it is reserved for developers and experienced
* professionals having in-depth computer knowledge. Users are therefore * professionals having in-depth computer knowledge. Users are therefore
* encouraged to load and test the software's suitability as regards their * encouraged to load and test the software's suitability as regards their
* requirements in conditions enabling the security of their systems and/or * 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 * data to be ensured and, more generally, to use and operate it in the
* same conditions as regards security. * same conditions as regards security.
* The fact that you are presently reading this means that you have had * The fact that you are presently reading this means that you have had
* knowledge of the CeCILL license and that you accept its terms. * knowledge of the CeCILL license and that you accept its terms.
* *
* ParadisEO WebSite : http://paradiseo.gforge.inria.fr * ParadisEO WebSite : http://paradiseo.gforge.inria.fr
* Contact: paradiseo-help@lists.gforge.inria.fr * Contact: paradiseo-help@lists.gforge.inria.fr
* *
*/ */
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
#ifndef MOEOHYPERVOLUMEBINARYMETRIC_H_ #ifndef MOEOHYPERVOLUMEBINARYMETRIC_H_
@ -57,8 +57,8 @@
*/ */
template < class ObjectiveVector > template < class ObjectiveVector >
class moeoHypervolumeBinaryMetric : public moeoNormalizedSolutionVsSolutionBinaryMetric < ObjectiveVector, double > class moeoHypervolumeBinaryMetric : public moeoNormalizedSolutionVsSolutionBinaryMetric < ObjectiveVector, double >
{ {
public: public:
/** /**
* Ctor * Ctor
@ -66,14 +66,6 @@ class moeoHypervolumeBinaryMetric : public moeoNormalizedSolutionVsSolutionBinar
*/ */
moeoHypervolumeBinaryMetric(double _rho = 1.1) : moeoNormalizedSolutionVsSolutionBinaryMetric<ObjectiveVector, double>(), rho(_rho) moeoHypervolumeBinaryMetric(double _rho = 1.1) : moeoNormalizedSolutionVsSolutionBinaryMetric<ObjectiveVector, double>(), rho(_rho)
{ {
// not-a-maximization problem check
for (unsigned int i=0; i<ObjectiveVector::Traits::nObjectives(); i++)
{
if (ObjectiveVector::Traits::maximizing(i))
{
throw std::runtime_error("Hypervolume binary metric not yet implemented for a maximization problem in moeoHypervolumeBinaryMetric");
}
}
// consistency check // consistency check
if (rho < 1) if (rho < 1)
{ {
@ -92,6 +84,17 @@ class moeoHypervolumeBinaryMetric : public moeoNormalizedSolutionVsSolutionBinar
double operator()(const ObjectiveVector & _o1, const ObjectiveVector & _o2) double operator()(const ObjectiveVector & _o1, const ObjectiveVector & _o2)
{ {
double result; double result;
// transform maximizing objectives into minimizing objectives
ObjectiveVector o1 = _o1;
ObjectiveVector o2 = _o2;
for (unsigned int i=0; i<ObjectiveVector::Traits::nObjectives(); i++)
{
if (ObjectiveVector::Traits::maximizing(i))
{
o1[i] = bounds[i].maximum() - o1[i] + bounds[i].minimum();
o2[i] = bounds[i].maximum() - o2[i] + bounds[i].minimum();
}
}
// if _o2 is dominated by _o1 // if _o2 is dominated by _o1
if ( paretoComparator(_o2,_o1) ) if ( paretoComparator(_o2,_o1) )
{ {
@ -105,7 +108,7 @@ class moeoHypervolumeBinaryMetric : public moeoNormalizedSolutionVsSolutionBinar
} }
private: private:
/** value used to compute the reference point from the worst values for each objective */ /** value used to compute the reference point from the worst values for each objective */
double rho; double rho;
@ -166,6 +169,6 @@ class moeoHypervolumeBinaryMetric : public moeoNormalizedSolutionVsSolutionBinar
return result; return result;
} }
}; };
#endif /*MOEOHYPERVOLUMEBINARYMETRIC_H_*/ #endif /*MOEOHYPERVOLUMEBINARYMETRIC_H_*/