Move the hyper volume dual difference metric in a separated file
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Johann Dreo
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2 changed files with 117 additions and 86 deletions
117
moeo/src/metric/moeoDualHyperVolumeDifferenceMetric.h
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117
moeo/src/metric/moeoDualHyperVolumeDifferenceMetric.h
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/*
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(c) 2013 Thales group
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; version 2
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of the License.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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Contact: http://eodev.sourceforge.net
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Authors:
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Johann Dréo <johann.dreo@thalesgroup.com>
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*/
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#ifndef MOEODUALHYPERVOLUMEDIFFERENCEMETRIC_H_
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#define MOEODUALHYPERVOLUMEDIFFERENCEMETRIC_H_
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#include <metric/moeoHyperVolumeDifferenceMetric.h>
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template<class ObjectiveVector>
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class moeoDualHyperVolumeDifferenceMetric : public moeoHyperVolumeDifferenceMetric<ObjectiveVector>
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{
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protected:
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using moeoHyperVolumeDifferenceMetric<ObjectiveVector>::rho;
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using moeoHyperVolumeDifferenceMetric<ObjectiveVector>::normalize;
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using moeoHyperVolumeDifferenceMetric<ObjectiveVector>::ref_point;
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using moeoHyperVolumeDifferenceMetric<ObjectiveVector>::bounds;
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public:
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typedef typename ObjectiveVector::Type Type;
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moeoDualHyperVolumeDifferenceMetric( bool _normalize=true, double _rho=1.1)
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: moeoHyperVolumeDifferenceMetric<ObjectiveVector>(_normalize, _rho)
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{
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}
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moeoDualHyperVolumeDifferenceMetric( bool _normalize/*=true*/, ObjectiveVector& _ref_point/*=NULL*/ )
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: moeoHyperVolumeDifferenceMetric<ObjectiveVector>( _normalize, _ref_point )
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{
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}
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/**
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* calculates and returns the HyperVolume value of a pareto front
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* @param _set1 the vector contains all objective Vector of the first pareto front
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* @param _set2 the vector contains all objective Vector of the second pareto front
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*/
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virtual double operator()(const std::vector < ObjectiveVector > & _set1, const std::vector < ObjectiveVector > & _set2)
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{
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#ifndef NDEBUG
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// the two sets must be homogeneous in feasibility
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assert( _set1.size() > 0 );
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for( unsigned int i=1; i<_set1.size(); ++i ) {
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assert( _set1[i].is_feasible() == _set1[0].is_feasible() );
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}
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assert( _set2.size() > 0 );
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for( unsigned int i=1; i<_set2.size(); ++i ) {
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assert( _set2[i].is_feasible() == _set2[0].is_feasible() );
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}
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// and they must have the same feasibility
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assert( _set1[0].is_feasible() == _set2[0].is_feasible() );
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#endif
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bool feasible = _set1[0].is_feasible();
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double hypervolume_set1;
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double hypervolume_set2;
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if(rho >= 1.0){
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//determine bounds
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setup(_set1, _set2);
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//determine reference point
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for (unsigned int i=0; i<ObjectiveVector::Traits::nObjectives(); i++){
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if(normalize){
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if (ObjectiveVector::Traits::minimizing(i))
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ref_point[i]= Type(rho, feasible);
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else
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ref_point[i]= Type(1-rho, feasible);
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}
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else{
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if (ObjectiveVector::Traits::minimizing(i))
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ref_point[i]= Type(bounds[i].maximum() * rho, feasible);
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else
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ref_point[i]= Type(bounds[i].maximum() * (1-rho), feasible);
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}
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}
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//if no normalization, reinit bounds to O..1 for
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if(!normalize)
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for (unsigned int i=0; i<ObjectiveVector::Traits::nObjectives(); i++)
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bounds[i] = eoRealInterval(0,1);
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}
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else if(normalize)
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setup(_set1, _set2);
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moeoHyperVolumeMetric <ObjectiveVector> unaryMetric(ref_point, bounds);
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hypervolume_set1 = unaryMetric(_set1);
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hypervolume_set2 = unaryMetric(_set2);
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return hypervolume_set1 - hypervolume_set2;
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}
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};
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#endif /*MOEODUALHYPERVOLUMEDIFFERENCEMETRIC_H_*/
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@ -197,90 +197,4 @@ class moeoHyperVolumeDifferenceMetric : public moeoVectorVsVectorBinaryMetric <
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};
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template<class ObjectiveVector>
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class moeoDualHyperVolumeDifferenceMetric : public moeoHyperVolumeDifferenceMetric<ObjectiveVector>
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{
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protected:
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using moeoHyperVolumeDifferenceMetric<ObjectiveVector>::rho;
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using moeoHyperVolumeDifferenceMetric<ObjectiveVector>::normalize;
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using moeoHyperVolumeDifferenceMetric<ObjectiveVector>::ref_point;
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using moeoHyperVolumeDifferenceMetric<ObjectiveVector>::bounds;
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public:
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typedef typename ObjectiveVector::Type Type;
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moeoDualHyperVolumeDifferenceMetric( bool _normalize=true, double _rho=1.1)
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: moeoHyperVolumeDifferenceMetric<ObjectiveVector>(_normalize, _rho)
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{
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}
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moeoDualHyperVolumeDifferenceMetric( bool _normalize/*=true*/, ObjectiveVector& _ref_point/*=NULL*/ )
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: moeoHyperVolumeDifferenceMetric<ObjectiveVector>( _normalize, _ref_point )
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{
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}
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/**
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* calculates and returns the HyperVolume value of a pareto front
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* @param _set1 the vector contains all objective Vector of the first pareto front
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* @param _set2 the vector contains all objective Vector of the second pareto front
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*/
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virtual double operator()(const std::vector < ObjectiveVector > & _set1, const std::vector < ObjectiveVector > & _set2)
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{
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#ifndef NDEBUG
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// the two sets must be homogeneous in feasibility
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assert( _set1.size() > 0 );
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for( unsigned int i=1; i<_set1.size(); ++i ) {
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assert( _set1[i].is_feasible() == _set1[0].is_feasible() );
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}
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assert( _set2.size() > 0 );
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for( unsigned int i=1; i<_set2.size(); ++i ) {
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assert( _set2[i].is_feasible() == _set2[0].is_feasible() );
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}
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// and they must have the same feasibility
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assert( _set1[0].is_feasible() == _set2[0].is_feasible() );
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#endif
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bool feasible = _set1[0].is_feasible();
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double hypervolume_set1;
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double hypervolume_set2;
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if(rho >= 1.0){
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//determine bounds
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setup(_set1, _set2);
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//determine reference point
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for (unsigned int i=0; i<ObjectiveVector::Traits::nObjectives(); i++){
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if(normalize){
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if (ObjectiveVector::Traits::minimizing(i))
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ref_point[i]= Type(rho, feasible);
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else
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ref_point[i]= Type(1-rho, feasible);
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}
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else{
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if (ObjectiveVector::Traits::minimizing(i))
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ref_point[i]= Type(bounds[i].maximum() * rho, feasible);
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else
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ref_point[i]= Type(bounds[i].maximum() * (1-rho), feasible);
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}
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}
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//if no normalization, reinit bounds to O..1 for
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if(!normalize)
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for (unsigned int i=0; i<ObjectiveVector::Traits::nObjectives(); i++)
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bounds[i] = eoRealInterval(0,1);
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}
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else if(normalize)
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setup(_set1, _set2);
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moeoHyperVolumeMetric <ObjectiveVector> unaryMetric(ref_point, bounds);
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hypervolume_set1 = unaryMetric(_set1);
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hypervolume_set2 = unaryMetric(_set2);
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return hypervolume_set1 - hypervolume_set2;
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}
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};
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#endif /*MOEOHYPERVOLUMEMETRIC_H_*/
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