225ed64ac5
git-svn-id: svn://scm.gforge.inria.fr/svnroot/paradiseo@377 331e1502-861f-0410-8da2-ba01fb791d7f
109 lines
3.3 KiB
C++
Executable file
109 lines
3.3 KiB
C++
Executable file
// -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-
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//-----------------------------------------------------------------------------
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// moeoReferencePointIndicatorBasedFitnessAssignment.h
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// (c) OPAC Team (LIFL), Dolphin Project (INRIA), 2007
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/*
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This library...
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Contact: paradiseo-help@lists.gforge.inria.fr, http://paradiseo.gforge.inria.fr
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*/
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//-----------------------------------------------------------------------------
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#ifndef MOEOREFERENCEPOINTINDICATORBASEDFITNESSASSIGNMENT_H_
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#define MOEOREFERENCEPOINTINDICATORBASEDFITNESSASSIGNMENT_H_
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#include <math.h>
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#include <eoPop.h>
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#include <fitness/moeoFitnessAssignment.h>
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#include <metric/moeoNormalizedSolutionVsSolutionBinaryMetric.h>
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/**
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* Fitness assignment sheme based a Reference Point and a Quality Indicator.
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*/
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template < class MOEOT >
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class moeoReferencePointIndicatorBasedFitnessAssignment : public moeoFitnessAssignment < MOEOT >
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{
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public:
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/** The type of objective vector */
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typedef typename MOEOT::ObjectiveVector ObjectiveVector;
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/**
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* Ctor
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* @param _refPoint the reference point
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* @param _metric the quality indicator
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*/
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moeoReferencePointIndicatorBasedFitnessAssignment (ObjectiveVector & _refPoint, moeoNormalizedSolutionVsSolutionBinaryMetric < ObjectiveVector, double > & _metric) :
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refPoint(_refPoint), metric(_metric)
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{}
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/**
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* Sets the fitness values for every solution contained in the population _pop
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* @param _pop the population
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*/
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void operator()(eoPop < MOEOT > & _pop)
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{
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// 1 - setting of the bounds
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setup(_pop);
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// 2 - setting fitnesses
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setFitnesses(_pop);
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}
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/**
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* Updates the fitness values of the whole population _pop by taking the deletion of the objective vector _objVec into account.
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* @param _pop the population
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* @param _objVec the objective vector
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*/
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void updateByDeleting(eoPop < MOEOT > & _pop, ObjectiveVector & _objVec)
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{
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// nothing to do ;-)
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}
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protected:
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/** the reference point */
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ObjectiveVector & refPoint;
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/** the quality indicator */
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moeoNormalizedSolutionVsSolutionBinaryMetric < ObjectiveVector, double > & metric;
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/**
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* Sets the bounds for every objective using the min and the max value for every objective vector of _pop (and the reference point)
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* @param _pop the population
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*/
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void setup(const eoPop < MOEOT > & _pop)
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{
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double min, max;
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for (unsigned int i=0; i<ObjectiveVector::Traits::nObjectives(); i++)
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{
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min = refPoint[i];
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max = refPoint[i];
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for (unsigned int j=0; j<_pop.size(); j++)
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{
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min = std::min(min, _pop[j].objectiveVector()[i]);
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max = std::max(max, _pop[j].objectiveVector()[i]);
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}
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// setting of the bounds for the objective i
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metric.setup(min, max, i);
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}
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}
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/**
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* Sets the fitness of every individual contained in the population _pop
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* @param _pop the population
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*/
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void setFitnesses(eoPop < MOEOT > & _pop)
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{
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for (unsigned int i=0; i<_pop.size(); i++)
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{
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_pop[i].fitness(- metric(_pop[i].objectiveVector(), refPoint) );
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}
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}
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};
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#endif /*MOEOREFERENCEPOINTINDICATORBASEDFITNESSASSIGNMENT_H_*/
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