merge ParadisEO-MOEO v-1.0

git-svn-id: svn://scm.gforge.inria.fr/svnroot/paradiseo@400 331e1502-861f-0410-8da2-ba01fb791d7f
2007-06-26 13:28:59 +00:00 · 2007-06-26 13:28:59 +00:00 · 8b7d5260fb
commit 8b7d5260fb
parent d46e17d10a
724 changed files with 63305 additions and 2757 deletions
--- a/trunk/paradiseo-moeo/src/replacement/moeoElitistReplacement.h
+++ b/trunk/paradiseo-moeo/src/replacement/moeoElitistReplacement.h
@ -0,0 +1,130 @@
+// -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-
+
+//-----------------------------------------------------------------------------
+// moeoElitistReplacement.h
+// (c) OPAC Team (LIFL), Dolphin Project (INRIA), 2007
+/*
+    This library...
+
+    Contact: paradiseo-help@lists.gforge.inria.fr, http://paradiseo.gforge.inria.fr
+ */
+//-----------------------------------------------------------------------------
+
+#ifndef MOEOELITISTREPLACEMENT_H_
+#define MOEOELITISTREPLACEMENT_H_
+
+#include <comparator/moeoComparator.h>
+#include <comparator/moeoFitnessThenDiversityComparator.h>
+#include <diversity/moeoDiversityAssignment.h>
+#include <diversity/moeoDummyDiversityAssignment.h>
+#include <fitness/moeoFitnessAssignment.h>
+#include <replacement/moeoReplacement.h>
+
+/**
+ * Elitist replacement strategy that consists in keeping the N best individuals.
+ */
+template < class MOEOT > class moeoElitistReplacement:public moeoReplacement < MOEOT >
+{
+public:
+
+    /**
+     * Full constructor.
+     * @param _fitnessAssignment the fitness assignment strategy
+     * @param _diversityAssignment the diversity assignment strategy
+     * @param _comparator the comparator (used to compare 2 individuals)
+     */
+    moeoElitistReplacement (moeoFitnessAssignment < MOEOT > & _fitnessAssignment, moeoDiversityAssignment < MOEOT > & _diversityAssignment, moeoComparator < MOEOT > & _comparator) :
+            fitnessAssignment (_fitnessAssignment), diversityAssignment (_diversityAssignment), comparator (_comparator)
+    {}
+
+
+    /**
+     * Constructor without comparator. A moeoFitThenDivComparator is used as default.
+     * @param _fitnessAssignment the fitness assignment strategy
+     * @param _diversityAssignment the diversity assignment strategy
+     */
+    moeoElitistReplacement (moeoFitnessAssignment < MOEOT > & _fitnessAssignment, moeoDiversityAssignment < MOEOT > & _diversityAssignment) :
+            fitnessAssignment (_fitnessAssignment), diversityAssignment (_diversityAssignment), comparator (defaultComparator)
+    {}
+
+
+    /**
+     * Constructor without moeoDiversityAssignement. A dummy diversity is used as default.
+     * @param _fitnessAssignment the fitness assignment strategy
+     * @param _comparator the comparator (used to compare 2 individuals)
+     */
+    moeoElitistReplacement (moeoFitnessAssignment < MOEOT > & _fitnessAssignment, moeoComparator < MOEOT > & _comparator) :
+            fitnessAssignment (_fitnessAssignment), diversityAssignment (defaultDiversity), comparator (_comparator)
+    {}
+
+
+    /**
+     * Constructor without moeoDiversityAssignement nor moeoComparator.
+     * A moeoFitThenDivComparator and a dummy diversity are used as default.
+     * @param _fitnessAssignment the fitness assignment strategy
+     */
+    moeoElitistReplacement (moeoFitnessAssignment < MOEOT > & _fitnessAssignment) :
+            fitnessAssignment (_fitnessAssignment), diversityAssignment (defaultDiversity), comparator (defaultComparator)
+    {}
+
+
+    /**
+     * Replaces the first population by adding the individuals of the second one, sorting with a moeoComparator and resizing the whole population obtained.
+        * @param _parents the population composed of the parents (the population you want to replace)
+        * @param _offspring the offspring population
+     */
+    void operator () (eoPop < MOEOT > &_parents, eoPop < MOEOT > &_offspring)
+    {
+        unsigned int sz = _parents.size ();
+        // merges offspring and parents into a global population
+        _parents.reserve (_parents.size () + _offspring.size ());
+        std::copy (_offspring.begin (), _offspring.end (), back_inserter (_parents));
+        // evaluates the fitness and the diversity of this global population
+        fitnessAssignment (_parents);
+        diversityAssignment (_parents);
+        // sorts the whole population according to the comparator
+        std::sort(_parents.begin(), _parents.end(), comparator);
+        // finally, resize this global population
+        _parents.resize (sz);
+        // and clear the offspring population
+        _offspring.clear ();
+    }
+
+
+protected:
+
+    /** the fitness assignment strategy */
+    moeoFitnessAssignment < MOEOT > & fitnessAssignment;
+    /** the diversity assignment strategy */
+    moeoDiversityAssignment < MOEOT > & diversityAssignment;
+    /** a dummy diversity assignment can be used as default */
+    moeoDummyDiversityAssignment < MOEOT > defaultDiversity;
+    /** a fitness then diversity comparator can be used as default */
+    moeoFitnessThenDiversityComparator < MOEOT > defaultComparator;
+    /** this object is used to compare solutions in order to sort the population */
+    class Cmp
+    {
+    public:
+        /**
+         * Ctor.
+         * @param _comp the comparator
+         */
+        Cmp(moeoComparator < MOEOT > & _comp) : comp(_comp)
+        {}
+        /**
+         * Returns true if _moeo1 is greater than _moeo2 according to the comparator
+         * _moeo1 the first individual
+         * _moeo2 the first individual
+         */
+        bool operator()(const MOEOT & _moeo1, const MOEOT & _moeo2)
+        {
+            return comp(_moeo2,_moeo1);
+        }
+    private:
+        /** the comparator */
+        moeoComparator < MOEOT > & comp;
+    } comparator;
+
+};
+
+#endif /*MOEOELITISTREPLACEMENT_H_ */