196 lines
7.1 KiB
C++
196 lines
7.1 KiB
C++
/*
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* Open BEAGLE
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* Copyright (C) 2001-2007 by Christian Gagne and Marc Parizeau
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*
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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; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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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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*
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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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*
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* Contact:
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* Laboratoire de Vision et Systemes Numeriques
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* Departement de genie electrique et de genie informatique
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* Universite Laval, Quebec, Canada, G1K 7P4
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* http://vision.gel.ulaval.ca
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*
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*/
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/*!
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* \file beagle/src/FitnessMultiObj.cpp
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* \brief Source code of class FitnessMultiObj.
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* \author Christian Gagne
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* \author Marc Parizeau
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* $Revision: 1.13.2.1 $
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* $Date: 2007/05/09 01:51:19 $
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*/
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#include "beagle/Beagle.hpp"
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using namespace Beagle;
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/*!
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* \brief Construct a multiobjective fitness object.
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* \brief inSize Size of the multiobjective fitness value.
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* \brief inValue Default initial value of the multiobjective fitness measures.
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*/
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FitnessMultiObj::FitnessMultiObj(unsigned int inSize, float inValue) :
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Fitness((inSize != 0)),
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std::vector< float,BEAGLE_STLALLOCATOR<float> >(inSize, inValue)
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{ }
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/*!
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* \brief Construct a valid multiobjective fitness object.
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* \param inFitness Value of the fitness.
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*/
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FitnessMultiObj::FitnessMultiObj(const std::vector< float,BEAGLE_STLALLOCATOR<float> >& inFitness) :
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Fitness(true),
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std::vector< float,BEAGLE_STLALLOCATOR<float> >(inFitness)
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{ }
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/*!
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* \brief Return scaling factors, 1.0 for all objectives by default.
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* \return Scaling factor of the dimensions of the objective space.
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*/
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std::vector< float,BEAGLE_STLALLOCATOR<float> > FitnessMultiObj::getScalingFactors() const
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{
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Beagle_StackTraceBeginM();
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return std::vector< float,BEAGLE_STLALLOCATOR<float> >(size(), 1.0);
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Beagle_StackTraceEndM("std::vector< float,BEAGLE_STLALLOCATOR<float> > FitnessMultiObj::getScalingFactors() const");
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}
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/*!
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* \brief Test whether the actual multiobjective fitness is Pareto-dominated.
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* \param inRightFitness Second multiobjective fitness to test domination on.
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* \return True if the actual multiobjective measure is dominated, false if not.
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*/
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bool FitnessMultiObj::isDominated(const FitnessMultiObj& inRightFitness) const
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{
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Beagle_StackTraceBeginM();
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if(isValid() != inRightFitness.isValid()) return false;
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if((isValid()==false) && (inRightFitness.isValid()==false)) return false;
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size_type lMinSize = minOf(size(), inRightFitness.size());
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if(lMinSize == 0) return false;
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bool lNotEqual = false;
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for(size_type i=0; i<lMinSize; ++i) {
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if((*this)[i] > inRightFitness[i]) return false;
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else if((*this)[i] < inRightFitness[i]) lNotEqual = true;
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}
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return lNotEqual;
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Beagle_StackTraceEndM("bool FitnessMultiObj::isDominated(const FitnessMultiObj& inRightFitness) const");
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}
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/*!
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* \brief Test equality of two multiobjective fitness measures.
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* \param inRightObj Right measure to compare.
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* \return True if the fitness are equal, false if not.
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*/
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bool FitnessMultiObj::isEqual(const Object& inRightObj) const
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{
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Beagle_StackTraceBeginM();
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const FitnessMultiObj& lRightFitness = castObjectT<const FitnessMultiObj&>(inRightObj);
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if(isValid() != lRightFitness.isValid()) return false;
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if((isValid()==false) && (lRightFitness.isValid()==false)) return true;
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if(size() != lRightFitness.size()) return false;
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for(size_type i=0; i<size(); ++i) {
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if((*this)[i] != lRightFitness[i]) return false;
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}
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return true;
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Beagle_StackTraceEndM("bool FitnessMultiObj::isEqual(const Object& inRightObj) const");
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}
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/*!
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* \brief Test order of two multiobjective fitness measures, from first to last objective.
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* \param inRightObj Right measure to compare.
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* \return True if the actual fitness is less from the right one, false if not.
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*/
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bool FitnessMultiObj::isLess(const Object& inRightObj) const
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{
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Beagle_StackTraceBeginM();
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const FitnessMultiObj& lRightFitness = castObjectT<const FitnessMultiObj&>(inRightObj);
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if(isValid() != lRightFitness.isValid()) return false;
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if((isValid()==false) && (lRightFitness.isValid()==false)) return false;
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size_type lMinSize = minOf(size(), lRightFitness.size());
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for(size_type i=0; i<lMinSize; ++i) {
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if((*this)[i] < lRightFitness[i]) return true;
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else if((*this)[i] > lRightFitness[i]) return false;
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}
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return false;
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Beagle_StackTraceEndM("bool FitnessMultiObj::isLess(const Object& inRightObj) const");
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}
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/*!
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* \brief Read a multiobjective fitness from a XML subtree.
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* \param inIter XML iterator to use to read the fitness value.
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*/
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void FitnessMultiObj::read(PACC::XML::ConstIterator inIter)
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{
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Beagle_StackTraceBeginM();
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if((inIter->getType()!=PACC::XML::eData) || (inIter->getValue()!="Fitness"))
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throw Beagle_IOExceptionNodeM(*inIter, "tag <Fitness> expected!");
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string lValid = inIter->getAttribute("valid").c_str();
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if(lValid.empty() || (lValid == "yes")) {
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string lType = inIter->getAttribute("type").c_str();
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if(lType != "multiobj")
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throw Beagle_IOExceptionNodeM(*inIter, "fitness type mismatch!");
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clear();
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for(PACC::XML::ConstIterator lChild=inIter->getFirstChild(); lChild; ++lChild) {
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if((lChild->getType()!=PACC::XML::eData) || (lChild->getValue()!="Obj")) continue;
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PACC::XML::ConstIterator lChild2 = lChild->getFirstChild();
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if(!lChild2) throw Beagle_IOExceptionNodeM(*lChild, "needed a float value in the <Obj> tag!");
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if(lChild2->getType() != PACC::XML::eString)
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throw Beagle_IOExceptionNodeM(*lChild2, "needed a float value in the <Obj> tag!");
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push_back(str2dbl(lChild2->getValue().c_str()));
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}
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setValid();
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}
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else if(lValid == "no") setInvalid();
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else throw Beagle_IOExceptionNodeM(*inIter, "bad fitness validity value!");
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Beagle_StackTraceEndM("void FitnessMultiObj::read(PACC::XML::ConstIterator inIter)");
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}
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/*!
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* \brief Write a multiobjective fitness into an XML streamer.
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* \param ioStreamer XML streamer to use to write the fitness value.
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* \param inIndent Whether XML output should be indented.
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*/
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void FitnessMultiObj::write(PACC::XML::Streamer& ioStreamer, bool inIndent) const
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{
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Beagle_StackTraceBeginM();
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ioStreamer.openTag("Fitness", inIndent);
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ioStreamer.insertAttribute("type", "multiobj");
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if(isValid()) {
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ioStreamer.insertAttribute("size", uint2str(size()));
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for(size_type i=0; i<size(); ++i) {
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ioStreamer.openTag("Obj", false);
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ioStreamer.insertStringContent(dbl2str((*this)[i]).c_str());
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ioStreamer.closeTag();
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}
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}
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else ioStreamer.insertAttribute("valid", "no");
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ioStreamer.closeTag();
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Beagle_StackTraceEndM("void FitnessMultiObj::write(PACC::XML::Streamer& ioStreamer, bool inIndent) const");
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}
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