Modif sur les continuator + ILS

git-svn-id: svn://scm.gforge.inria.fr/svnroot/paradiseo@1781 331e1502-861f-0410-8da2-ba01fb791d7f
This commit is contained in:
jhumeau 2010-05-05 09:44:21 +00:00
commit f580837dde
8 changed files with 114 additions and 85 deletions

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@ -40,6 +40,7 @@ Contact: paradiseo-help@lists.gforge.inria.fr
#include <eval/moEval.h> #include <eval/moEval.h>
#include <eoEvalFunc.h> #include <eoEvalFunc.h>
/** /**
* Iterated Local Search * Iterated Local Search
*/ */
@ -52,7 +53,7 @@ public:
typedef moNeighborhood<Neighbor> Neighborhood ; typedef moNeighborhood<Neighbor> Neighborhood ;
/** /**
* Simple constructor for Iterated Local Search * Basic constructor for Iterated Local Search
* @param _ls the local search to iterates * @param _ls the local search to iterates
* @param _fullEval the full evaluation function * @param _fullEval the full evaluation function
* @param _op the operator used to perturb solution * @param _op the operator used to perturb solution
@ -70,7 +71,7 @@ public:
* @param _ls the local search to iterates * @param _ls the local search to iterates
* @param _fullEval the full evaluation function * @param _fullEval the full evaluation function
* @param _op the operator used to perturb solution * @param _op the operator used to perturb solution
* @param _nbIteration the time limit for search * @param _cont a continuator
*/ */
moILS(moLocalSearch<Neighbor>& _ls, eoEvalFunc<EOT>& _fullEval, eoMonOp<EOT>& _op, moContinuator<moDummyNeighbor<EOT> >& _cont): moILS(moLocalSearch<Neighbor>& _ls, eoEvalFunc<EOT>& _fullEval, eoMonOp<EOT>& _op, moContinuator<moDummyNeighbor<EOT> >& _cont):
moLocalSearch<moDummyNeighbor<EOT> >(explorer, _cont, _fullEval), moLocalSearch<moDummyNeighbor<EOT> >(explorer, _cont, _fullEval),
@ -79,7 +80,28 @@ public:
explorer(_ls, defaultPerturb, defaultAccept) explorer(_ls, defaultPerturb, defaultAccept)
{} {}
/**
* General constructor for Iterated Local Search
* @param _ls the local search to iterates
* @param _fullEval the full evaluation function
* @param _op the operator used to perturb solution
* @param _cont a continuator
* @param _perturb a perturbation operator
* @param _accept a acceptance criteria
*/
moILS(moLocalSearch<Neighbor>& _ls, eoEvalFunc<EOT>& _fullEval, eoMonOp<EOT>& _op, moContinuator<moDummyNeighbor<EOT> >& _cont, moMonOpPerturb<Neighbor>& _perturb, moAcceptanceCriterion<Neighbor>& _accept):
moLocalSearch<moDummyNeighbor<EOT> >(explorer, _cont, _fullEval),
iterCont(0),
defaultPerturb(dummyOp, _fullEval),
explorer(_ls, _perturb, _accept)
{}
private: private:
class dummmyMonOp: public eoMonOp<EOT>{
public:
bool operator()(EOT&){return false;}
}dummyOp;
moIterContinuator<moDummyNeighbor<EOT> > iterCont; moIterContinuator<moDummyNeighbor<EOT> > iterCont;
moMonOpPerturb<Neighbor> defaultPerturb; moMonOpPerturb<Neighbor> defaultPerturb;
moAlwaysAcceptCrit<Neighbor> defaultAccept; moAlwaysAcceptCrit<Neighbor> defaultAccept;

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@ -72,7 +72,7 @@ public:
// initialization of the external continuator (for example the time, or the number of generations) // initialization of the external continuator (for example the time, or the number of generations)
cont->init(_solution); cont->init(_solution);
bool b= (*cont)(_solution); bool b;
do { do {
// explore the neighborhood of the solution // explore the neighborhood of the solution

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@ -96,6 +96,13 @@ public :
* @param _sol the corresponding solution * @param _sol the corresponding solution
*/ */
virtual void init(EOT& _sol) { virtual void init(EOT& _sol) {
for (unsigned i = 0; i < stats.size(); ++i)
stats[i]->init(_sol);
counter=1;
for (unsigned int i = 0; i < monitors.size(); ++i)
(*monitors[i])();
for (unsigned i = 0; i < continuators.size(); ++i) for (unsigned i = 0; i < continuators.size(); ++i)
continuators[i]->init(_sol); continuators[i]->init(_sol);
} }

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@ -51,8 +51,13 @@ public:
*@return true if counter < maxIter *@return true if counter < maxIter
*/ */
virtual bool operator()(EOT & _solution) { virtual bool operator()(EOT & _solution) {
bool res;
cpt++; cpt++;
return (cpt < maxIter); res = (cpt < maxIter);
if(!res){
std::cout << "STOP in moIterContinuator: Reached maximum number of iterations [" << cpt << "/" << maxIter << "]" << std::endl;
}
return res;
} }
/** /**

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@ -54,6 +54,11 @@ public:
*/ */
virtual void lastCall(EOT &) {} virtual void lastCall(EOT &) {}
/**
* first call of a statistical operator
*/
virtual void init(EOT &){}
/** /**
* @return name of the class * @return name of the class
*/ */

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@ -66,6 +66,14 @@ public:
return true; return true;
} }
/**
* reset the start time
* @param _solution a solution
*/
virtual void init(EOT & _solution) {
start = time(NULL);
}
/** /**
* Class name * Class name

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@ -34,7 +34,6 @@ using namespace std;
//Neighbors and Neighborhoods //Neighbors and Neighborhoods
#include <problems/permutation/moShiftNeighbor.h> #include <problems/permutation/moShiftNeighbor.h>
#include <neighborhood/moRndWithReplNeighborhood.h>
#include <neighborhood/moOrderNeighborhood.h> #include <neighborhood/moOrderNeighborhood.h>
//Algorithm and its components //Algorithm and its components

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@ -2,6 +2,7 @@
/** testILS.cpp /** testILS.cpp
* *
* SV - 12/01/10 * SV - 12/01/10
* JH - 04/05/10
* *
*/ */
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
@ -23,38 +24,44 @@
using namespace std; using namespace std;
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
// fitness function //Representation and initializer
#include <eval/oneMaxEval.h>
#include <problems/bitString/moBitNeighbor.h>
#include <eoInt.h> #include <eoInt.h>
#include <neighborhood/moOrderNeighborhood.h> #include <eoInit.h>
#include <neighborhood/moRndWithoutReplNeighborhood.h> #include <eoScalarFitness.h>
#include <neighborhood/moDummyNeighbor.h>
// fitness function
#include <eval/queenEval.h>
#include <eval/moFullEvalByModif.h> #include <eval/moFullEvalByModif.h>
#include <eval/moFullEvalByCopy.h> #include <eval/moFullEvalByCopy.h>
#include <comparator/moNeighborComparator.h>
#include <comparator/moSolNeighborComparator.h> //Neighbors and Neighborhoods
#include <continuator/moTrueContinuator.h> #include <problems/permutation/moShiftNeighbor.h>
#include <algo/moLocalSearch.h> #include <neighborhood/moOrderNeighborhood.h>
#include <explorer/moSimpleHCexplorer.h>
#include <explorer/moILSexplorer.h> //Mutation
#include <eoSwapMutation.h>
//Algorithm and its components
#include <algo/moTS.h>
#include <algo/moILS.h>
//mo eval
#include <eval/moFullEvalByCopy.h>
#include <perturb/moMonOpPerturb.h> #include <perturb/moMonOpPerturb.h>
#include <perturb/moRestartPerturb.h> #include <perturb/moRestartPerturb.h>
#include <perturb/moNeighborhoodPerturb.h> #include <perturb/moNeighborhoodPerturb.h>
#include <acceptCrit/moAlwaysAcceptCrit.h> #include <acceptCrit/moAlwaysAcceptCrit.h>
#include <acceptCrit/moBetterAcceptCrit.h> #include <acceptCrit/moBetterAcceptCrit.h>
#include <continuator/moIterContinuator.h> #include <continuator/moIterContinuator.h>
// REPRESENTATION // REPRESENTATION
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
typedef eoBit<unsigned int> Indi; typedef eoInt<eoMinimizingFitness> Queen; //Permutation (Queen's problem representation)
typedef moBitNeighbor<unsigned int> Neighbor ; // incremental evaluation
typedef moOrderNeighborhood<Neighbor> Neighborhood ; typedef moShiftNeighbor<Queen> shiftNeighbor; //shift Neighbor
typedef moRndWithoutReplNeighborhood<Neighbor> Neighborhood2 ; typedef moOrderNeighborhood<shiftNeighbor> orderShiftNeighborhood; //order shift Neighborhood (Indexed)
typedef moSimpleHCexplorer<Neighborhood> NHE;
void main_function(int argc, char **argv) void main_function(int argc, char **argv)
{ {
@ -108,46 +115,49 @@ void main_function(int argc, char **argv)
/* ========================================================= /* =========================================================
* *
* Eval fitness function * Full evaluation fitness function
* *
* ========================================================= */ * ========================================================= */
oneMaxEval<Indi> eval; queenEval<Queen> fullEval;
//FuncNK<Indi> eval(vecSize, 2);
/* ========================================================= /* =========================================================
* *
* Initilisation of the solution * Initializer of a solution
* *
* ========================================================= */ * ========================================================= */
// a Indi random initializer eoInitPermutation<Queen> init(vecSize);
eoUniformGenerator<bool> uGen;
eoInitFixedLength<Indi> random(vecSize, uGen);
/* =========================================================
*
* Declare and init solutions
*
* ========================================================= */
Queen sol1;
Queen sol2;
Queen sol3;
//random initialization
init(sol1);
init(sol2);
init(sol3);
//evaluation
fullEval(sol1);
fullEval(sol2);
fullEval(sol3);
/* ========================================================= /* =========================================================
* *
* evaluation of a neighbor solution * evaluation of a neighbor solution
* *
* ========================================================= */ * ========================================================= */
moFullEvalByModif<Neighbor> fulleval(eval); moFullEvalByCopy<shiftNeighbor> shiftEval(fullEval);
//An eval by copy can be used instead of the eval by modif
//moFullEvalByCopy<Neighbor> fulleval(eval);
/* =========================================================
*
* Comparator of neighbors
*
* ========================================================= */
moNeighborComparator<Neighbor> comparator;
moSolNeighborComparator<Neighbor> solComparator;
/* ========================================================= /* =========================================================
* *
@ -155,67 +165,40 @@ void main_function(int argc, char **argv)
* *
* ========================================================= */ * ========================================================= */
Neighborhood neighborhood(vecSize); orderShiftNeighborhood orderShiftNH(pow(vecSize-1, 2));
Neighborhood2 neighborhood2(vecSize);
/* ========================================================= /* =========================================================
* *
* a neighborhood explorer solution * the local search algorithms
* *
* ========================================================= */ * ========================================================= */
moSimpleHCexplorer<Neighbor> explorer(neighborhood, fulleval, comparator, solComparator); //Basic Constructor of the Tabu Search
moTS<shiftNeighbor> ts(orderShiftNH, fullEval, shiftEval, 5, 7);
eoSwapMutation<Queen> mut;
//Basic Constructor of the Iterated Local Search
moILS<shiftNeighbor> localSearch1(ts, fullEval, mut, 3);
/* ========================================================= //Simple Constructor of the Iterated Local Search
* //Be carefull, template of the continuator must be a dummyNeighbor!!!
* the local search algorithm moIterContinuator<moDummyNeighbor<Queen> > cont(4);
* moILS<shiftNeighbor> localSearch2(ts, fullEval, mut, cont);
* ========================================================= */
moTrueContinuator<Neighbor> continuator;//always continue std::cout << "Iterated Local Search 1:" << std::endl;
std::cout << "--------------" << std::endl;
std::cout << "initial: " << sol1 << std::endl ;
localSearch1(sol1);
std::cout << "final: " << sol1 << std::endl << std::endl;
moLocalSearch< Neighbor > hc(explorer, continuator, eval); std::cout << "Iterated Local Search 2:" << std::endl;
std::cout << "--------------" << std::endl;
eoBitMutation<Indi> monOp(1.0/vecSize); std::cout << "initial: " << sol2 << std::endl ;
localSearch2(sol2);
moMonOpPerturb<Neighbor> perturb(monOp, eval); std::cout << "final: " << sol2 << std::endl << std::endl;
//moRestartPerturb<Neighbor> perturb(random, eval, 5);
//moNeighborhoodPerturb<Neighbor, Neighborhood2> perturb(neighborhood2, fulleval);
moSolComparator<Indi> comp;
//moAlwaysAcceptCrit<Neighbor> accept;
moBetterAcceptCrit<Neighbor> accept(comp);
moILSexplorer< Neighbor > explorerILS(hc, perturb, accept);
moIterContinuator<moDummyNeighbor<Indi> > continuatorILS(100);
moLocalSearch<moDummyNeighbor<Indi> >localSearch(explorerILS, continuatorILS, eval);
/* =========================================================
*
* execute the local search from random sollution
*
* ========================================================= */
Indi solution;
random(solution);
//Can be eval here, else it will be done at the beginning of the localSearch
//eval(solution);
std::cout << "initial: " << solution << std::endl ;
localSearch(solution);
std::cout << "final: " << solution << std::endl ;
} }