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git-svn-id: svn://scm.gforge.inria.fr/svnroot/paradiseo@1983 331e1502-861f-0410-8da2-ba01fb791d7f

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boufaras 2010-11-02 10:42:40 +00:00
commit 261fb95ed1
1 changed files with 111 additions and 110 deletions
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35
trunk/paradiseo-mo/src/algo/moLocalSearch.h
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@ -30,7 +30,7 @@
ParadisEO WebSite : http://paradiseo.gforge.inria.fr
Contact: paradiseo-help@lists.gforge.inria.fr
*/
*/
#ifndef _moLocalSearch_h
#define _moLocalSearch_h
@ -45,12 +45,11 @@
* the main algorithm of the local search
*/
template<class Neighbor>
class moLocalSearch: public eoMonOp<typename Neighbor::EOT>
{
class moLocalSearch: public eoMonOp<typename Neighbor::EOT> {
public:
typedef moNeighborhood<Neighbor> Neighborhood;
typedef moNeighborhoodExplorer<Neighbor> NeighborhoodExplorer;
typedef typename Neighbor::EOT EOT ;
typedef typename Neighbor::EOT EOT;
/**
* Constructor of a moLocalSearch
@ -58,13 +57,17 @@ public:
* @param _cont an external continuator (can be a checkpoint!)
* @param _fullEval a full evaluation function
*/
moLocalSearch(NeighborhoodExplorer& _searchExpl, moContinuator<Neighbor> & _cont, eoEvalFunc<EOT>& _fullEval) : searchExplorer(_searchExpl), cont(&_cont), fullEval(_fullEval) { } ;
moLocalSearch(NeighborhoodExplorer& _searchExpl,
moContinuator<Neighbor> & _cont, eoEvalFunc<EOT>& _fullEval) :
searchExplorer(_searchExpl), cont(&_cont), fullEval(_fullEval) {
}
;
/**
* Run the local search on a solution
* @param _solution the related solution
*/
virtual bool operator() (EOT & _solution) {
virtual bool operator()(EOT & _solution) {
if (_solution.invalid())
fullEval(_solution);
@ -76,7 +79,6 @@ public:
cont->init(_solution);
bool b;
do {
// explore the neighborhood of the solution
searchExplorer(_solution);
@ -84,29 +86,28 @@ public:
if (searchExplorer.accept(_solution)) {
searchExplorer.move(_solution);
searchExplorer.moveApplied(true);
}
else
} else
searchExplorer.moveApplied(false);
// update the parameter of the search (for ex. Temperature of the SA)
searchExplorer.updateParam(_solution);
b=(*cont)(_solution);
} while (b && searchExplorer.isContinue(_solution));
b = (*cont)(_solution);
}while (b && searchExplorer.isContinue(_solution));
searchExplorer.terminate(_solution);
cont->lastCall(_solution);
return true;
};
}
;
/**
* Set an external continuator
* @param _cont the external continuator
*/
void setContinuator(moContinuator<Neighbor> & _cont) {
cont = &_cont ;
cont = &_cont;
}
/**
@ -116,15 +117,15 @@ public:
* @return the external continuator
*/
moContinuator<Neighbor>* getContinuator() const {
return cont ;
return cont;
}
protected:
// make the exploration of the neighborhood according to a local search heuristic
moNeighborhoodExplorer<Neighbor>& searchExplorer ;
moNeighborhoodExplorer<Neighbor>& searchExplorer;
// external continuator
moContinuator<Neighbor> * cont ;
moContinuator<Neighbor> * cont;
//full evaluation function
eoEvalFunc<EOT>& fullEval;