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Added a field for saving the fitness of the solution (useful for monitoring)

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LPTK 2013-07-18 14:13:35 +02:00
commit 6548a0e223
1 changed files with 108 additions and 91 deletions
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175
mo/src/algo/moLocalSearch.h
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@ -47,99 +47,116 @@
template<class Neighbor>
class moLocalSearch: public eoMonOp<typename Neighbor::EOT> {
public:
typedef moNeighborhood<Neighbor> Neighborhood;
typedef moNeighborhoodExplorer<Neighbor> NeighborhoodExplorer;
typedef typename Neighbor::EOT EOT;
typedef moNeighborhood<Neighbor> Neighborhood;
typedef moNeighborhoodExplorer<Neighbor> NeighborhoodExplorer;
typedef typename Neighbor::EOT EOT;
/**
* Constructor of a moLocalSearch
* @param _searchExpl a neighborhood explorer
* @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), currentSolutionFitness(0)
{ }
/**
* Run the local search on a solution
* @param _solution the related solution
*/
virtual bool operator()(EOT & _solution) {
/**
* Constructor of a moLocalSearch
* @param _searchExpl a neighborhood explorer
* @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) {
}
;
if (_solution.invalid())
fullEval(_solution);
// initialization of the parameter of the search (for example fill empty the tabu list)
searchExplorer.initParam(_solution);
// initialization of the external continuator (for example the time, or the number of generations)
cont->init(_solution);
bool b;
do
{
currentSolutionFitness = _solution.fitness();
// explore the neighborhood of the solution
searchExplorer(_solution);
// if a solution in the neighborhood can be accepted
if (searchExplorer.accept(_solution)) {
searchExplorer.move(_solution);
searchExplorer.moveApplied(true);
} else
searchExplorer.moveApplied(false);
/**
* Run the local search on a solution
* @param _solution the related solution
*/
virtual bool operator()(EOT & _solution) {
// update the parameter of the search (for ex. Temperature of the SA)
searchExplorer.updateParam(_solution);
if (_solution.invalid())
fullEval(_solution);
b = (*cont)(_solution);
}
while (b && searchExplorer.isContinue(_solution));
// initialization of the parameter of the search (for example fill empty the tabu list)
searchExplorer.initParam(_solution);
searchExplorer.terminate(_solution);
// initialization of the external continuator (for example the time, or the number of generations)
cont->init(_solution);
cont->lastCall(_solution);
bool b;
do {
// explore the neighborhood of the solution
searchExplorer(_solution);
// if a solution in the neighborhood can be accepted
if (searchExplorer.accept(_solution)) {
searchExplorer.move(_solution);
searchExplorer.moveApplied(true);
} else
searchExplorer.moveApplied(false);
return true;
}
// update the parameter of the search (for ex. Temperature of the SA)
searchExplorer.updateParam(_solution);
/**
* Set an external continuator
* @param _cont the external continuator
*/
void setContinuator(moContinuator<Neighbor> & _cont) {
cont = &_cont;
}
b = (*cont)(_solution);
} while (b && searchExplorer.isContinue(_solution));
/**
* external continuator object
*
* @overload
* @return the external continuator
*/
moContinuator<Neighbor>* getContinuator() const {
return cont;
}
searchExplorer.terminate(_solution);
/**
* to get the neighborhood explorer
*
* @overload
* @return the neighborhood explorer
*/
moNeighborhoodExplorer<Neighbor> & getNeighborhoodExplorer() const {
return searchExplorer;
}
cont->lastCall(_solution);
return true;
}
;
/**
* Set an external continuator
* @param _cont the external continuator
*/
void setContinuator(moContinuator<Neighbor> & _cont) {
cont = &_cont;
}
/**
* external continuator object
*
* @overload
* @return the external continuator
*/
moContinuator<Neighbor>* getContinuator() const {
return cont;
}
/**
* to get the neighborhood explorer
*
* @overload
* @return the neighborhood explorer
*/
moNeighborhoodExplorer<Neighbor> & getNeighborhoodExplorer() const {
return searchExplorer;
}
/**
* Useful for monitoring with anb eoGetterUpdater
* @return the fitness of the last computed solution
*/
double getCurrentSolutionFitness() const {
return currentSolutionFitness;
}
protected:
// make the exploration of the neighborhood according to a local search heuristic
moNeighborhoodExplorer<Neighbor>& searchExplorer;
// make the exploration of the neighborhood according to a local search heuristic
moNeighborhoodExplorer<Neighbor>& searchExplorer;
// external continuator
moContinuator<Neighbor> * cont;
// external continuator
moContinuator<Neighbor> * cont;
//full evaluation function
eoEvalFunc<EOT>& fullEval;
//full evaluation function
eoEvalFunc<EOT>& fullEval;
private:
// fitness of the last computed solution
double currentSolutionFitness;
};
#endif