adaptiveRMaxPlaner.h

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 *       - Christophe GONZALES(_at_AMU)                                     *
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 *       - Pierre-Henri WUILLEMIN(_at_LIP6)                                 *
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// =========================================================================
#ifndef GUM_ADAPTIVE_RMAX_PLANER_H
#define GUM_ADAPTIVE_RMAX_PLANER_H
// =========================================================================
#include <agrum/FMDP/learning/fmdpLearner.h>
#include <agrum/FMDP/planning/structuredPlaner.h>
#include <agrum/FMDP/SDyna/Strategies/IDecisionStrategy.h>
#include <agrum/FMDP/simulation/statesCounter.h>
 
// =========================================================================
 
namespace gum {

  class AdaptiveRMaxPlaner: public StructuredPlaner< double >, public IDecisionStrategy {
    // ###################################################################
    // ###################################################################
 
    public:
    // ==========================================================================
    // ==========================================================================
    static AdaptiveRMaxPlaner* ReducedAndOrderedInstance(const ILearningStrategy* learner,
                                                         double discountFactor = 0.9,
                                                         double epsilon        = 0.00001,
                                                         bool   verbose        = true);
 
    // ==========================================================================
    // ==========================================================================
    static AdaptiveRMaxPlaner* TreeInstance(const ILearningStrategy* learner,
                                            double                   discountFactor = 0.9,
                                            double                   epsilon        = 0.00001,
                                            bool                     verbose        = true);

 
    // ###################################################################
    // ###################################################################
 
    private:
    // ==========================================================================
    // ==========================================================================
    AdaptiveRMaxPlaner(IOperatorStrategy< double >* opi,
                       double                       discountFactor,
                       double                       epsilon,
                       const ILearningStrategy*     learner,
                       bool                         verbose);
 
    // ==========================================================================
    // ==========================================================================
 
    public:
    ~AdaptiveRMaxPlaner() override;

 
 
    // ###################################################################
    // ###################################################################
 
    public:
    // ==========================================================================
    // ==========================================================================
    void initialize(const FMDP< double >* fmdp) override;
 
 
    // ==========================================================================
    // ==========================================================================
    void makePlanning(Idx nbStep = 1000000) override;

 
 
    // ###################################################################
    // ###################################################################
 
    protected:
    // ==========================================================================
    // ==========================================================================
    void initVFunction_() override;
 
    // ==========================================================================
    // ==========================================================================
    MultiDimFunctionGraph< double >* valueIteration_() override;

 
 
    // ###################################################################
    // ###################################################################
 
    protected:
    // ==========================================================================
    // ==========================================================================
    void evalPolicy_() override;

 
    private:
    void _makeRMaxFunctionGraphs_();
 
    std::pair< NodeId, NodeId > _visitLearner_(const IVisitableGraphLearner*,
                                               NodeId currentNodeId,
                                               MultiDimFunctionGraph< double >*,
                                               MultiDimFunctionGraph< double >*);
    void                        _clearTables_();
 
    private:
    HashTable< Idx, MultiDimFunctionGraph< double >* > _actionsRMaxTable_;
    HashTable< Idx, MultiDimFunctionGraph< double >* > _actionsBoolTable_;
    const ILearningStrategy*                           _fmdpLearner_;
 
    double _rThreshold_;
    double _rmax_;
 
 
    // ###################################################################
    // ###################################################################
 
    public:
    void checkState(const Instantiation& newState, Idx actionId) override;
 
    private:
    HashTable< Idx, StatesCounter* > _counterTable_;
    HashTable< Idx, bool >           _initializedTable_;
 
    bool _initialized_;
  };
 
} /* namespace gum */
 
#ifndef GUM_NO_INLINE
#  include <agrum/FMDP/planning/adaptiveRMaxPlaner_inl.h>
#endif   // GUM_NO_INLINE
#endif   // GUM_ADAPTIVE_RMAX_PLANER_H