iti.h

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 *   Copyright (c) 2005-2025 by                                             *
 *       - Pierre-Henri WUILLEMIN(_at_LIP6)                                 *
 *       - Christophe GONZALES(_at_AMU)                                     *
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 *       - Pierre-Henri WUILLEMIN(_at_LIP6)                                 *
 *       - Christophe GONZALES(_at_AMU)                                     *
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// =========================================================================
#ifndef GUM_ITI_H
#define GUM_ITI_H
// =========================================================================
#include <agrum/base/core/multiPriorityQueue.h>
// =========================================================================
// =========================================================================
#include <agrum/FMDP/learning/datastructure/incrementalGraphLearner.h>
 
// =========================================================================
// =========================================================================
 
namespace gum {

 
  template < TESTNAME AttributeSelection, bool isScalar = false >
  class ITI: public IncrementalGraphLearner< AttributeSelection, isScalar > {
    public:
    // ###################################################################
    // ###################################################################
 
    // ==========================================================================
    // ==========================================================================
    ITI(MultiDimFunctionGraph< double >* target,
        double                           attributeSelectionThreshold,
        gum::VariableSet                 attributeListe,
        const DiscreteVariable*          learnedValue);
 
    // ==========================================================================
    // ==========================================================================
    ITI(MultiDimFunctionGraph< double >* target,
        double                           attributeSelectionThreshold,
        gum::VariableSet                 attributeListe);
 
    // ==========================================================================
    // ==========================================================================
    ~ITI() {
      GUM_DESTRUCTOR(ITI);
      ;
    }

 
    // ###################################################################
    // ###################################################################
 
    public:
    // ==========================================================================
    // ==========================================================================
    void addObservation(const Observation* obs);
 
    protected:
    // ==========================================================================
    // ==========================================================================
    void updateNodeWithObservation_(const Observation* newObs, NodeId currentNodeId);

 
    // ###################################################################
    // ###################################################################
 
    public:
    // ==========================================================================
    // ==========================================================================
    void updateGraph();
 
    protected:
    // ==========================================================================
    // ==========================================================================
    NodeId insertNode_(NodeDatabase< AttributeSelection, isScalar >* nDB,
                       const DiscreteVariable*                       boundVar);
 
    // ==========================================================================
    // ==========================================================================
    void chgNodeBoundVar_(NodeId chgedNodeId, const DiscreteVariable* desiredVar);
 
    // ==========================================================================
    // ==========================================================================
    void removeNode_(NodeId removedNodeId);

 
    public:
    // ###################################################################
    // ###################################################################
 
    // ==========================================================================
    // ==========================================================================
    void updateFunctionGraph();
 
    private:
    // ==========================================================================
    // ==========================================================================
    NodeId _insertNodeInFunctionGraph_(NodeId src);
 
    // ==========================================================================
    // ==========================================================================
    NodeId _insertTerminalNode_(NodeId src) {
      return _insertTerminalNode_(src, Int2Type< isScalar >());
    }
 
    // ==========================================================================
    // ==========================================================================
    NodeId _insertTerminalNode_(NodeId src, Int2Type< true >);
 
    // ==========================================================================
    // ==========================================================================
    NodeId _insertTerminalNode_(NodeId src, Int2Type< false >);

 
 
    protected:
    // ==========================================================================
    // ==========================================================================
    void insertSetOfVars_(MultiDimFunctionGraph< double >* ret) {
      for (SetIteratorSafe< const DiscreteVariable* > varIter = this->setOfVars_.beginSafe();
           varIter != this->setOfVars_.endSafe();
           ++varIter)
        ret->add(**varIter);
    }
 
    private:
    HashTable< NodeId, bool > _staleTable_;

    Idx _nbTotalObservation_;

    double _attributeSelectionThreshold_;
  };
 
 
} /* namespace gum */
 
#include <agrum/FMDP/learning/datastructure/iti_tpl.h>
 
#endif   // GUM_ITI_H