leastSquareTestPolicy.h

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#ifndef GUM_MULTI_DIM_FUNCTION_GRAPH_LEAST_SQUARE_TEST_POLICY_H
#define GUM_MULTI_DIM_FUNCTION_GRAPH_LEAST_SQUARE_TEST_POLICY_H
 
// ============================================================================
#include <agrum/FMDP/learning/core/contingencyTable.h>
#include <agrum/FMDP/learning/core/testPolicy/ITestPolicy.h>
// ============================================================================
#include <agrum/base/multidim/utils/FunctionGraphUtilities/link.h>
 
// ============================================================================
 
namespace gum {

  template < typename GUM_SCALAR >
  class LeastSquareTestPolicy: public ITestPolicy< GUM_SCALAR > {
    public:
    // ############################################################################
    // ############################################################################
 
    // ============================================================================
    // ============================================================================
    LeastSquareTestPolicy() : ITestPolicy< GUM_SCALAR >(), _sumO_(0.0), _score_(0) {
      GUM_CONSTRUCTOR(LeastSquareTestPolicy);
    }
 
    // ============================================================================
    // ============================================================================
    void* operator new(size_t s) { return SmallObjectAllocator::instance().allocate(s); }
 
    void operator delete(void* p) {
      SmallObjectAllocator::instance().deallocate(p, sizeof(LeastSquareTestPolicy));
    }
 
    // ============================================================================
    // ============================================================================
    virtual ~LeastSquareTestPolicy();
 
    // ############################################################################
    // ############################################################################
 
    // ============================================================================
    // ============================================================================
    void addObservation(Idx attr, GUM_SCALAR value);

 
 
    // ############################################################################
    // ############################################################################
 
    // ============================================================================
    // ============================================================================
    bool isTestRelevant() const { return (this->nbObservation() > 20); }

 
 
    // ############################################################################
    // ############################################################################
 
    // ============================================================================
    // ============================================================================
    void computeScore();
 
    // ============================================================================
    // ============================================================================
    double score();
 
    // ============================================================================
    // ============================================================================
    double secondaryscore() const;

 
 
    // ############################################################################
    // ############################################################################
 
    // ============================================================================
    // ============================================================================
    void add(const LeastSquareTestPolicy< GUM_SCALAR >& src);
 
    // ============================================================================
    // ============================================================================
    double sumValue() const { return _sumO_; }
 
    // ============================================================================
    // ============================================================================
    const HashTable< Idx, Idx >& nbObsTable() const { return _nbObsTable_; }
 
    // ============================================================================
    // ============================================================================
    const HashTable< Idx, double >& sumAttrTable() const { return _sumAttrTable_; }
 
    // ============================================================================
    // ============================================================================
    const HashTable< Idx, LinkedList< double >* >& obsTable() const { return _obsTable_; }
 
    private:
    double _sumO_;

    HashTable< Idx, Idx > _nbObsTable_;

    HashTable< Idx, double > _sumAttrTable_;

    HashTable< Idx, LinkedList< double >* > _obsTable_;

    double _score_;
  };
 
}   // End of namespace gum
 
#include <agrum/FMDP/learning/core/testPolicy/leastSquareTestPolicy_tpl.h>
 
#endif /* GUM_MULTI_DIM_FUNCTION_GRAPH_LEAST_SQUARE_TEST_POLICY_H */