defaultPartialOrderedEliminationSequenceStrategy.h

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/***************************************************************************
 *   Copyright (C) 2005 by Christophe GONZALES and Pierre-Henri WUILLEMIN  *
 *   {prenom.nom}_at_lip6.fr                                               *
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 *   it under the terms of the GNU General Public License as published by  *
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#ifndef GUM_DEFAULT_PARTIAL_ORDERED_ELIMINATION_SEQUENCE_STRATEGY_H
#define GUM_DEFAULT_PARTIAL_ORDERED_ELIMINATION_SEQUENCE_STRATEGY_H

#include <agrum/core/priorityQueue.h>
#include <agrum/graphs/algorithms/simplicialSet.h>
#include <agrum/graphs/algorithms/triangulations/eliminationStrategies/partialOrderedEliminationSequenceStrategy.h>
#include <agrum/graphs/graphElements.h>

namespace gum {

  class DefaultPartialOrderedEliminationSequenceStrategy
      : public PartialOrderedEliminationSequenceStrategy {
    public:
    // ############################################################################
    // ############################################################################


    DefaultPartialOrderedEliminationSequenceStrategy(
       double theRatio = GUM_QUASI_RATIO,
       double theThreshold = GUM_WEIGHT_THRESHOLD);


    DefaultPartialOrderedEliminationSequenceStrategy(
       UndiGraph*                  graph,
       const NodeProperty< Size >* dom_sizes,
       const List< NodeSet >*      subsets,
       double                      ratio = GUM_QUASI_RATIO,
       double                      threshold = GUM_WEIGHT_THRESHOLD);


    DefaultPartialOrderedEliminationSequenceStrategy(
       const DefaultPartialOrderedEliminationSequenceStrategy& from);

    DefaultPartialOrderedEliminationSequenceStrategy(
       DefaultPartialOrderedEliminationSequenceStrategy&& from);

    virtual ~DefaultPartialOrderedEliminationSequenceStrategy();

    virtual DefaultPartialOrderedEliminationSequenceStrategy*
       newFactory() const final;


    virtual DefaultPartialOrderedEliminationSequenceStrategy*
       copyFactory() const final;



    // ############################################################################
    // ############################################################################


    virtual bool setGraph(UndiGraph*                  graph,
                          const NodeProperty< Size >* dom_sizes) final;

    virtual void clear() final;


    virtual NodeId nextNodeToEliminate() final;

    virtual void askFillIns(bool do_it) final;

    virtual bool providesFillIns() const final;

    virtual bool providesGraphUpdate() const final;


    virtual void eliminationUpdate(const NodeId node) final;

    virtual const EdgeSet& fillIns() final;


    private:
    NodeProperty< double > __log_weights;

    SimplicialSet* __simplicial_set{nullptr};

    double __simplicial_ratio;

    double __simplicial_threshold;

    bool __provide_fill_ins{false};



    NodeId __nodeToEliminate(const PriorityQueue< NodeId, double >& possibleNodes);

    void __createSimplicialSet();
  };

} /* namespace gum */

#endif /* GUM_DEFAULT_PARTIAL_ORDERED_ELIMINATION_SEQUENCE_STRATEGY_H */