/****************************************************************************
 *   This file is part of the aGrUM/pyAgrum library.                        *
 *                                                                          *
 *   Copyright (c) 2005-2026 by                                             *
 *       - Pierre-Henri WUILLEMIN(_at_LIP6)                                 *
 *       - Christophe GONZALES(_at_AMU)                                     *
 *                                                                          *
 *   The aGrUM/pyAgrum library is free software; you can redistribute it    *
 *   and/or modify it under the terms of either :                           *
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 *    - the GNU Lesser General Public License as published by               *
 *      the Free Software Foundation, either version 3 of the License,      *
 *      or (at your option) any later version,                              *
 *    - the MIT license (MIT),                                              *
 *    - or both in dual license, as here.                                   *
 *                                                                          *
 *   (see https://agrum.gitlab.io/articles/dual-licenses-lgplv3mit.html)    *
 *                                                                          *
 *   This aGrUM/pyAgrum library is distributed in the hope that it will be  *
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 *   See LICENCES for more details.                                         *
 *                                                                          *
 *   SPDX-FileCopyrightText: Copyright 2005-2026                            *
 *       - Pierre-Henri WUILLEMIN(_at_LIP6)                                 *
 *       - Christophe GONZALES(_at_AMU)                                     *
 *   SPDX-License-Identifier: LGPL-3.0-or-later OR MIT                      *
 *                                                                          *
 *   Contact  : info_at_agrum_dot_org                                       *
 *   homepage : http://agrum.gitlab.io                                      *
 *   gitlab   : https://gitlab.com/agrumery/agrum                           *
 *                                                                          *
 ****************************************************************************/


/**
 * @file
 * @brief the type of algorithm to use to perform relevant reasoning in
 * Bayes net inference
 *
 * @author Christophe GONZALES(_at_AMU) and Pierre-Henri WUILLEMIN(_at_LIP6)
 */
#ifndef GUM_RELEVANT_TENSOR_FINDER_TYPE_H
#define GUM_RELEVANT_TENSOR_FINDER_TYPE_H

namespace gum {


  /** @brief type of algorithm for determining the relevant tensors for
   * combinations using some d-separation analysis
   *
   * When constructing messages from one clique to its neighbor, we can
   * exploit d-separation to determine that some tensors are irrelevant for
   * the message computation. So we can discard them and, thereby, speed-up
   * the computations.
   */
  enum class RelevantTensorsFinderType {
    FIND_ALL,                   // do not perform d-separation analysis
    DSEP_BAYESBALL_NODES,       // BayesBall requisite nodes -> tensors
    DSEP_BAYESBALL_TENSORS,     // BayesBall requisite tensors (directly)
    DSEP_KOLLER_FRIEDMAN_2009   // Koller & Friedman 2009 requisite tensors
  };

}   // namespace gum


#endif   // GUM_RELEVANT_TENSOR_FINDER_TYPE_H
