optimizers/tabu.h

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/*PGR-GNU*****************************************************************
 
FILE: optimize.h
 
Copyright (c) 2015 pgRouting developers
Mail: [email protected]
 
------
 
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
 
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
 
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 
 ********************************************************************PGR-GNU*/
 
#ifndef INCLUDE_OPTIMIZERS_TABU_H_
#define INCLUDE_OPTIMIZERS_TABU_H_
#pragma once
 
#include "problem/solution.h"
#include "optimizers/tabu_list.h"
 
namespace vrprouting {
namespace optimizers {
namespace tabu {
 
class Optimize : public problem::Solution {
 public:
    Optimize(const problem::Solution& solution, size_t times, bool stop_on_all_served, bool);
 
    problem::Solution best_solution;
 
 private:
    TabuList tabu_list;
 
    void tabu_search();
 
    void sort_by_size(bool asc);
 
    void set_tabu_list_length();
 
    void delete_empty_truck();
 
    bool move_2_real();
 
    bool single_pair_insertion(bool intensify, bool diversify);
 
    bool swap_between_routes(bool intensify, bool diversify);
 
    void save_if_best();
 
    size_t m_max_cycles;
 
    bool m_stop_on_all_served;
 
    bool m_optimize;
 
    size_t m_standard_limit = 30;
 
    void intensify();
 
    bool diversify();
 
    Identifiers<size_t> m_unassignedOrders;
};
 
}  //  namespace tabu
}  //  namespace optimizers
}  //  namespace vrprouting
 
#endif  // INCLUDE_OPTIMIZERS_TABU_H_