diff --git a/trunk/paradiseo-mo/src/memory/moRndIndexedVectorTabuList.h b/trunk/paradiseo-mo/src/memory/moRndIndexedVectorTabuList.h new file mode 100644 index 000000000..0ef2e99e7 --- /dev/null +++ b/trunk/paradiseo-mo/src/memory/moRndIndexedVectorTabuList.h @@ -0,0 +1,79 @@ +/* + + Copyright (C) DOLPHIN Project-Team, INRIA Lille - Nord Europe, 2006-2010 + + Sebastien Verel + + This software is governed by the CeCILL license under French law and + abiding by the rules of distribution of free software. You can ue, + modify and/ or redistribute the software under the terms of the CeCILL + license as circulated by CEA, CNRS and INRIA at the following URL + "http://www.cecill.info". + + In this respect, the user's attention is drawn to the risks associated + with loading, using, modifying and/or developing or reproducing the + software by the user in light of its specific status of free software, + that may mean that it is complicated to manipulate, and that also + therefore means that it is reserved for developers and experienced + professionals having in-depth computer knowledge. Users are therefore + encouraged to load and test the software's suitability as regards their + requirements in conditions enabling the security of their systems and/or + data to be ensured and, more generally, to use and operate it in the + same conditions as regards security. + The fact that you are presently reading this means that you have had + knowledge of the CeCILL license and that you accept its terms. + + ParadisEO WebSite : http://paradiseo.gforge.inria.fr + Contact: paradiseo-help@lists.gforge.inria.fr +*/ + +#ifndef _moRndIndexedVectorTabuList_h +#define _moRndIndexedVectorTabuList_h + +#include + +/** + * Tabu List of indexed neighbors save in a vector + * each neighbor can not used during howlong + rnd(howlongRnd) iterations + * see paper: + * Zhipeng Lu, Fred Glover, Jin-Kao Hao. "A Hybrid Metaheuristic Approach to Solving the UBQP Problem". European Journal of Operational Research, 2010. + */ +template +class moRndIndexedVectorTabuList : public moIndexedVectorTabuList +{ +public: + typedef typename Neighbor::EOT EOT; + + //tabu list + using moIndexedVectorTabuList::tabuList; + //maximum size of the tabu list + using moIndexedVectorTabuList::maxSize; + //how many iteration a move is tabu + using moIndexedVectorTabuList::howlong; + + /** + * Constructor + * @param _maxSize maximum size of the tabu list + * @param _howlong how many minimal iteration a move is tabu + * @param _howlongRnd how many additional iterations a move is tabu (random between [0 , _howlongRnd [ ) + */ + moRndIndexedVectorTabuList(unsigned int _maxSize, unsigned int _howlong, unsigned int _howlongRnd) : moIndexedVectorTabuList(_maxSize, _howlong), howlongRnd(_howlongRnd) { + } + + /** + * add a new neighbor in the tabuList + * @param _sol unused solution + * @param _neighbor the current neighbor + */ + virtual void add(EOT & _sol, Neighbor & _neighbor) { + if (_neighbor.index() < maxSize) + tabuList[_neighbor.index()] = howlong + rng.uniform(howlongRnd) ; + } + + +protected: + // the random part of the forbidden time + unsigned int howlongRnd; +}; + +#endif