A diversified Tabu search approach for the open-pit mine production scheduling problem with metal uncertainty |
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Authors: | Amina Lamghari Roussos Dimitrakopoulos |
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Institution: | COSMO – Stochastic Mine Planning Laboratory, McGill University, FDA Building, 3450 University Street, Montreal, Quebec, Canada H3A 2A7 |
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Abstract: | This paper presents a metaheuristic solution approach based on Tabu search for the open-pit mine production scheduling problem with metal uncertainty. To search the feasible domain more extensively, two different diversification strategies are used to generate several initial solutions to be optimized by the Tabu search procedure. The first diversification strategy exploits a long-term memory of the search history. The second one relies on the variable neighborhood search method. Numerical results on realistic large-scale instances are provided to indicate the efficiency of the solution approach to produce very good solutions in relatively short computational times. |
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Keywords: | Scheduling Open-pit mining Uncertainty Metaheuristics Tabu search Diversification |
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