Search Results - "Martins, Alexandre X."

Variable neighborhood descent with iterated local search for routing and wavelength assignment by Martins, Alexandre X., Duhamel, Christophe, Mahey, Philippe, Saldanha, Rodney R., de Souza, Mauricio C.

“…In this work we treat the Routing and Wavelength Assignment (RWA) with focus on minimizing the number of wavelengths to route demand requests. Lightpaths are…”
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An Efficient Genetic Algorithm for the Design of Hub-and-Spoke Networks by Gomes, Bruno N., Martins, Alexandre X., de Camargo, Ricardo S., Ramirez, Jaime A.

“…We propose an efficient genetic algorithm (GA) for the design of hub-and-spoke networks with single allocation. The creation of the initial population is based…”
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Model-hierarchical column generation and heuristic for the routing and wavelength assignment problem by Duhamel, Christophe, Mahey, Philippe, Martins, Alexandre X., Saldanha, Rodney R., de Souza, Mauricio C.

“…The routing and wavelength assignment (RWA) problem typically occurs in wavelength division multiplexing optical networks. Given a number of available…”
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GRASP with hybrid heuristic-subproblem optimization for the multi-level capacitated minimum spanning tree problem by Martins, Alexandre X., de Souza, Mauricio C., Souza, Marcone J. F., Toffolo, Túlio A. M.

“…We propose a GRASP using an hybrid heuristic-subproblem optimization approach for the Multi-Level Capacitated Minimum Spanning Tree (MLCMST) problem. The…”
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Branch-and-cut and hybrid local search for the multi-level capacitated minimum spanning tree problem by Uchoa, Eduardo, Toffolo, Túlio A. M., de Souza, Mauricio C., Martins, Alexandre X., Fukasawa, Ricardo

“…We propose algorithms to compute tight lower bounds and high quality upper bounds (UBs) for the multilevel capacitated minimum spanning tree problem. We first…”
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GARP: A New Genetic Algorithm for the Unrelated Parallel Machine Scheduling Problem with Setup Times by Haddad, Matheus Nohra, Machado Coelho, Igor, Freitas Souza, Marcone Jamilson, Satoru Ochi, Luiz, Gambini Santos, Haroldo, Xavier Martins, Alexandre

“…This work addresses the Unrelated Parallel Machine Scheduling Problem where setup times are sequence-dependent and machine-dependent, the UPMSPST. The maximum…”
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