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Some heuristic methods for solving p-median problems with a coverage constraint

Sáez-Aguado, Jesús; Trandafir, Paula Camelia - In: European Journal of Operational Research 220 (2012) 2, pp. 320-327

. Second, a multistart GRASP heuristic is developed, based on the previous local search methods. Third, by employing Lagrangean …

Persistent link: https://www.econbiz.de/10011052433

Multi-start methods for combinatorial optimization

Martí, Rafael; Resende, Mauricio G.C.; Ribeiro, Celso C. - In: European Journal of Operational Research 226 (2013) 1, pp. 1-8

Multi-start methods strategically sample the solution space of an optimization problem. The most successful of these methods have two phases that are alternated for a certain number of global iterations. The first phase generates a solution and the second seeks to improve the outcome. Each...

Persistent link: https://www.econbiz.de/10011052457

A reactive GRASP algorithm for the container loading problem with load-bearing constraints

Alonso, Maria Teresa; Alvarez-Valdes, Ramon; Tamarit, … - In: European Journal of Industrial Engineering 8 (2014) 5, pp. 669-694

. We have developed different heuristics for solving the problem and we have combined them into a GRASP algorithm. The …

Persistent link: https://www.econbiz.de/10011130256

ILS-ESP: An Efficient, Simple, and Parameter-Free Algorithm for Solving the Permutation Flow-Shop Problem

Barrios, Barry B.; Castellà, Quim; Juan, Angel A.; … - Barcelona Graduate School of Economics (Barcelona GSE) - 2012

metaheuristic. Our approach defines a new operator for the ILS perturbation process, a new acceptance criterion based on extremely … experiments show that, when using parallel computing, it is possible to improve the top ILS-based metaheuristic by just …

Persistent link: https://www.econbiz.de/10011132909

Multiobjective GRASP with Path Relinking

Martí, Rafael; Campos, Vicente; Resende, Mauricio G.C.; … - In: European Journal of Operational Research 240 (2015) 1, pp. 54-71

In this paper we review and propose different adaptations of the GRASP metaheuristic to solve multiobjective … components of GRASP when two or more objectives are considered. GRASP has been successfully coupled with Path Relinking for … single-objective optimization. Moreover, we propose different hybridizations of GRASP and Path Relinking for multiobjective …

Persistent link: https://www.econbiz.de/10011097710

A hybrid metaheuristic algorithm for the multi-depot covering tour vehicle routing problem

Allahyari, Somayeh; Salari, Majid; Vigo, Daniele - In: European Journal of Operational Research 242 (2015) 3, pp. 756-768

. For this problem we develop two mixed integer programming formulations and a hybrid metaheuristic combining GRASP …

Persistent link: https://www.econbiz.de/10011190821

A novel dual-stage shape memory alloy actuated gripper

Li, Xiaozheng; Liu, Shutian; Tong, Liyong; Gao, Renjing - In: Industrial Robot: the international journal of robotics … 50 (2022) 2, pp. 326-336

grasp performance is improved through primary and secondary actuation. Design/methodology/approach This paper presents a …

Persistent link: https://www.econbiz.de/10014835575

Solving the Set Covering Problem with Conflicts on Sets : a new parallel GRASP

Carrabs, Francesco; Cerulli, Raffaele; Mansini, Renata; … - In: Computers & operations research : an international journal 166 (2024), pp. 1-18

Persistent link: https://www.econbiz.de/10014564988

Formulations and heuristic for the long-term preventive maintenance order scheduling problem

Marques de Andrade, João Luiz; Souza, Marcone Jamilson … - In: Computers & operations research : an international journal 170 (2024), pp. 1-21

Persistent link: https://www.econbiz.de/10015066347

A GRASP algorithm for the concrete delivery problem

Ali, Ousmane; Côté, Jean-François; Coelho, Leandro C. - In: Computers & operations research : an international journal 172 (2024), pp. 1-14

Persistent link: https://www.econbiz.de/10015066878