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Multi-level facility location as the maximization of a submodular set function
Prtiz-Astorquiza, Camilo; Contreras, Ivan; Laporte, Gilbert - In: European journal of operational research : EJOR 247 (2015) 3, pp. 1013-1016
Persistent link: https://www.econbiz.de/10011386427
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The hub line location problem
Martins de Sá, Elisangela; Contreras, Ivan; Cordeau, … - In: Transportation science : a journal of the Institute for … 49 (2015) 3, pp. 500-518
Persistent link: https://www.econbiz.de/10011338647
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Formulations and approximation algorithms for multilevel uncapacitated facility location
Ortiz-Astorquiza, Camilo; Contreras, Ivan; Laporte, Gilbert - In: INFORMS journal on computing : JOC 29 (2017) 4, pp. 767-779
Persistent link: https://www.econbiz.de/10011772463
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Multi-level facility location problems
Ortiz-Astorquiza, Camilo; Contreras, Ivan; Laporte, Gilbert - In: European journal of operational research : EJOR 267 (2018) 3, pp. 791-805
Persistent link: https://www.econbiz.de/10011812759
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The Tree of Hubs Location Problem
Contreras, Ivan; Fernádez, Elena; Marín, Alfredo - In: European journal of operational research : EJOR 202 (2010) 2, pp. 390-400
Persistent link: https://www.econbiz.de/10003960271
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The profit-oriented hub line location problem with elastic demand
Cobeña, Brenda; Contreras, Ivan; Martínez-Merino, Luisa I. - In: Computers & operations research : and their … 159 (2023), pp. 1-15
Persistent link: https://www.econbiz.de/10014455631
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Perspectives on modeling hub location problems
Alumur, Sibel A.; Campbell, James F.; Contreras, Ivan; … - In: European journal of operational research : EJOR 291 (2021) 1, pp. 1-17
Persistent link: https://www.econbiz.de/10012495300
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Two-level capacitated discrete location with concave costs
Malik, Aditya; Contreras, Ivan; Vidyarthi, Navneet - In: Transportation science 56 (2022) 6, pp. 1703-1722
Persistent link: https://www.econbiz.de/10014309435