Authors: Kratica, Jozef 
Dugošija, Đorđe
Savić, Aleksandar
Title: A new mixed integer linear programming model for the multi level uncapacitated facility location problem
Journal: Applied Mathematical Modelling
Volume: 38
Issue: 7-8
First page: 2118
Last page: 2129
Issue Date: 1-Jan-2014
Rank: M21
ISSN: 0307-904X
DOI: 10.1016/j.apm.2013.10.012
Abstract: 
This paper considers the multi level uncapacitated facility location problem (MLUFLP). A new mixed integer linear programming (MILP) formulation is presented and validity of this formulation is given. Experimental results are performed on instances known from literature. The results achieved by CPLEX and Gurobi solvers, based on the proposed MILP formulation, are compared to the results obtained by the same solvers on the already known formulations. The results show that CPLEX and Gurobi can optimally solve all small and medium sized instances and even some large-scale instances using the new formulation.
Keywords: Discrete location | Integer linear programming | Mathematical modeling | Multi level location problems
Publisher: Elsevier
Project: Mathematical Modelas and Optimization Methods on Large-Scale Systems 

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