MIP Modeling of Incremental Connected Facility Location

  • Ashwin Arulselvan
  • Andreas Bley
  • Stefan Gollowitzer
  • Ivana Ljubić
  • Olaf Maurer
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6701)


We consider the incremental connected facility location problem, in which we are given a set of potential facilities, a set of interconnection nodes, a set of customers with demands, and a planning horizon. For each time period, we have to select a set of facilities to open, a set of customers to be served, the assignment of these customers to the open facilities, and a network that connects the open facilities. Once a customer is served, it must also be served in subsequent periods. Furthermore, in each time period the total demand of all customers served must be at least equal to a given minimum coverage requirement for that period. The objective is to maximize the net present value of the network, which is given by the discounted revenues of serving the customers and by the discounted investments and maintenance costs for the facilities and the network. We study different MIP models for this problem, discuss some valid inequalities to strengthen these formulations, and present a branch and cut algorithm for finding its solution. Finally, we report (preliminary) computational results of our implementation of this algorithm.


Facility Location Valid Inequality Greedy Randomize Adaptive Search Procedure Facility Location Problem Steiner Tree Problem 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Ashwin Arulselvan
    • 1
  • Andreas Bley
    • 1
  • Stefan Gollowitzer
    • 2
  • Ivana Ljubić
    • 3
  • Olaf Maurer
    • 1
  1. 1.MATHEONTechnische Universität BerlinBerlinGermany
  2. 2.Department of Statistics and Operations ResearchUniversity of ViennaAustria
  3. 3.Institute of Computer Graphics and AlgorithmsVienna University of TechnologyAustria

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