A tighter formulation of the p-median problem

@article{Elloumi2010ATF,
  title={A tighter formulation of the p-median problem},
  author={Sourour Elloumi},
  journal={J. Comb. Optim.},
  year={2010},
  volume={19},
  pages={69-83}
}
Given a set of clients and a set of potential sites for facilities, the p-median problem consists of opening a set of p sites and assigning each client to the closest open facility to it. It can be viewed as a variation of the uncapacitated facility location problem. We propose a new formulation of this problem by a mixed integer linear problem. We show that this formulation, while it has the same value by LP-relaxation, can be much more efficient than two previous formulations. The… CONTINUE READING
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