We consider the k-level stochastic facility location problem. For this, we present an LP rounding algorithm that is 3-approximate. This result is achieved by a novel integer linear programming formulation that exploits the stochastic structure.

Keywords Approximation algorithm, Facility location, Randomized rounding
Persistent URL dx.doi.org/10.1016/j.orl.2010.04.010, hdl.handle.net/1765/19665
Citation
Wang, Z, Du, D, Gabor, A.F, & Xu, D. (2010). An approximation algorithm for the k-level stochastic facility location problem. Operations Research Letters, 38(5), 386–389. doi:10.1016/j.orl.2010.04.010