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Approximation Algorithms for Metric Facility Location Problems
2006
SIAM journal on computing (Print)
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In this paper we present a 1.52-approximation algorithm for the metric uncapacitated facility location problem, and a 2-approximation algorithm for the metric capacitated facility location problem with soft capacities. Both these algorithms improve the best previously known approximation factor for the corresponding problem, and our soft-capacitated facility location algorithm achieves the integrality gap of the standard LP relaxation of the problem. Furthermore, we will show, using a result of
doi:10.1137/s0097539703435716
fatcat:vlck2hcesrbv7hbxwgzn33noka