Online Facility Location


We consider the online variant of facility location, in which demand points arrive one at a time and we must maintain a set of facilities to service these points. We provide a randomized onlineO(1)-competitive algorithm in the case where points arrive in random order. If points are ordered adversarially, we show that no algorithm can be constant-competitive, and provide an O(logn)-competitive algorithm. Our algorithms are randomized and the analysis depends heavily on the concept of expected waiting time. We also combine our techniques with those of Charikar and Guha to provide a linear-time constant approximation for the offline facility location problem.

DOI: 10.1109/SFCS.2001.959917

Extracted Key Phrases

Citations per Year

176 Citations

Semantic Scholar estimates that this publication has 176 citations based on the available data.

See our FAQ for additional information.

Cite this paper

@inproceedings{Meyerson2001OnlineFL, title={Online Facility Location}, author={Adam Meyerson}, booktitle={FOCS}, year={2001} }