We study the problem of leasing facilities over time, following the general infrastructure leasing problem framework introduced by Anthony and Gupta [1]. If there are K different lease types, Anthony and Gupta give an O(K)-approximation algorithm for the problem. We are able to improve this to a 3-approximation algorithm by using a variant of the primal-dual facility location algorithm of Jain and Vazirani [5]. We also consider the online version of the facility leasing problem, in which the clients to be served arrive over time and are not known in advance. This problem generalizes both the online facility location problem (introduced by Meyerson [6]) and the parking permit problem (also introduced by Meyerson [7]). We give a deterministic algorithm for the problem that is O(Klogn)-competitive. To achieve our result, we modify an O(logn)-competitive algorithm of Fotakis [2] for the online facility location problem. © 2008 Springer-Verlag Berlin Heidelberg.
CITATION STYLE
Nagarajan, C., & Williamson, D. P. (2008). Offline and online facility leasing. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (Vol. 5035 LNCS, pp. 303–315). https://doi.org/10.1007/978-3-540-68891-4_21
Mendeley helps you to discover research relevant for your work.