Abstract
In this paper we consider a strategic variant of the online facility location problem. Given is a graph in which each node serves two roles: it is a strategic client stating requests as well as a potential location for a facility. In each time step one client states a request which induces private costs equal to the distance to the closest facility. Before serving, the clients may collectively decide to open new facilities, sharing the corresponding price. Instead of optimizing the global costs, each client acts selfishly. The prices of new facilities vary between nodes and also change over time, but are always bounded by some fixed value \(\alpha \). Both the requests as well as the facility prices are given by an online sequence and are not known in advance.
We characterize the optimal strategies of the clients and analyze their overall performance in comparison to a centralized offline solution. If all players optimize their own competitiveness, the global performance of the system is \(\mathcal {O}(\sqrt{\alpha }\cdot \alpha )\) times worse than the offline optimum. A restriction to a natural subclass of strategies improves this result to \(\mathcal {O}(\alpha )\). We also show that for fixed facility costs, we can find strategies such that this bound further improves to \(\mathcal {O}(\sqrt{\alpha })\).
This work was partially supported by the German Research Foundation (DFG) within the Collaborative Research Centre “On-The-Fly Computing” (SFB 901).
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Notes
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This may be justified since an optimal algorithm might be hard to determine for the players.
References
Albers, S., Koga, H.: New on-line algorithms for the page replication problem. J. Algorithms 27(1), 75–96 (1998)
Awerbuch, B., Bartal, Y., Fiat, A.: Competitive distributed file allocation. In: Proceedings of the 25th Annual ACM Symposium on Theory of Computing (STOC), pp. 164–173. ACM (1993)
Bienkowski, M.: Price fluctuations: to buy or to rent. In: Bampis, E., Jansen, K. (eds.) WAOA 2009. LNCS, vol. 5893, pp. 25–36. Springer, Heidelberg (2010). doi:10.1007/978-3-642-12450-1_3
Fotakis, D.: On the competitive ratio for online facility location. Algorithmica 50(1), 1–57 (2008)
Fotakis, D., Tzamos, C.: On the power of deterministic mechanisms for facility location games. ACM Trans. Econ. Comput. 2(4), 15:1–15:37 (2014)
Immorlica, N., Kalai, A.T., Lucier, B., Moitra, A., Postlewaite, A., Tennenholtz, M.: Dueling algorithms. In: Proceedings of the 43rd Annual ACM Symposium on Theory of Computing (STOC), pp. 215–224. ACM (2011)
Kling, P., auf der Heide, F.M., Pietrzyk, P.: An algorithm for online facility leasing. In: Even, G., Halldórsson, M.M. (eds.) SIROCCO 2012. LNCS, vol. 7355, pp. 61–72. Springer, Heidelberg (2012). doi:10.1007/978-3-642-31104-8_6
Meyerson, A.: Online facility location. In: Proceedings of the 42nd IEEE Symposium on Foundations of Computer Science (FOCS), pp. 426–431 (2001)
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Drees, M., Feldkord, B., Skopalik, A. (2016). Strategic Online Facility Location. In: Chan, TH., Li, M., Wang, L. (eds) Combinatorial Optimization and Applications. COCOA 2016. Lecture Notes in Computer Science(), vol 10043. Springer, Cham. https://doi.org/10.1007/978-3-319-48749-6_43
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DOI: https://doi.org/10.1007/978-3-319-48749-6_43
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