Computing Approximate Pure Nash Equilibria in Shapley Value Weighted Congestion Games

M. Feldotto, M. Gairing, G. Kotsialou, A. Skopalik, in: Proceedings of the 13th International Conference on Web and Internet Economics (WINE), 2017.

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We study the computation of approximate pure Nash equilibria in Shapley value (SV) weighted congestion games, introduced in [19]. This class of games considers weighted congestion games in which Shapley values are used as an alternative (to proportional shares) for distributing the total cost of each resource among its users. We focus on the interesting subclass of such games with polynomial resource cost functions and present an algorithm that computes approximate pure Nash equilibria with a polynomial number of strategy updates. Since computing a single strategy update is hard, we apply sampling techniques which allow us to achieve polynomial running time. The algorithm builds on the algorithmic ideas of [7], however, to the best of our knowledge, this is the first algorithmic result on computation of approximate equilibria using other than proportional shares as player costs in this setting. We present a novel relation that approximates the Shapley value of a player by her proportional share and vice versa. As side results, we upper bound the approximate price of anarchy of such games and significantly improve the best known factor for computing approximate pure Nash equilibria in weighted congestion games of [7].
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Proceedings of the 13th International Conference on Web and Internet Economics (WINE)
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Feldotto M, Gairing M, Kotsialou G, Skopalik A. Computing Approximate Pure Nash Equilibria in Shapley Value Weighted Congestion Games. In: Proceedings of the 13th International Conference on Web and Internet Economics (WINE). ; 2017. doi:10.1007/978-3-319-71924-5_14
Feldotto, M., Gairing, M., Kotsialou, G., & Skopalik, A. (2017). Computing Approximate Pure Nash Equilibria in Shapley Value Weighted Congestion Games. In Proceedings of the 13th International Conference on Web and Internet Economics (WINE). https://doi.org/10.1007/978-3-319-71924-5_14
@inproceedings{Feldotto_Gairing_Kotsialou_Skopalik_2017, title={Computing Approximate Pure Nash Equilibria in Shapley Value Weighted Congestion Games}, DOI={10.1007/978-3-319-71924-5_14}, booktitle={Proceedings of the 13th International Conference on Web and Internet Economics (WINE)}, author={Feldotto, Matthias and Gairing, Martin and Kotsialou, Grammateia and Skopalik, Alexander}, year={2017} }
Feldotto, Matthias, Martin Gairing, Grammateia Kotsialou, and Alexander Skopalik. “Computing Approximate Pure Nash Equilibria in Shapley Value Weighted Congestion Games.” In Proceedings of the 13th International Conference on Web and Internet Economics (WINE), 2017. https://doi.org/10.1007/978-3-319-71924-5_14.
M. Feldotto, M. Gairing, G. Kotsialou, and A. Skopalik, “Computing Approximate Pure Nash Equilibria in Shapley Value Weighted Congestion Games,” in Proceedings of the 13th International Conference on Web and Internet Economics (WINE), 2017.
Feldotto, Matthias, et al. “Computing Approximate Pure Nash Equilibria in Shapley Value Weighted Congestion Games.” Proceedings of the 13th International Conference on Web and Internet Economics (WINE), 2017, doi:10.1007/978-3-319-71924-5_14.
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