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Institutional Repository [SANDBOX]
Technical University of Crete
Technical University of Crete
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| URI: | http://purl.tuc.gr/dl/dias/8488DAF0-89C3-4299-AF54-6C36FB2F37B5 | ||
| Year | 2020 | ||
| Type of Item | Conference Publication | ||
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| Bibliographic Citation | A. Georgara and G. Chalkiadakis, “Hedonic utility games”, in Hell. Conf. Artif.l Intell. SETN, 2020, pp. 26–33, doi: 10.1145/3411408.3411412. https://doi.org/10.1145/3411408.3411412 | ||
| Appears in Collections |
We initiate the study of a novel class of cooperative games, the Hedonic Utility Games (HUGs), that takes into consideration both hedonic and utility-related preferences. We first formally define HUGs, and show how to extend and apply existing stability solution concepts to them. Then, we put forward the novel Individually Rational - Individually Stable (IRIS) solution concept, developed specifically for HUGs, that characterizes the stability of coalition structures in such settings. In addition, we propose a natural, “trichotomous” hedonic preferences model; study certain HUGs’ properties in that model; and exploit it to characterize the feasibility of HUGs coalitions, and to obtain a probability bound for pruning the coalitional space, thus reducing the computational load of computing kernel-stable payoff configurations for IRIS partitions.
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