title: Minimum Search To EstablishWorst-Case Guarantees in Coalition Structure Generation creator: Rahwan, Talal creator: Michalak, Tomasz creator: Jennings, Nicholas R subject: Agent-based Computing subject: Agile Teaming description: Coalition formation is a fundamental research topic in multi-agent systems. In this context, while it is desirable to generate a coalition structure that maximizes the sum of the values of the coalitions, the space of possible solutions is often too large to allow exhaustive search. Thus, a fundamental open question in this area is the following: Can we search through only a subset of coalition structures, and be guaranteed to find a solution that is within a desirable bound � from optimum? If so, what is the minimum such subset? To date, the above question has only been partially answered by Sandholm et al. in their seminal work on anytime coalition structure generation [Sandholm et al., 1999]. More specifically, they identified minimum subsets to be searched for two particular bounds: � = n and � = dn=2e. Nevertheless, the question remained open for other values of �. In this paper date: 2011 type: Conference or Workshop Item type: PeerReviewed format: application/pdf identifier: http://www.orchid.ac.uk/eprints/5/1/Rahwan_Michalak_Jennings_1338_camera_ready.pdf identifier: Rahwan, Talal and Michalak, Tomasz and Jennings, Nicholas R (2011) Minimum Search To EstablishWorst-Case Guarantees in Coalition Structure Generation. In: IJCAI 11, July 16-22 2011, Barcelona, Spain. (In Press) relation: http://www.orchid.ac.uk/eprints/5/