{"type":"ScholarlyArticle","title":"Risk Control in Multi-agent Coordination by Negotiation with a Trusted Third Party","authors":[{"name":"Shih-Hung Wu","slug":"shih-hung-wu","given":"Shih-Hung","family":"Wu","affiliation":""},{"name":"Von-Wun Soo","slug":"von-wun-soo","given":"Von-Wun","family":"Soo","affiliation":""}],"abstract":"In multi-agent coordination, the uncertainty may come from two major sources: the moves of the nature agent and the unpredictable behavior of other autonomous agents. The uncertainty may affect the expected payoff and the risk of an agent. A rational agent would not always play the strategy that gives the highest expected payoff if the risk is too high. To tackle the uncertainty in multi-agent coordination, a risk control mechanism is necessary in multiagent decision making. We assume agents may have different risk preferences, e.g. risk-averse, riskneutral, and risk-seeking, and separate the risk preference from the utility function of a given strategy. Taking agent's risk preference into account extends the notions of the dominant strategy, the Nash equilibrium, and the Pareto-efficiency in traditional game th eory. We show how the risk control can be carried out by a negotiation protocol using communication actions of asking guarantee and offering compensation via a trusted third party.","doi":null,"url":"https://ijcai.org/proceedings/1999/72","pdf":"https://ijcai.org/proceedings/1999/0072.pdf","markdown":"https://ijcai.org/proceedings/1999/72.md","bibtex":"https://ijcai.org/proceedings/1999/bibtex/72","volume":{"slug":"1999","title":"Proceedings of the Sixteenth International Joint Conference on Artificial Intelligence","short_title":"IJCAI 1999","url":"https://ijcai.org/proceedings/1999/","year":1999,"location":"Stockholm, Sweden","dates":"","editors":"Thomas Dean","isbn":"","publisher":"International Joint Conferences on Artificial Intelligence","doi_prefix":""},"section":"Distributed AI","track":"Distributed AI","number":72,"pages":{"first":500,"last":504},"keywords":[],"videos":[],"references":[],"license_note":"Copyright International Joint Conferences on Artificial Intelligence."}