Practical run-time norm enforcement with bounded lookaheadTools Alechina, Natasha, Bulling, Nils, Dastani, Mehdi and Logan, Brian (2015) Practical run-time norm enforcement with bounded lookahead. In: 14th International Conference on Autonomous Agents and Multiagent Systems, 4-8 May 2015, Istanbul, Turkey. Full text not available from this repository.
Official URL: http://dl.acm.org/citation.cfm?id=2772937
AbstractNorms have been widely proposed as a means of coordinating and controlling the behaviour of agents in a multi-agent system. A key challenge in normative MAS is norm enforcement: how and when to restrict the agents’ behaviour in order to obtain a desirable outcome? Even if a norm can be enforced theoretically, it may not be enforceable in a grounded, practical setting. In this paper we study the problem of practical norm enforcement. The key notion is that of a guard. Guards are functions which restrict the possible actions after a history of events. We propose a formal, computational model of norms, guards and norm enforcement, based on linear-time temporal logic with past operators. We show that not all norms can be enforced by such guard functions, even in the presence of unlimited computational power to reason about future events. We analyse which norms can be enforced by guards if only a fixed lookahead is available. We investigate decision problems for this question with respect to specific classes of norms, related to safety and liveness properties.
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