EPIA'03 - 11th Portuguese Conference on Artificial Intelligence

	Session: December 6, 10:0-11:0, Room B
Title:	A possibilistic modeling of autonomous agents negotiation
	Leila AMGOUD and Henri PRADE
Abstract:	Negotiation plays a key role in agent dialogue encounters as a means for sharing information or resources with the aim of looking for a common agreement. The process of negotiation is founded upon the notion of compromise and this comes about as a result of agent's preferences (goals): an agent may be willing to make concessions if in so doing, preferred states of affairs are obtained. This paper proposes a new approach which try to integrate both the merits of argumentation-based negotiation and heuristics methods looking for making trade-offs. Possibilistic logic is used as a unified setting, which proves to be convenient not only for representing the mental states of the agents (beliefs possibly pervaded with uncertainty, and prioritized goals), but also for revising the belief bases and for describing the decision procedure for selecting a new offer. % The approach is illustrated on two different examples. One takes place in a numerical setting, since it deals with a simplified price bargaining problem. The other, which is about choosing a common destination for holidays, involves a symbolic interpretation domain.

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