In this paper, we study how argumentation can be used as a basis for negotiation between autonomous agents, where negotiation strategies of the different parties are represented as argumentation theories within their knowledge. We propose an argumentation based negotiation protocol in which offers by the negotiating parties are linked to different arguments that they can build according to their individual negotiation strategy. This protocol is able to take into account the different roles of agents and context of interaction, where the strength of the arguments supporting an offer can depend on these factors. The agents can adapt their negotiation strategies and offers, as their environment changes, in particular during the course of the negotiation as they exchange information. In addition, using abduction alongside with argumentation, agents can find negotiating conditions to support an argument for an offer, thus extending the negotiation object in order to help find an agreement....
Antonis C. Kakas, Pavlos Moraitis