An Argumentation-Based Negotiation System

In argumentation-based negotiation (ABN), when negotiators only understand parts of the preference of the opponent, their argumentations will not always attack the goals of the opponent, but perhaps reinforce them. For this reason, on the basis of Dung´s argumentation framework which considers that the argumentation relation of negotiator and the opponent is only attack-relationship, we extend a preference-based argumentation framework in which the relation of argumentation of negotiator and preference of the opponent includes not only attack-relationship but also reinforce-relationship. In addition, argumentation is generally generated by argumentative logic reasoning. Once lacking some of them, it is difficult for ABN to generate argumentation. In order to deal with this problem, we propose a framework of ABN which can generate argumentation under the circumstance of lacking argumentative logic reasoning.