This thesis focuses on the design of autonomous agents which can negotiate with people using argumentation strategies. Argumentation is the ability to argue and to persuade another party to accept a desired agreement, to acquire or give information, to coordinate goals and actions and to find and verify evidence [13]. Argumentation is endemic to human interaction. It facilitates knowledge about people's positions, and may improve the final outcome of negotiation [1, 2]. Despite the importance of argumentation within the general framework of negotiations, work on argumentation over the last few years has focused almost exclusively on the context of rational interactions between self-interested, automated agents [6, 7].
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