A Utility Revision Mechanism among Agents Based on User's Uncertain Judgements

In this paper, we propose a new utility revision mechanism for persuasion among agents in the Group Choice Design Support System (GCDSS), a system which helps a group decide on a reasonable choice from a list of alternatives. In the GCDSS, agents negotiate with each other on behalf of their users, and each user manages an agent and a system for an Analytic Hierarchy Process (AHP). Each user subjectively constructs a decision hierarchy and determines the various weights of alternatives by using an AHP. Based on the hierarchy and weights, agents negotiate with each other on behalf of their users. In negotiation, agents persuade each other in order to reach an agreement. If an agent is persuaded, the agent tries to revise the utility (or preference) for the state of his decision hierarchy. In this paper, we propose a new utility revision mechanism for persuasion among agents. The utility revision mechanism employs user's uncertain subjective judgements for the AHP. The advantage of the utility revision mechanism is that persuasion between agents is facilitated and agents can more e ectively come to a consensus.