A multiagent system to aggregate preferences

In this paper we build a multi-agent system to aggregate preferences of decision-makers. In our system, a decision-maker is a cognitive agent who debates with other agents in view to obtain a consensus about the preference between two objects. Our approach is based on the simulation of debates where preferences of these agents can changed according to influences or coalitions between agents. Our multiagent system gives us an iterative process to aggregate preferences and displays some informations about the processes of negotiation between decision-makers.