The Influence of Personalities Upon the Dynamics of Trust and Reputation

When an agent resides in a community, the opinion of other community members concerning whether a particular individual is trustworthy or not influences the trust level of this agent. Hereby, the precise influence depends on the personality of the agent (e.g. whether he lets his opinion be influenced by others a lot). In this paper, a computational trust model which has dedicated parameters for agent personalities is applied to such a social context. A variety of different communities (containing agents with different personalities) have hereby been simulated. The resulting patterns hereof are shown in this paper. Furthermore, the simulation results are formally analyzed to show that certain patterns do occur in all different communities.