Bayesian dynamic trust model

  • Authors:
  • Dimitri Melaye;Yves Demazeau

  • Affiliations:
  • Laboratoire Leibniz, Grenoble, France;Laboratoire Leibniz, Grenoble, France

  • Venue:
  • CEEMAS'05 Proceedings of the 4th international Central and Eastern European conference on Multi-Agent Systems and Applications
  • Year:
  • 2005

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Abstract

In this paper we propose a Bayesian dynamic trust model based on Castelfranchi and Falcone's works, thanks to which we can determine the agent's trust in another agent. Trust is not only a static mental state: it changes over time. Either some new observations are perceived and modify the trust level, or no observation is perceived and so trust is eroded. Our model takes into account these dynamic aspects by a Bayesian Kalman filter. We present, experiment and discuss our formalism compared with others models. The results obtained with our model are relevant and account for the particular dynamic aspects of trust.