A trust model based on bayesian approach

Authors:
Jian-Jun Qi;Zeng-Zhi Li;Ling Wei
Affiliations:
Institute of Computer Architecture and Network, Xi'an Jiaotong University, Xi'an, PR China;Institute of Computer Architecture and Network, Xi'an Jiaotong University, Xi'an, PR China;Department of Mathematics, Northwest University, Xi'an, PR China
Venue:
AWIC'05 Proceedings of the Third international conference on Advances in Web Intelligence
Year:
2005

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Abstract

Trust plays a vital role in web-based systems in which entities act in an autonomous and flexible manner. This paper proposes a novel trust model based on Bayesian approach for web-based systems. The relationships between entities are classified into 4 kinds according to what if there are recommendations and/or direct interactions. For these 4 situations, the estimator of the successful cooperation probability (SCP) between entities is analyzed by using Bayesian approach. Finally, we take the estimator as the basis of an entity trusting in another and obtain the entity's relatively fixed cooperation system which consists of all of its potential partners in the future.