Modeling and analysis of trust management with trust chain optimization in mobile ad hoc networks
Journal of Network and Computer Applications
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Recommendation-based trust models have emerged as an important risk management mechanism in Ecommerce and online environments. This paper presents a trust model with recommendations management based on subjective logic and Bayesian estimation. For dealing with recommendations, the theory of subjective logic is used to express trust properties as beliefs and a method is provided for mapping between similarity measures and trust. Using the derived trust in aggregation of recommendations, our proposal detects and protects against unfair recommendations. By using Bayesian estimation, our proposal integrates the subjective prior knowledge and the actual experience in to the estimation of trust. We present the test methods and their results to illustrate the accuracy and effectiveness of the approach.