A node similarity based trust transmission method

Abstract

A novel trust transmission method which is based on the similarities of nodes in trust models is proposed in this paper. Trust transmission is evaluated by calculating the similarity between recommenders when trustor does not have direct interaction with trustee. However, when there does not have direct recommenders, trust transmission is realized by guaranteed trust chains. Simulation results show that the proposed method improves the trustworthiness of node behavior to some extent and is practical especially in case when nodes do not know each other. © Springer-Verlag Berlin Heidelberg 2012.