Research of Trust Evaluation Based on Inherent Vector and Cloud Model

Trust evaluation model based on inherent vector and cloud model is advanced in open network. The concept of inherent vector of trust is put forward as the core of this model. Inherent trust degree is acquired on the basis of inherent trust vector. Forward and reverse algorithms of n dimensions trust cloud model is proposed to map between qualitative concepts and quantitative expressions. The numeral characteristics of trust cloud model are modified by inherent trust degree. The simulation results show that inherent trust vector is very helpful for evaluating ratings, especially when ratings are decentralized; Compared with existing trust cloud model, forward and reverse algorithms focusing on inherent trust degree generate more accurate qualitative evaluation.