A kind of network survivability assessment model based on subjective logic

This paper improved the Jøsang's subjective logic through the establishment of rectangular coordinate system, study on subjective logic properties in the two-dimensional image and using fitting line algorithm to depict dynamic trajectory of the opinion. At the same time, the Consensus operator was improved and made it more realistic. On this basis, this paper proposed a network survivability assessment model. It established a set of indicator system that could reflect the survivability and the formal description was given. Using the structures of the network environment for testing, the simulation results show that the indicator system is normative and complete. This model has higher sensitivity and effectiveness, which can better adapt to dynamic changes in the assessment of environment.