Abstract:

By introducing a random-walk betweenness (RB) into the cascading failure model, a cascading failure model based on RB is proposed, which is more practical than the cascading failure model based on betweenness. In order to study the characteristics of the model, the model is compared with the cascading failure model based on betweenness in scale-free network and random network by simulation. Through the simulation of two group scale-free network models (four models in all) and two random network models, it is found that the node betweenness of the cascading failure model based on RB is smaller, and difference among different nodes is smaller as well. Furthermore, the reason of the simulation results is analyzed.