Research On The Cascading Failures Model And Application Of Hypernetwork Based On Capacity-load

With the development of modern technology,the Internet network has been integrated into human social life,and people are getting increasingly dependent on the Internet.If the network system fails,it will produce massive losses and even catastrophic consequences,which will cause an adverse effect on daily life.Therefore,it is significant to have a deep understanding of the causes and the mechanism of network failures,especially for optimizing network structure,preventing network crash,and reducing losses caused by network failures.Most of the researches on the cascading failures of the hypernetworks are based on the uniform hypernetwork,however,there are few studies on the cascading failures of nonuniform hypernetwork.In this paper,some basic research work has been done on the cascading failures of the nonuniform hypernetwork based on the hypergraph structure.The main research and the achievements are as follows:1.The capacity-load cascading failures model of the hypernetwork is proposed.This paper proposes a capacity-load model to describe the cascading failures behaviors of the nonuniform hypernetwork.This model is used to study the phenomenon of cascading failures of the hypernetwork after removing a single hyperedge.Through simulation,the cascading failures characteristics of the hypernetwork under different attack strategies and allocation strategies are obtained,and then the robustness of several types of typical hypernetworks is obtained.2.By analyzing the relationship between the capacity of several types of hypernetworks and their robustness,the author deduces analytical expressions for the capacity thresholds of several types of nonuniform hypernetworks based on nonuniform load distribution.3.In this paper,Xining public transport hypernetwork model is built,and its topological characteristics,such as node degree,node hyperdegree and hyperedge degree,are analyzed.Besides,the capacity-load cascading failures model is applied to the hypernetwork,and the robustness of the hypernetwork is analyzed by simulation experiments.Finally,some strategies to improve the robustness of the hypernetwork are put forward.