基于无尺度网络雪崩效应控制的仿真研究

在现实世界中很多复杂网络表现无尺度的特性例如因特网，通过模拟发现，如果去除无尺度网络中少数几个主要集散节点并任由这些节点的负载在网络上传播，就足以搞垮整个网络，这就是无尺度网络中存在的雪崩效应。该文就如何控制这种无尺度网络上的雪崩传播进行了探讨。在对无尺度网络雪崩效应建立数学模型的基础上，该文首先探讨了在无尺度网络中由于中心节点遭受攻击而使得其负载在网络中重新分布而发生雪崩效应的机理。通过仿真，提出了一个雪崩效应的控制方法，即通过有选择地消掉某些边缘节点或中心链路，从而达到减小雪崩效应在全网传播的效果。

Simulation Research on the Control of Cascade-based Attack in Scale-free Networks

Many networks in the real - world have the features of scale - free networks such as Internet. By simulations, we can see that if we move a few important central nodes deliberately and make their loads spread discretionarily in the net,we can fall apart the whole net,this is so- called cascade in the scale-free net. The paper discusses how to control the cascade spreading on the scale - free networks. Based on modeling the cascade on the scale - free networks, the paper firstly researchs the principle on how to bring the cascade in the scale - free networks by attacking the central nodes deliberately. Then by simulation ,the paper brings forward two methods that control the cascade by moving some selected peripheral nodes or central peripheral links.