无尺度网络上的蠕虫传播行为研究

The Research of Worm Propagation Behavior in Scale-Free Networks

许多网络如因特网、人类间的社会关系和物种之间的食物链网络等，都是无尺度网络。研究无尺度网络，对于防范黑客攻击、防治蠕虫的传播等都具有重要的意义．本文对随机网络和无尺度网络做了比较．重点介绍无尺度网络上蠕虫传播行为的特性——阈值和强韧性，最后指出了蠕虫防治的方法。

Many networks such as Internet, social networks and food chain among species are scale-free networks. Studying SF network is very important for keeping away hackers＇ attack and worm propagation. Firstly, SF networks are compared with random networks in the paper. Secondly, the features of worm propagation behaviors in SF network are introduced emphatically. Lastly, some methods of preventing worm propagation are pointed in SF networks.