介绍了无标度网络上的传播动力学,在susceptible-infected-susceptible(SIS)模型的基础上考察了一般情况下无标度网络中疾病爆发的临界点问题,得出了关于临界点一般性的表达式.得到的结果在特殊情况下分别退化为已有的一些经典结论.同时分别讨论了这些情况的建模意义和可靠性.
The spreading dynamics on scale-free networks is considered. Based on the SIS (susceptible-infected-susceptible) model, we investigate the critical point at which the epidemic breaks out in a very general setting. Some previous results, each of which is analyzed, can be seen as the special cases of our result, and the modeling reliability in each case is also discussed.