中文摘要：

通过对群体性突发事件信息传播网络结构的形成与应用进行综述,并基于BA无标度网络理论对群体性突发事件信息传播网络结构特性进行分析;发现群体成员之间的信息传播行为同时受择优和随机作用机制的影响,以此构建其网络结构模型。理论证明所构建模型服从偏移后的幂律分布,仿真结果也验证了模型的无标度特性;仿真分析了个体偏好及群体规模对网络结构异质性的影响,并发现发挥主体作用的个体是较为分散的。

英文摘要：

This article reviews some literature about the formation process and applications of the infor-mation dissemination network in the mass unexpected incidents, and analyzes the topology characteristicsof the network based on BA scale-free network. Study shows that the information propagation among indi-vidual has preferences and randomness, based on which we can construct its theoretical network model.Through theoretical analysis, the constructed network approximately obeys the power-law distribution.Through simulation we analyze the effect of individual preference and population size on the network het-erogeneity.