中文摘要：

[目的／意义]通过建模仿真的形式分析突发事件发生后权威信息与谣言同时在微博中传播的作用规律。分析权威信息对突发事件微博谣言的控制作用，以期为政府及相关部门有效应对微博谣言提供参考。[方法／过程]对权威信息节点进行了定义，加入了权威信息节点A，分析了权威信息发布后突发事件微博谣言的传播规则。构建了新的两阶段的A-SC1C2IR模型并得出模型的动态方程；以BA无标度网络为基础，采用Monte—Carlo方法对模型进行仿真分析。[结果／结论]从仿真结果可以看出。权威信息发布的越早越能有效地控制谣言传播，权威信息发布者的权威性以及权威信息的公信力对谣言传播的控制效果受权威信息发布时间点的影响较大。

英文摘要：

[ Purpose/SIgnificance ] In order to provide a reference for the government and relevant departments to respond the micro-blog minors effectively, through modeling and simulation, the role of law of authoritative information and rumors spread at the same time via microblog after the emergency occurs is analyzed, and the control effect of authoritative information in microblog rumors spreading under emergencies is explored. [ Method/Process] In this paper, authoritative information node is defined by adding the authoritative information node A. A new two-stage model called A-SC1C2IR is built by analyzing emergency microblog rumors spreading rule after the authoritative information is released and the dynamic model equations are obtained. Then the A-SC1C2IR model is analyzed by simulation using the Monte-Carlo method in BA scale-free network. [ Result/Conclusion ] The simulation results show that the sooner the authoritative information is released, the better the control effectiveness of the spread of rumors will be; the real control effectiveness of the rumor spreading of the authority of authoritative information publisher and credibility of authoritative information is closely related to the release time point of authoritative information.