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微博聚集了大量的用户群体,社区结构是微博网络的重要特征。为了探索微博网络的社区结构对舆论话题传播的影响规律,分析了微博用户选择关注对象的心理,基于此提出了微博社区网络的构造模型,该模型可以通过社区因子调节微博网络的社区结构特征。实验中验证了社区因子对微博网络社区结构的影响,基于SIR模型仿真分析了传播源节点和社区因子对微博舆论话题传播的影响机理。仿真结果表明,与名人效应相比,网络的社区结构对微博话题的传播具有一定的抑制作用。通过twitter实例数据对部分结论进行了验证。
Weibo gathered a large number of user groups, community structure is an important feature of the Weibo network. In order to explore the influence of Weibo network’s community structure on the spread of public opinion topics, this paper analyzes the psychology of Weibo users’ choosing the target of interest, and based on this, proposes the construction model of Weibo community network. This model can adjust the Weibo network Community structure characteristics. The influence of community factor on the microblog network community structure was verified in the experiment. Based on the SIR model, the influence mechanism of broadcast source node and community factor on microblogging topic communication was simulated. The simulation results show that compared with the celebrity effect, the community structure of the network has a certain inhibitory effect on the transmission of Weibo topics. Part of the conclusion was verified by twitter example data.