微博(Microblog)中信息传播的面积、速度、效率都得到了极大提高,研究信息在微博中的传播规律,对控制和引导舆论具有非常重要的理论价值和现实意义。结合信息在微博网络中的传播规则和微博网络的拓扑结构,通过构建一种新的基于微博网络的信息传播模型,并在实际新浪微博拓扑子网中模拟信息流向,得到如下结论:当信息敏感度大于某一临界值后,明星用户在信息扩散中的意见领袖角色随着信息敏感度的增加而逐渐弱化,当信息敏感度趋于1时,明星用户在信息传播中的优势趋于0。
The emergence of Microblog provides a powerful means for sharing information among between the ordinary people.In this paper,a novel information diffusion model based on Microblog network is proposed,the network structure,coupled with information diffusion mechanism,is considered.And based on the proposed model,the role of super-users and ordinary users in the information diffusion process is investigated.The simulation on information flow over a large static social network derived from Sina Microblog gives some interesting results.