中文摘要：

微博已经成为大众获取、传播信息的主要互联网应用之一,对微博信息传播的内在机理与信息传播模型却鲜有研究。文章揭示了微博信息传播的临界值和免疫机理,分析了影响微博信息传播的多种因素,在此基础上构建了微博信息传播模型。通过在规则网络、随机网络、微博信息传播网络中的仿真,验证了传播机理的有效性与传播模型中各参数对信息传播速度、广度的影响。

英文摘要：

Micro-blog has become one of the main internet applications for information acquisition anddissemination. However, there are few researches on Micro-bog information dissemination mechanismand model. This paper revealed Micro-blog information dissemination mechanisms about disseminationcritical value and immune, analyzed many kinds of influence factors on Micro-blog information dissemina-tion, Constructed Micro-blog information dissemination model. Through information dissemination simula-tion on networks of regular, random and Micro-blog, verified effectiveness of dissemination mechanismsand influence of parameters in the model on information dissemination velocity and width.