中文摘要：

舆论传播研究的重要方向是其动力学分析，目前已经建立了多种动力学模型并应用于特定的网络结构，然而缺乏动力学模型中结合社团和个体差异性的分析．为了挖掘社团网络结构下的舆论传播规律，本文建立了具有社团结构、演变规则和个体差异性的两社团舆论传播模型，其中引入了体现社团和个体差异性的参数集合，并通过计算机仿真分析给出了不同的社团公关能力和观点领袖作用下的舆论演进趋势．结果表明：在社团对外公关能力相当时，加强社团内部公关能力有积极作用；对外公关能力强的社团加强内部公关结果却适得其反；社团对外公关能力和观点领袖对舆论传播的引导作用显著，但是观点领袖的个人作用难以对抗社团对外公关能力的整体优势．

英文摘要：

Recently, a lot of opinion dynamic models were proposed and applied to specific network structure. However, few dynamic models focused on the difference analysis that combines community and individual characteristics. In order to reveal features of opinion propagation on networks with community structures, a dynamic model with two communities is presented which takes into account the differences in community structures, evolution rules and individual characteristics. In the model, a set of parameters are defined to quan- tify such differences, and their effect on public propagation trends is studied by means of computer simulation. The experimental results show the following conclusions. If external public relations abilities between the two communities are equal, strengthening communities＇ internal public relations ability would result in an positive effect. However, if the community with better external public relations ability strengthens its internal public relations ability, it would obtain an opposite result; In addition, both communities＇ external public relations ability and the opinion leader play a significant role in guiding opinion propagation, however, opinion leader＇s personal effect is hard to fight against the overall advantage of the communities＇ external public relations ability.