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中文摘要：
微博在我国已发展成为人们日常获取信息的重要来源．在突发公共事件中，谣言通过微博的传播而迅速扩散，给网络舆论带来严重危害．以微博舆论生态研究为基础，把微博舆论中的谣言信息与辟谣信息看作动态的竞争过程，构建谣言信息与辟谣信息传播机理的Lotka—Volterra竞争模型，并从稳定条件和参数设置两个方面进行数值模拟与仿真分析．最后通过实证分析证明本研究对于消除微博谣言、引导微博舆论健康发展具有重要意义．
英文摘要：
Microblog （Weibo） has become an important source of public information in China. In the occurrence of public emergencies, rumors spread quickly through the Microblog （Weibo） and bring out damages to the network public opinions. This paper, based on the study of microblog public-opinion ecology, regards rumors and rumor-refuting information as a dynamic competition process, builds up a Lotka-Volterra Competition Model for the spread mechanism of rumors and rumor-refuting information, and conducts the numerical modeling and simulation analysis from the two aspects of stability condition and parameter settings. At last, through case analysis this paper is proved significant in eliminating rumors and guiding the microblog public opinions.
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