节点的时间异质性对信息传播的影响
THE INFLUENCE OF THE TIME HETEROGENEITY OF NODES ON THE INFORMATION DISSEMINATION
复杂系统中节点活跃时间的异质性对信息传播具有显著性的影响,而现有的研究涉及较少.文章引入传播树模型针对复杂网络中节点活跃时间的异质性对信息传播的影响进行研究,基于SI模型的传染病机制,运用生成函数方法严格证明了当节点的活跃时间服从伽马型概率分布时,节点的信息传播影响力的变化具有多态性,即传播时间
The active time heterogeneity of nodes has a significant impact on the information dissemination in the complex systems, but existing studies on it are less. This paper introduces the model of spread tree based on the infectious disease mechanism of SI model and the generating function method to strictly prove that the changes of node influence has polymorphism on the information dissemination under the condition that the active time of nodes follow gamma probability distribution. Results show that the number of infected nodes follows exponential distribution when propagation time
异质性 / 传播树 / 生成函数方法 / 伽马型概率分布. {{custom_keyword}} /
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