关键词: 社交网络, 信息传播概率, 影响力

Abstract: In the information propagation research of social network, it is the most common way to set up a propagation probability and simulate the information propagation by using various models. However, the appointed propagation probability has a great influence on the propagation. Based on the idea of finding important nodes in complex networks, this paper presents a method to calculate the probability of propagation. Experiment analyzes different results caused by the fixed propagation probability and the probability with influence of origin, and shows the calculated probability more satisfies the truth by validating the algorithm of node’s influence.

Key words: social network, information propagation probability, influence