计算机科学 ›› 2014, Vol. 41 ›› Issue (12): 82-85.doi: 10.11896/j.issn.1002-137X.2014.12.018
杨子龙,黄曙光,王珍,李永成,肖佳
YANG Zi-long,HUANG Shu-guang,WANG Zhen,LI Yong-cheng and XIAO Jia
摘要： 随着微博的迅速兴起,提取信息传播特征和构建传播模型已成为研究热点。针对用户转发行为,首先分析信息转发结构,提取信息老化特征；然后结合转发时效性,基于平均转发概率的递减规律提出SIR的改进模型；最后利用真实转发数据验证了模型的合理性。结果表明,考虑信息时效性和老化特征,能够较好地拟合信息传播过程。进一步,将利用该模型分析不同节点传播影响力,发现其分布服从无标度特征。
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