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兴趣、习惯、交互三重驱动的微博用户动力学模型

DOI: 10.11990/jheu.201406021

Keywords: 时间间隔分布, 兴趣, 习惯, 交互, 行为动力学, 微博, 动力学模型

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Abstract:

针对微博用户行为问题,采集Sina微博实证数据分析了不同情境下的微博用户行为特征。分析结果表明:微博用户的发布行为存在周期性和阵发性,用户发布微博的时间间隔服从幂律分布,且幂指数与用户活跃性呈正相关关系,同时用户之间的交互能够进一步激发用户的发布行为。在此基础上,构建了兴趣、习惯、交互三重驱动模式下的用户行为动力学模型,通过数学推导可知,该模型能够获得幂指数为参数可调的幂律分布,且模型仿真结果与实证数据分析结果相吻合。

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