基于社会网络分析的网络谣言研究——以食品安全微博谣言为例

Study on Micro-blog Rumor Based on Social Network Analysis—A Case Study on the Micro-blog about Food Security

运用社会网络分析方法研究微博谣言的网络结构特征、识别和挖掘关键节点和核心团体,探究谣言传播的网络结构、子群内外关系对谣言传播的影响等问题。以2013年食品安全微博谣言为实证研究对象,对食品安全谣言进行网络结构、凝聚子群、关键节点进行研究。研究发现,2013年食品安全微博谣言传播网络的小世界现象不是很显著,网络结构呈现出稀疏性、连通性、不稳定性、脆弱性等特点,可以通过引导和密切关注网络中的意见领袖,以减少谣言的传播以及恐慌情绪的扩散。

This paper introducing the social network analysis aims to explore the features of Micro-blog rumors＇ structure, identify the key nodes and core groups and prode the influence of rumors＇ spread structure and subgroups＇ internal and external relations on the spread of ru-mor. The paper is an exploratory case study on Micro-blog rumors about food security in 2013 and it analyses network＇structure and cohe-sive subgroup, mining opinion leaders. The analysis reveals that the small-world phenomenon of Micro-blog rumors about food security in 2013 is not very obvious and the network＇s structure is of sparsity, connectivity, instability and fragility. It is operational to reduce dis-semination of rumors and spead of panic by guiding and taking control of network opinion leaders.