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arXiv 1202.2215cs.SIphysics.soc-ph
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社交网络中的话题扩散与病毒式传播

Topic Diffusion and Emergence of Virality in Social Networks

S. Rajyalakshmi, Amitabha Bagchi, Soham Das, Rudra M. Tripathy

摘要:

我们提出了一个随机模型的主题进入一个社会网络建模的Watts-Strogatz图的扩散。我们的模型在这些主题之间展开了一场隐性竞争,因为它们争夺网络中用户的注意力。我们的模型的动态是基于从现实世界的OSN,如Twitter,用户要么采用一个外源的主题或复制主题从他们的邻居导致内源性传播的概念。当正确实例化时,该模型实现了一种病毒式的机制,其中一些主题从网络中获得了异常良好的响应,密切模仿了现实世界OSN的行为。我们的主要贡献是我们的描述,集群的近距离用户已经发言的主题合并,形成一个巨大的组成部分,使一个主题去病毒。这表明,在病毒式传播中发挥重要作用的不是弱关系,而是强关系。我们进一步验证我们的模型和我们的假设,其行为通过比较我们的模拟结果与测量研究的结果从Twitter上采取的真实数据。

英文摘要:

We propose a stochastic model for the diffusion of topics entering a social network modeled by a Watts-Strogatz graph. Our model sets into play an implicit competition between these topics as they vie for the attention of users in the network. The dynamics of our model are based on notions taken from real-world OSNs like Twitter where users either adopt an exogenous topic or copy topics from their neighbors leading to endogenous propagation. When instantiated correctly, the model achieves a viral regime where a few topics garner unusually good response from the network, closely mimicking the behavior of real-world OSNs. Our main contribution is our description of how clusters of proximate users that have spoken on the topic merge to form a large giant component making a topic go viral. This demonstrates that it is not weak ties but actually strong ties that play a major part in virality. We further validate our model and our hypotheses about its behavior by comparing our simulation results with the results of a measurement study conducted on real data taken from Twitter.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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