arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1209.0835cs.SIcs.CYphysics.soc-ph
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社会属性网络的演变:使用Google+的测量,建模和含义

Evolution of Social-Attribute Networks: Measurements, Modeling, and Implications using Google+

Neil Zhenqiang Gong, Wenchang Xu, Ling Huang, Prateek Mittal, Emil Stefanov, Vyas Sekar, Dawn Song

摘要:

了解社会网络的结构和演变对网络和系统设计的许多方面具有重要意义,包括通过社交网络提供、引导信任和信誉系统以及防御Sybil攻击。最近的几个结果表明,用用户属性(例如,位置、雇主、兴趣社区)可以提供对社交网络的更细粒度的理解。然而,很少有研究能够系统地了解这些影响。我们使用一个独特的数据集来弥补这一差距,该数据集是随着Google+社交网络自2011年6月下旬发布以来的不断发展而收集的。我们观察到新的现象与标准的社交网络指标和新的属性相关的指标(我们定义)。我们还观察到有趣的演变模式,因为Google+从引导阶段到公开发布之前的稳定邀请阶段。基于我们的经验观察,我们开发了一个新的生成模型,共同再现社会结构和节点属性。通过理论分析和实证评估,我们表明,我们的模型可以准确地再现真实的社交网络的社会和属性结构。我们还证明了我们的模型为实际应用环境提供了更准确的预测。

英文摘要:

Understanding social network structure and evolution has important implications for many aspects of network and system design including provisioning, bootstrapping trust and reputation systems via social networks, and defenses against Sybil attacks. Several recent results suggest that augmenting the social network structure with user attributes (e.g., location, employer, communities of interest) can provide a more fine-grained understanding of social networks. However, there have been few studies to provide a systematic understanding of these effects at scale. We bridge this gap using a unique dataset collected as the Google+ social network grew over time since its release in late June 2011. We observe novel phenomena with respect to both standard social network metrics and new attribute-related metrics (that we define). We also observe interesting evolutionary patterns as Google+ went from a bootstrap phase to a steady invitation-only stage before a public release. Based on our empirical observations, we develop a new generative model to jointly reproduce the social structure and the node attributes. Using theoretical analysis and empirical evaluations, we show that our model can accurately reproduce the social and attribute structure of real social networks. We also demonstrate that our model provides more accurate predictions for practical application contexts.

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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