Structural and dynamical patterns on online social networks: the Spanish May 15th movement as a case study.

Structural and dynamical patterns on online social networks: the Spanish May 15th movement as a case study.
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在线社交网络上的结构和动态模式:西班牙5月15日运动作为案例研究。

DOI:
10.1371/journal.pone.0023883
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发表时间:
2011
期刊:
影响因子:
3.7
通讯作者:
Moreno Y
Moreno Y
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Borge-Holthoefer J;Rivero A;García I;Cauhé E;Ferrer A;Ferrer D;Francos D;Iñiguez D;Pérez MP;Ruiz G;Sanz F;Serrano F;Viñas C;Tarancón A;Moreno Y

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在日常生活中使用在线社交网络的人数正以前所未有的速度持续增长。这种新的沟通方式对观点、文化趋势、信息传播甚至新产品的商业成功都产生了巨大的影响。更重要的是,社会在线网络已显示为最近全国范围社会运动的基本组织机制。在本文中,我们提供了一个定量分析的结构和动态模式出现的在线社交网络的活动围绕正在进行的5月15日(15M)在西班牙的运动。我们的网络是由用户在一个月的时间内交换推文组成的,其中包括15M运动的诞生和稳定。我们深入刻画了这种动态网络的增长,发现它是无标度的,在中尺度上有社区。我们还发现,它的动态表现出典型的功能,如鲁棒性和幂律分布的几个数量的关键系统。值得注意的是,我们报告的模式特征的传播动力学是不对称的,从而引起了信息源和汇之间的明显区别。我们的研究代表了使用在线社交媒体数据来理解现代社会动态的第一步。
The number of people using online social networks in their everyday life is continuously growing at a pace never saw before. This new kind of communication has an enormous impact on opinions, cultural trends, information spreading and even in the commercial success of new products. More importantly, social online networks have revealed as a fundamental organizing mechanism in recent country-wide social movements. In this paper, we provide a quantitative analysis of the structural and dynamical patterns emerging from the activity of an online social network around the ongoing May 15th (15M) movement in Spain. Our network is made up by users that exchanged tweets in a time period of one month, which includes the birth and stabilization of the 15M movement. We characterize in depth the growth of such dynamical network and find that it is scale-free with communities at the mesoscale. We also find that its dynamics exhibits typical features of critical systems such as robustness and power-law distributions for several quantities. Remarkably, we report that the patterns characterizing the spreading dynamics are asymmetric, giving rise to a clear distinction between information sources and sinks. Our study represents a first step towards the use of data from online social media to comprehend modern societal dynamics.
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