Online privacy as a collective phenomenon

Emre Sarigol, David García, Frank SchweitzerProceedings of the 2nd ACM Conference in Online Social Networks (COSN’14) 2014 The problem of online privacy is often reduced to individual decisions to hide or reveal personal information in online social networks (OSNs). However, with the increasing use of OSNs, it becomes more important to understand the role of …

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The digital traces of bubbles: Feedback cycles between socio-economic signals in the Bitcoin economy

David García, Claudio Juan Tessone, Pavlin Mavrodiev, Nicolas Perony.Journal of the Royal Society Interface, 2014, 11 (99)What is the role of social interactions in the creation of price bubbles? Answering this question requires obtaining collective behavioural traces generated by the activity of a large number of actors. Digital currencies offer a unique possibility to measure …

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Social resilience in online communities: The autopsy of Friendster

David García, Pavlin Mavrodiev, Frank Schweitzer.Proceedings of the 1st ACM Conference in Online Social Networks (COSN’13) 2013 Listed in MIT Technology Review Best of 2013We empirically analyze five online communities: Friendster, Livejournal, Facebook, Orkut, Myspace, to identify causes for the decline of social networks. We define social resilience as the ability of a community to …

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Measuring cultural dynamics through the Eurovision song contest

David García, Dorian Tanase.Advances in Complex Systems, 16, 2013Measuring culture and its dynamics through surveys has important limitations, but the emerging field of computational social science allows us to overcome them by analyzing large-scale datasets. In this article, we study cultural dynamics through the votes in the Eurovision song contest, which are decided by a …

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