Ideological and Temporal Components of Network Polarization in Online Political Participatory Media

David García, Adiya Abisheva, Simon Schweighofer, Uwe Serdült, Frank Schweitzer Policy & Internet, 2015,  7(1) Political polarization is traditionally analyzed through the ideological stances of groups and parties, but it also has a behavioral component that manifests in the interactions between individuals. We present an empirical analysis of the digital traces of politicians in politnetz.ch, …

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Online privacy as a collective phenomenon

Emre Sarigol, David García, Frank Schweitzer Proceedings 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 …

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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 …

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Measuring cultural dynamics through the Eurovision song contest

David García, Dorian Tanase. Advances in Complex Systems, 16, 2013 Measuring 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 …

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Political polarization and popularity in online participatory media: An integrated approach

David García, Fernando Mendez, Uwe Serdült, Frank Schweitzer. Proceedings of the first edition workshop on Politics, elections and data, PLEAD at CIKM (2012) We present our approach to online popularity and its applications to political science, aiming at the creation of agent-based models that reproduce patterns of popularity in participatory media. We illustrate our approach …

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Emotional persistence in online chatting communities

Antonios Garas, David García, Marcin Skowron, Frank Schweitzer. Scientific Reports 2, 402 (2012) How do users behave in online chatrooms, where they instantaneously read and write posts? We analyzed about 2.5 million posts covering various topics in Internet relay channels, and found that user activity patterns follow known power-law and stretched exponential distributions, indicating that …

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