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, …

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 …

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 …

Gender Asymmetries in Reality and Fiction: The Bechdel Test of Social Media

David García, Ingmar Weber, Venkata Rama Kiran Garimella. Proceedings of the 8th International AAAI Conference on Weblogs and Social Media (2014) The subjective nature of gender inequality motivates the analysis and comparison of data from real and fictional human interaction. We present a computational extension of the Bechdel test: A popular tool to assess if …

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 2013 We 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 …

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 …

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 …

David García, Antonios Garas, Frank Schweitzer. EPJ Data Science, 1:3 We show that the frequency of word use is not only determined by the word length and the average information content, but also by its emotional content.We have analysed three established lexica of affective word usage in English, German, and Spanish, to verify that these …

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 …

David Garcia

Social Data Science – Complexity Science – Responsible AI

Author Archives: dgarcia

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

Online privacy as a collective phenomenon

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

Godwin’s law in the World Cup 2014

Gender Asymmetries in Reality and Fiction: The Bechdel Test of Social Media

Social resilience in online communities: The autopsy of Friendster

Measuring cultural dynamics through the Eurovision song contest

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

Positive words carry less information than negative words

Emotional persistence in online chatting communities