Séminaire MIDI : Mariano Beiro

Titre du séminaire et orateur

Following the Argentinian presidential campaign with a massive data capture from Twitter.

Mariano Beiró, Researcher at CONICET (National Scientific and Technical Research Council, Argentina)

Date et lieu

Mercredi 4 mars 2020, 14h.

Laboratoire ETIS, CY Cergy Paris Université, salle 570


Social networks are a powerful tool for studying complex social processes such as opinion formation, influence and persuasion. This phenomena are important not only for grasping a better understanding of communication in society but also for explaining some of the current threats to democracy and consensus. In fact, the processes that contribute to group formation, as homophily and social reinforcement are the same that produce echo chambers that can threaten diversity and induce the adoption of extreme positions and speech polarization. The electoral period constitutes an excellent case study to investigate the consequences of social structure for democracy and political debate. In this work we analyze a massive capture of 900M tweets involving 2 million users, during the last Argentinian presidential elections of 2019. We define discussion topics from the tweet’s hashtags by constructing a weighted network, and we analyze the evolution of the alignment among different political groups of users during the period. The results are available through an online platforms that allowed to follow the evolution of the dThen we extract conclusions about how these political groups interact and change their behavior in different moments of the electoral period.

Short Bio

Mariano Beiró is an Assistant Researcher at CONICET (National Scientific and Technical Research Council, Argentina) working on computational social science. His main research topics are: human mobility models, opinion formation in social networks, and the relation between psychometric profiles and online behavior. Feel free to dessiminate this announcement to other interested groups. looking forward to seeing all of you on Wednesday,