Observatorio de I+D+i UPM

Memorias de investigación
Communications at congresses:
Measuring Political Polarization on Twitter Conversations
Year:2015
Research Areas
  • Physics chemical and mathematical,
  • Humanities
Information
Abstract
Political polarization is a social phenomenon that has several consequences in peoples' lives and whose nature is not completely understood. We say that a population is perfectly polarized when divided in two groups of the same size and opposite opinions. Here, we propose a methodology to study and measure the emergence of polarization from social interactions. We begin by proposing a model to estimate opinions in which a minority of influential individuals propagate their opinions through a social network. The result of the model is an opinion probability density function. Next, we propose an index to quantify the extent to which the resulting distribution is polarized. Finally, we apply the proposed methodology to a Twitter conversation about the late Venezuelan president, Hugo Chávez, finding a good agreement between our results and offline data. Hence, we show that our methodology can detect different degrees of polarization, depending on the structure of the network. We demonstrate that the polarization in social media emerges from the influence of opinion leaders that dominate interactions.
International
No
Congress
XX Congreso de Física Estadística (FisEs15) [http://fises15.gefenol.es/]
970
Place
Badajoz (España)
Reviewers
Si
ISBN/ISSN
CDP08UPM
Start Date
05/10/2015
End Date
07/10/2015
From page
7
To page
7
Actas del congreso [http://fises15.gefenol.es/static/files/Libro_Abstracts_FisEs15.pdf]
Participants
  • Autor: Juan Carlos Losada Gonzalez (UPM)
  • Autor: Francisco Javier Borondo Benito (UPM)
  • Autor: Rosa Maria Benito Zafrilla (UPM)
  • Autor: Alfredo Morales Guzmán (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Grupo de Sistemas Complejos
  • Departamento: Ingeniería Agroforestal
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