Toward a Formal Model for Group Polarization in Social Networks

Mário S. Alvim; Sophia Knight; Frank Valencia

doi:10.1007/978-3-030-31175-9_24

Toward a Formal Model for Group Polarization in Social Networks

Mário S. Alvim, Sophia Knight, Frank Valencia

Computer Science (Duluth)

Research output: Chapter in Book/Report/Conference proceeding › Chapter

5 Scopus citations

Abstract

In this paper we develop a preliminary model for social networks, and a measure of the level of polarization in these social networks, based on Esteban and Ray’s classic measure of polarization for economic situations. Our model includes information about each agent’s quantitative strength of belief in a proposition of interest and a representation of the strength of each agent’s influence on every other agent. We consider how the model changes over time as agents interact and communicate, and include several different options for belief update, including rational belief update and update taking into account irrational responses such as confirmation bias and the backfire effect. Under various scenarios, we consider the evolution of polarization over time, and the implications of these results for real world social networks.

Original language	English (US)
Title of host publication	Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Publisher	Springer Verlag
Pages	419-441
Number of pages	23
DOIs	https://doi.org/10.1007/978-3-030-31175-9_24
State	Published - 2019

Publication series

Name	Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume	11760 LNCS
ISSN (Print)	0302-9743
ISSN (Electronic)	1611-3349

Bibliographical note

Funding Information:
Mário S. Alvim was partially supported by the National Council for Scientific and Technological Development (CNPq), CAPES, and FAPEMIG. Frank Valencia has been partially supported by the ECOS-NORD project FACTS (C19M03).

Publisher Copyright:
© 2019, Springer Nature Switzerland AG.

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Alvim, M. S., Knight, S., & Valencia, F. (2019). Toward a Formal Model for Group Polarization in Social Networks. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (pp. 419-441). (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 11760 LNCS). Springer Verlag. https://doi.org/10.1007/978-3-030-31175-9_24

Toward a Formal Model for Group Polarization in Social Networks. / Alvim, Mário S.; Knight, Sophia; Valencia, Frank.
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). Springer Verlag, 2019. p. 419-441 (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 11760 LNCS).

Research output: Chapter in Book/Report/Conference proceeding › Chapter

Alvim, MS, Knight, S & Valencia, F 2019, Toward a Formal Model for Group Polarization in Social Networks. in Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), vol. 11760 LNCS, Springer Verlag, pp. 419-441. https://doi.org/10.1007/978-3-030-31175-9_24

Alvim MS, Knight S, Valencia F. Toward a Formal Model for Group Polarization in Social Networks. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). Springer Verlag. 2019. p. 419-441. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)). doi: 10.1007/978-3-030-31175-9_24

Alvim, Mário S. ; Knight, Sophia ; Valencia, Frank. / Toward a Formal Model for Group Polarization in Social Networks. Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). Springer Verlag, 2019. pp. 419-441 (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)).

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Toward a Formal Model for Group Polarization in Social Networks

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