The dynamics of group polarization

Carlo Proietti

doi:10.1007/978-3-662-55665-8_14

The dynamics of group polarization

Carlo Proietti

Lund University Information Quality Research Group (LUIQ)

Research output: Chapter in Book/Report/Conference proceeding › Paper in conference proceeding › peer-review

Abstract

Exchange of arguments in a discussion often makes individuals more radical about their initial opinion. This phenomenon is known as Group-induced Attitude Polarization. A byproduct of it are bipolarization effects, where the distance between the attitudes of two groups of individuals increases after the discussion. This paper is a first attempt to analyse the building blocks of information exchange and information update that induce polarization. I use Argumentation Frameworks as a tool for encoding the information of agents in a debate relative to a given issue a. I then adapt a specific measure of the degree of acceptability of an opinion (Matt and Toni 2008). Changes in the degree of acceptability of a, prior and posterior to information exchange, serve here as an indicator of polarization. I finally show that the way agents transmit and update information has a decisive impact on polarization and bipolarization.

Original language	English
Title of host publication	Logic, Rationality, and Interaction
Subtitle of host publication	International Workshop on Logic, Rationality and Interaction
Publisher	Springer
Pages	195-208
Number of pages	14
Volume	10445 LNCS
ISBN (Print)	9783319649993
DOIs	https://doi.org/10.1007/978-3-662-55665-8_14
Publication status	Published - 2017
Event	Logic, Rationality, and Interaction : 6th International Workshop - Sapporo, Japan Duration: 2017 Sept 11 → 2017 Sept 14

Publication series

Name	Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume	10445 LNCS
ISSN (Print)	03029743
ISSN (Electronic)	16113349

Conference

Conference	Logic, Rationality, and Interaction
Abbreviated title	LORI 2017
Country/Territory	Japan
City	Sapporo
Period	2017/09/11 → 2017/09/14

Subject classification (UKÄ)

Philosophy

Access to Document

10.1007/978-3-662-55665-8_14

Rationality and Group Behavior
Proietti, C. (PI)
The Bank of Sweden Tercentenary Foundation: Swedish Foundation for Humanities and Social Science Research
2017/01/01 → 2019/12/31
Project: Research

Cite this

Proietti, C. (2017). The dynamics of group polarization. In Logic, Rationality, and Interaction: International Workshop on Logic, Rationality and Interaction (Vol. 10445 LNCS, pp. 195-208). (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 10445 LNCS). Springer. https://doi.org/10.1007/978-3-662-55665-8_14

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title = "The dynamics of group polarization",

abstract = "Exchange of arguments in a discussion often makes individuals more radical about their initial opinion. This phenomenon is known as Group-induced Attitude Polarization. A byproduct of it are bipolarization effects, where the distance between the attitudes of two groups of individuals increases after the discussion. This paper is a first attempt to analyse the building blocks of information exchange and information update that induce polarization. I use Argumentation Frameworks as a tool for encoding the information of agents in a debate relative to a given issue a. I then adapt a specific measure of the degree of acceptability of an opinion (Matt and Toni 2008). Changes in the degree of acceptability of a, prior and posterior to information exchange, serve here as an indicator of polarization. I finally show that the way agents transmit and update information has a decisive impact on polarization and bipolarization.",

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language = "English",

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volume = "10445 LNCS",

series = "Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)",

publisher = "Springer",

pages = "195--208",

booktitle = "Logic, Rationality, and Interaction",

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note = "Logic, Rationality, and Interaction : 6th International Workshop , LORI 2017 ; Conference date: 11-09-2017 Through 14-09-2017",

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Proietti, C 2017, The dynamics of group polarization. in Logic, Rationality, and Interaction: International Workshop on Logic, Rationality and Interaction. vol. 10445 LNCS, Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), vol. 10445 LNCS, Springer, pp. 195-208, Logic, Rationality, and Interaction , Sapporo, Japan, 2017/09/11. https://doi.org/10.1007/978-3-662-55665-8_14

The dynamics of group polarization. / Proietti, Carlo.
Logic, Rationality, and Interaction: International Workshop on Logic, Rationality and Interaction. Vol. 10445 LNCS Springer, 2017. p. 195-208 (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 10445 LNCS).

Research output: Chapter in Book/Report/Conference proceeding › Paper in conference proceeding › peer-review

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AB - Exchange of arguments in a discussion often makes individuals more radical about their initial opinion. This phenomenon is known as Group-induced Attitude Polarization. A byproduct of it are bipolarization effects, where the distance between the attitudes of two groups of individuals increases after the discussion. This paper is a first attempt to analyse the building blocks of information exchange and information update that induce polarization. I use Argumentation Frameworks as a tool for encoding the information of agents in a debate relative to a given issue a. I then adapt a specific measure of the degree of acceptability of an opinion (Matt and Toni 2008). Changes in the degree of acceptability of a, prior and posterior to information exchange, serve here as an indicator of polarization. I finally show that the way agents transmit and update information has a decisive impact on polarization and bipolarization.

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DO - 10.1007/978-3-662-55665-8_14

M3 - Paper in conference proceeding

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T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)

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PB - Springer

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ER -

The dynamics of group polarization

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Projects

Rationality and Group Behavior

Cite this