Collective dynamics of opinions and emotions

The emergence of consensus in groups with diverse opinions, or the emergence of collective emotions in online communities are prime examples for the self-organization in social systems. We combine agent-based modeling, experiments with human subjects, data retrieval and analysis from online social platforms to understand such processes.

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Spillover of Antisocial Behavior from Fringe Platforms: The Unintended Consequences of Community Banning

Proceedings of the International AAAI Conference on Web and Social Media - 2023

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Fragmentation from group interactions: A higher-order adaptive voter model

Physica A: Statistical Mechanics and its Applications - 2023

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Social nucleation: Group formation as a phase transition

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The ambiguous role of social influence on the wisdom of crowds: An analytic approach

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An Agent-Based Model of Opinion Polarization Driven by Emotions

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An agent-based model of multi-dimensional opinion dynamics and opinion alignment

Chaos - 2020

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A Weighted Balance Model of Opinion Hyperpolarization

Journal of Artificial Societies and Social Simulation - 2020

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Zooming in: Studying Collective Emotions with Interactive Affective Systems

Cyberemotions: Collective Emotions in Cyberspace - 2017

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Evaluative Patterns and Incentives in YouTube

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An Agent-Based Modeling Framework for Online Collective Emotions

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Agent-Based Simulations of Emotional Dialogs in the Online Social Network MySpace

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When the Filter Bubble Bursts: Collective Evaluation Dynamics in Online Communities

Proceedings of the 8th ACM Conference on Web Science - 2016

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The Dynamics of Emotions in Online Interaction

Royal Society Open Science - 2016

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Emotions, Demographics and Sociability in Twitter Interactions

nternational Conference in Web and Social Media (ICWSM) - 2016

Kristina Lerman, Megha Arora, Luciano Gallegos, Ponnurangam Kumaraguru and David Garcia

The language-dependent relationship between word happiness and frequency

Proceedings of the National Academy of Sciences - 2015

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Social signals and algorithmic trading of Bitcoin

Royal Society Open Science - 2015

David Garcia and Frank Schweitzer

Sentiment cascades in the 15M movement

EPJ Data Science - 2015

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Pro-Anorexia and Anti-Pro-Anorexia Videos on YouTube: Sentiment Analysis of User Responses

Journal of Medical Internet Research - 2015

Atte Oksanen, David Garcia, Anu Sirola, Matti Näsi, Markus Kaakinen, Teo Keipi and Pekka Räsänen

Neighborhood Approximations for Non-Linear Voter Models

Entropy - 2015

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It's a Man's Wikipedia? Assessing Gender Inequality in an Online Encyclopedia

2015

Claudia Wagner, David Garcia, Mohsen Jadidi and Markus Strohmaier

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

Policy and Internet - 2015

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Geography of Emotion: Where in a City are People Happier?

Proceedings of the 25th international World Wide Web conference companion - 2015

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Emotions and Activity Profiles of Influential Users in Product Reviews Communities

Frontiers in Physics - 2015

Dorian Tanase, David Garcia, Antonios Garas and Frank Schweitzer

Becoming popular: Interpersonal emotion regulation predicts relationship formation in real life social networks

Frontiers in Psychology - 2015

Karen Niven, David Garcia, Ilmo Van Der Lowe, David Holman and Warren Mansell

Who Watches ( and Shares ) What on YouTube ? And When ? Using Twitter to Understand YouTube Viewership

In Proceedings of the 7th ACM international conference on Web search and data mining, pages: 593-602 - 2014

Adiya Abisheva, Venkata Rama Kiran Garimella, David Garcia and Ingmar Weber

The Social Dimension of Information Ranking: A Discussion of Research Challenges and Approaches

Socioinformatics - The Social Impact of Interactions between Humans and IT - 2014

Frank Schweitzer, Ingo Scholtes and Rene Pfitzner

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

Journal of the Royal Society Interface - 2014

David Garcia, Claudio Juan Tessone, Pavlin Mavrodiev and Nicolas Perony

Online Privacy as a Collective Phenomenon

ACM - 2014

Emre Sarigol, David Garcia and Frank Schweitzer

Modeling collective emotions in online social systems

Collective Emotions - 2014

David Garcia, Antonios Garas and Frank Schweitzer

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

Proceedings of the International AAAI Conference on Weblogs and Social Media - 2014

David Garcia, Ingmar Weber and Rama Venkata Kiran Garimella

Dissonance minimization as a microfoundation of social influence in models of opinion formation

The Journal of Mathematical Sociology - 2014

Patrick Groeber, Jan Lorenz and Frank Schweitzer

Quantifying the effects of social influence

Scientific Reports - 2013

Pavlin Mavrodiev, Claudio Juan Tessone and Frank Schweitzer

Diversity-induced resonance in the response to social norms

Physical Review E - 2013

Claudio Juan Tessone, Anxo Sanchez and Frank Schweitzer

Political alignment and emotional expression in Spanish Tweets

Workshop on Sentiment Analysis at SEPLN - 2013

David Garcia and Mike Thelwall

Measuring cultural dynamics through the Eurovision song contest

ACS - Advances in Complex Systems - 2013

David Garcia and Dorian Tanase

Enhancing consensus under opinion bias by means of hierarchical decision making

ACS - Advances in Complex Systems - 2013

Nicolas Perony, Rene Pfitzner, Ingo Scholtes, Claudio Juan Tessone and Frank Schweitzer

Dyads to Groups : Modeling Interactions with Affective Dialog Systems

International Journal of Computational Linguistics Research - 2013

Stefan Rank, Marcin Skowron and David Garcia

Damping sentiment analysis in online communication: Discussions, monologs and dialogs

In Proceedings of the 14th international conference on Computational Linguistics and Intelligent Text Processing - 2013

Mike Thelwall, Kevan Buckley, George Paltoglou, Marcin Skowron, David Garcia, Stephane Gobron, Junghyun Ahn, Arvid Kappas, Dennis Kuster and A Janusz

Positive words carry less information than negative words

EPJ Data Science - 2012

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Emotional persistence in online chatting communities

Scientific Reports - 2012

Antonios Garas, David Garcia, Marcin Skowron and Frank Schweitzer

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

In Proceedings of the Proceedings of the first edition workshop on Politics, elections and data - PLEAD '12 - 2012

David Garcia, Fernando Mendez, Uwe Serdult and Frank Schweitzer

Modeling online collective emotions

Proceedings of the 2012 workshop on Data-driven user behavioral modelling and mining from social media-DUBMMSM '12, CIKM2012 - 2012

David Garcia and Frank Schweitzer

Hierarchical consensus formation reduces the influence of opinion bias

In ECMS 2012 - Proceedings of the 26th European Conference on Modelling and Simulation - 2012

Nicolas Perony, Rene Pfitzner, Ingo Scholtes, Frank Schweitzer and Claudio Juan Tessone

Emotional divergence influences information spreading in Twitter

In Proceedings of the 6th International AAAI Conference on Weblogs and Social Media - 2012

Rene Pfitzner, Antonios Garas and Frank Schweitzer

Effects of social influence on the wisdom of crowds

2012

Pavlin Mavrodiev, Claudio Juan Tessone and Frank Schweitzer

An nvc emotional model for conversational virtual humans in a 3d chatting environment

Proceedings of the VII Conference on Articulated Motion and Deformable Objects 2012 - 2012

Junghyun Ahn, Stephane Gobron, David Garcia, Quentin Silvestre, Daniel Thalmann and Ronan Bulic

An event-based architecture to manage virtual human non-verbal communication in 3d chatting environment

Proceedings of the VII Conference on Articulated Motion and Deformable Objects 2012 - 2012

Stephane Gobron, Junghyun Ahn, David Garcia, Quentin Silvestre, Daniel Thalmann and Ronan Boulic

Tweetgames: A framework for Twitter-based collaborative social online games

7th International Conference on Collaborative Computing (CollaborateCom 2011), Orlando, FL, USA - 2011

Markus Esch, Aleksandrina Kovacheva, Ingo Scholtes and Steffen Rothkugel

The wisdom of crowds in one mind : How individuals can simulate the knowledge of diverse societies to reach better decisions

Journal of Mathematical Psychology - 2011

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Reply to Farrell: Improved individual estimation success can imply collective tunnel vision

Proceedings of the National Academy of Sciences (PNAS) - 2011

Heiko Rauhut, Jan Lorenz, Frank Schweitzer and Dirk Helbing

How social influence can undermine the wisdom of crowd effect

Proceedings of the National Academy of Sciences (PNAS) - 2011

Jan Lorenz, Heiko Rauhut, Frank Schweitzer and Dirk Helbing

Emotions in product reviews – empirics and models

IEEE International Conference on Privacy, Security, Risk, and Trust, and IEEE International Conference on Social Computing, PASSAT/SocialCom - 2011

David Garcia and Frank Schweitzer

An agent-based model of collective emotions in online communities

The European Physical Journal B - 2010

Frank Schweitzer and David Garcia

Universality in movie rating distributions

The European Physical Journal B - 2009

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Diversity-induced resonance in a model for opinion formation

The European Physical Journal B - 2009

Claudio Juan Tessone and Raul Toral

Nonlinear voter models: The transition from invasion to coexistence

The European Physical Journal B - 2009

Frank Schweitzer and Laxmidhar Behera

Opinion dynamics: The effect of the number of peers met at once

Journal of Artificial Societies and Social Simulation - 2008

Diemo Urbig and Jan Lorenz

Continuous opinion dynamics under bounded confidence: A survey

International Journal of Modern Physics C - 2007

Jan Lorenz