98 citations · 248 across the 25 of their papers we have counts for
30 papers
Conspiracy and Environment Communities on Reddit Sort Along Different Demographic Axes
Miguel Á. Sánchez-Cortés, Corrado Monti, Gianmarco De Francisci Morales
The impact of online platforms in political mobilization is widely documented, yet it remains unclear how it affects different demographic groups. To shed light on this phenomenon,…
Conditional Publics: Shared Events and Divergent Meanings in the European Twitter Debate on the Ukraine War
Corrado Monti, Arthur Capozzi, Yelena Mejova +1
How do European publics debate a geopolitical crisis on social media, and do they inhabit a shared informational reality? We analyze over 38 million geolocated tweets from 20 Europ…
Comparing Data Assimilation and Likelihood-Based Inference on Latent State Estimation in Agent-Based Models
Blas Kolic, Corrado Monti, Gianmarco De Francisci Morales +1
In this paper, we present the first systematic comparison of Data Assimilation (DA) and Likelihood-Based Inference (LBI) in the context of an Agent-Based Model (ABM). These models…
Bias and Identifiability in the Bounded Confidence Model
Claudio Borile, Jacopo Lenti, Valentina Ghidini +2
Opinion dynamics models such as the bounded confidence models (BCMs) describe how a population can reach consensus, fragmentation, or polarization, depending on a few parameters. C…
Learning Individual Behavior in Agent-Based Models with Graph Diffusion Networks
Francesco Cozzi, Marco Pangallo, Alan Perotti +2
Agent-Based Models (ABMs) are powerful tools for studying emergent properties in complex systems. In ABMs, agent behaviors are governed by local interactions and stochastic rules.…
Uncovering the Sociodemographic Fabric of Reddit
Federico Cinus, Corrado Monti, Paolo Bajardi +1
Understanding the sociodemographic composition of online platforms is essential for accurately interpreting digital behavior and its societal implications. Yet, current methods oft…
Causal Modeling of Climate Activism on Reddit
Jacopo Lenti, Luca Maria Aiello, Corrado Monti +1
Climate activism is crucial in stimulating collective societal and behavioral change towards sustainable practices through political pressure. Although multiple factors contribute…
Integrated or Segregated? User Behavior Change after Cross-Party Interactions on Reddit
Yan Xia, Corrado Monti, Barbara Keller +1
It has been a widely shared concern that social media reinforces echo chambers of like-minded users and exacerbate political polarization. While fostering interactions across party…
Likelihood-Based Methods Improve Parameter Estimation in Opinion Dynamics Models
Jacopo Lenti, Corrado Monti, Gianmarco De Francisci Morales
We show that a maximum likelihood approach for parameter estimation in agent-based models (ABMs) of opinion dynamics outperforms the typical simulation-based approach. Simulation-b…
Narratives of War: Ukrainian Memetic Warfare on Twitter
Yelena Mejova, Arthur Capozzi, Corrado Monti +1
The 2022 Russian invasion of Ukraine has seen an intensification in the use of social media by governmental actors in cyber warfare. Wartime communication via memes has been a succ…
Online conspiracy communities are more resilient to deplatforming
Corrado Monti, Matteo Cinelli, Carlo Valensise +2
Online social media foster the creation of active communities around shared narratives. Such communities may turn into incubators for conspiracy theories -- some spreading violent…
The Thin Ideology of Populist Advertising on Facebook during the 2019 EU Elections
Arthur Capozzi, Gianmarco De Francisci Morales, Yelena Mejova +2
Social media has been an important tool in the expansion of the populist message, and it is thought to have contributed to the electoral success of populist parties in the past dec…
Evidence of Demographic rather than Ideological Segregation in News Discussion on Reddit
Corrado Monti, Jacopo D'Ignazi, Michele Starnini +1
We evaluate homophily and heterophily among ideological and demographic groups in a typical opinion formation context: online discussions of current news. We analyze user interacti…
The language of opinion change on social media under the lens of communicative action
Corrado Monti, Luca Maria Aiello, Gianmarco De Francisci Morales +1
Which messages are more effective at inducing a change of opinion in the listener? We approach this question within the frame of Habermas' theory of communicative action, which pos…
Cascade-based Echo Chamber Detection
Marco Minici, Federico Cinus, Corrado Monti +2
Despite echo chambers in social media have been under considerable scrutiny, general models for their detection and analysis are missing. In this work, we aim to fill this gap by p…
On the Relation Between Opinion Change and Information Consumption on Reddit
Flavio Petruzzellis, Corrado Monti, Gianmarco De Francisci Morales +1
While much attention has been devoted to the causes of opinion change, little is known about its consequences. Our study sheds a light on the relationship between one user's opinio…
On learning agent-based models from data
Corrado Monti, Marco Pangallo, Gianmarco De Francisci Morales +1
Agent-Based Models (ABMs) are used in several fields to study the evolution of complex systems from micro-level assumptions. However, ABMs typically can not estimate agent-specific…
A Challenging 7-Fold Tiling Puzzle
Theo P. Schaad
A quasiperiodic 7-fold rhombic tiling is constructed with an iterative substitution scheme. The inflation factor is 5.04892..., the square of the longer diagonal of a regular hepta…
Learning Ideological Embeddings from Information Cascades
Corrado Monti, Giuseppe Manco, Cigdem Aslay +1
Modeling information cascades in a social network through the lenses of the ideological leaning of its users can help understanding phenomena such as misinformation propagation and…
Clandestino or Rifugiato? Anti-immigration Facebook Ad Targeting in Italy
Arthur Capozzi, Gianmarco De Francisci Morales, Yelena Mejova +3
Monitoring advertising around controversial issues is an important step in ensuring accountability and transparency of political processes. To that end, we use the Facebook Ads Lib…
No Echo in the Chambers of Political Interactions on Reddit
Gianmarco De Francisci Morales, Corrado Monti, Michele Starnini
Echo chambers in online social networks, whereby users' beliefs are reinforced by interactions with like-minded peers and insulation from others' points of view, have been decried…
Facebook Ads: Politics of Migration in Italy
Arthur Capozzi, Gianmarco De Francisci Morales, Yelena Mejova +3
Targeted online advertising is on the forefront of political communication, allowing hyper-local advertising campaigns around elections and issues. In this study, we employ a new r…
Learning Opinion Dynamics From Social Traces
Corrado Monti, Gianmarco De Francisci Morales, Francesco Bonchi
Opinion dynamics - the research field dealing with how people's opinions form and evolve in a social context - traditionally uses agent-based models to validate the implications of…
Roots of Trumpism: Homophily and Social Feedback in Donald Trump Support on Reddit
Joan Massachs, Corrado Monti, Gianmarco De Francisci Morales +1
We study the emergence of support for Donald Trump in Reddit's political discussion. With almost 800k subscribers, "r/The_Donald" is one of the largest communities on Reddit, and o…