activity
20162026
most citedThe COVID-19 Social Media Infodemic

1.7k citations · 3.5k across the 48 of their papers we have counts for

collaborators

53 papers

cs.SI2026

Optimal and heuristic strategies for evaluating the influence of coordinated behavior in information cascades and retweet networks

Niccolò Di Marco, Matteo Cinelli, Shinichi Nakano +1

Coordinated Inauthentic Behavior (CIB) has become a major concern in online social platforms, yet its actual impact on information diffusion remains poorly understood. Existing res…

cs.SI2026

Reddit's Globalization over Twenty Years: Inferring Community Time Zone from Activity Timestamps

Franco Della Negra, Mattia Samory, Matteo Cinelli

Online communities are a global phenomenon, but assessing their actual geographical spread requires accurate and scalable measurement. We propose and evaluate methods that infer th…

cs.SI2026

Hyperactive Minority Alters the Stability of Community Notes

Jacopo Nudo, Eugenio Nerio Nemmi, Edoardo Loru +3

As platforms increasingly scale down professional fact-checking, community-based alternatives are promoted as more transparent and democratic. The main substitute being proposed is…

cs.CY2026

Wikipedia and Grokipedia: A Comparison of Human and Generative Encyclopedias

Ortal Hadad, Edoardo Loru, Jacopo Nudo +3

We present a comparative analysis of Wikipedia and Grokipedia to examine how generative mediation alters content selection, textual rewriting, narrative structure, and evaluative f…

cs.SI2025

Patterns, Models, and Challenges in Online Social Media: A Survey

Niccolò Di Marco, Anita Bonetti, Edoardo Di Martino +10

The rise of digital platforms has enabled the large scale observation of individual and collective behavior through high resolution interaction data. This development has opened ne…

cs.HC2025★ 1 cited

Generative Exaggeration in LLM Social Agents: Consistency, Bias, and Toxicity

Jacopo Nudo, Mario Edoardo Pandolfo, Edoardo Loru +3

We investigate how Large Language Models (LLMs) behave when simulating political discourse on social media. Leveraging 21 million interactions on X during the 2024 U.S. presidentia…