Vaccination debates are central to online public health communication, as COVID-19 intensified disputes over scientific authority, institutional trust, and political identity. Yet studies often isolate semantic structure, stance, misinformation, and engagement, leaving their interplay over time poorly understood. We co...
Matheus S. Azevedo, Geovana S. de Oliveira, Andrea Failla et al.· 0 citations
Personalized social media commonly relies on explicit follow graphs to shape what content users encounter; yet how much attention crosses ties they have not formed remains largely undocumented at scale. We study this question on Bluesky, a large decentralized microblogging platform whose default feed relies on a simple...
Andrea Failla, Veronica Mesina, Giulio Rossetti· 0 citations
The findings show that the collective dynamics of LLM populations arise from interactions among model-specific behavior, network structure, population composition, and local social information, and that the choice of LLM substantially affects the resulting dynamics.
Erica Cau, Andrea Failla, Giulio Rossetti· 0 citations
Online platforms have become arenas for the public contestation of climate change, shaping how scientific knowledge, denial, and uncertainty are expressed and disputed. Yet longitudinal evidence remains limited for YouTube, especially for Portuguese-language discourse. Addressing this gap, we characterize how climate s...
Daniel Morais, D. H. M. Magalhães, Gabriel H. Silva et al.· 0 citations
A large-scale empirical analysis of more than 50,000 English-language starter packs and over 600,000 associated users shows that starter packs form a highly interconnected ecosystem with substantial overlap across packs that largely reflects pre-existing communities.
Andrea Failla, V. L. S. Freitas, Giulio Rossetti et al.· 1 citation
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