activity
20232026
most cited"I'm in the Bluesky Tonight": Insights from a Year Worth of Social Data

19 citations · 22 across the 12 of their papers we have counts for

collaborators

15 papers

cs.HC2026

Incremental Retrieval-Augmented Generation for Human-in-the-Loop Decision Support

Federico Mazzoni, Andrea Failla

We introduce iRAG, a human-in-the-loop decision-support system combining Retrieval-Augmented Generation (RAG) with Hybrid Decision-Making. Unlike conventional RAG systems, relying…

cs.SI2026

Benchmarking System One Models in Online Moderation

Federico Mazzoni, Andrea Failla

Online moderation systems must apply changing platform policies, community rules, and prior decisions while producing decisions that can be audited and routed to human review. We e…

cs.SI2026

Out-of-Network Attention Dynamics on Bluesky

Andrea Failla, Veronica Mesina, Giulio Rossetti

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…

cs.SI2026

A Decade of Climate Polarization on Brazilian YouTube using Language Models

Daniel Morais, Diego H. M. Magalhaes, Gabriel H. Silva +4

Online platforms have become arenas for the public contestation of climate change, shaping how scientific knowledge, denial, and uncertainty are expressed and disputed. Yet longitu…

cs.SI2026

The Brazilian Vaccination Debate on YouTube: Topics, Perspectives, and Engagement Dynamics

Matheus S. Azevedo, Geovana S. de Oliveira, Andrea Failla +4

Vaccination debates are central to online public health communication, as COVID-19 intensified disputes over scientific authority, institutional trust, and political identity. Yet…

cs.SI2026

Structure, Topics, and Diffusion Effects of Bluesky Starter Packs

Andrea Failla, Vander Freitas, Giulio Rossetti +1

User discovery is a central challenge in online social platforms, particularly during onboarding. Bluesky, a decentralized microblogging platform built on the AT Protocol, introduc…

cs.MA2026

Social Simulations: from Agent-Based Modeling to Digital Twins

Erica Cau, Andrea Failla, Valentina Pansanella +1

This book chapter covers the evolution of social simulation from classical agent-based models, in which agents interact according to explicitly defined behavioral rules, to AI-enha…

cs.SI2026

Low-Vocality Engagement Shapes Online Participation

Veronica Mesina, Andrea Failla, Luca Pappalardo +1

Online participation is often measured through visible expression, especially posting, yet many consequential forms of engagement occur through less vocal actions such as liking an…

cs.SI2026

Collective Opinion Dynamics in Structured LLM Populations

Erica Cau, Andrea Failla, Giulio Rossetti

Large Language Models are increasingly deployed as interacting agents in settings such as online platforms, recommendation systems, and multi-agent applications. Understanding the…

cs.AI2024★ 3 cited

Y Social: an LLM-powered Social Media Digital Twin

Giulio Rossetti, Massimo Stella, Rémy Cazabet +7

In this paper we introduce Y, a new-generation digital twin designed to replicate an online social media platform. Digital twins are virtual replicas of physical systems that allow…

cs.SI2024

Characterizing User Archetypes and Discussions on Scored.co

Andrea Failla, Salvatore Citraro, Giulio Rossetti +1

In recent years, the proliferation of social platforms has drastically transformed the way individuals interact, organize, and share information. In this scenario, we experience an…

cs.SI2024★ 19 cited

"I'm in the Bluesky Tonight": Insights from a Year Worth of Social Data

Andrea Failla, Giulio Rossetti

Pollution of online social spaces caused by rampaging d/misinformation is a growing societal concern. However, recent decisions to reduce access to social media APIs are causing a…

cs.SI2024

From Perils to Possibilities: Understanding how Human (and AI) Biases affect Online Fora

Virginia Morini, Valentina Pansanella, Katherine Abramski +4

Social media platforms are online fora where users engage in discussions, share content, and build connections. This review explores the dynamics of social interactions, user-gener…

cs.LG2024

Redefining Event Types and Group Evolution in Temporal Data

Andrea Failla, Rémy Cazabet, Giulio Rossetti +1

Groups -- such as clusters of points or communities of nodes -- are fundamental when addressing various data mining tasks. In temporal data, the predominant approach for characteri…

cs.SI2023

Attributed Stream Hypergraphs: temporal modeling of node-attributed high-order interactions

Andrea Failla, Salvatore Citraro, Giulio Rossetti

Recent advances in network science have resulted in two distinct research directions aimed at augmenting and enhancing representations for complex networks. The first direction, th…