activity
20222026
most citedFrom mean-field to complex topologies: network effects on the algorithmic bias model

8 citations · 19 across the 10 of their papers we have counts for

collaborators

11 papers

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

Joint Effects of Recommender Systems and Network Structure on the Visibility of Content and Creators

Virginia Morini, Valentina Pansanella, Luca Pappalardo +2

Social media algorithms allocate users' visibility by ranking content within their social networks. Yet, how recommendation logic and network structure jointly shape visibility acr…

cs.SI2026

Quantifying opinion homophily in online social networks: A bounded confidence perspective

Yangyang Luan, Camilla Ancona, Carmela Bernardo +6

The concept of homophily is pervasive in online social media. While many empirical studies have relied on external sociodemographic traits to investigate it, significantly less is…

econ.GN2025

Navigating the Lobbying Landscape: Insights from Opinion Dynamics Models

Daniele Giachini, Leonardo Ciambezi, Verdiana Del Rosso +4

While lobbying has been demonstrated to have an important effect on public opinion and policy making, existing models of opinion formation do not specifically include its effect. I…

cs.SI2025

Language-Driven Opinion Dynamics in Agent-Based Simulations with LLMs

Erica Cau, Valentina Pansanella, Dino Pedreschi +1

Understanding how opinions evolve is crucial for addressing issues such as polarization, radicalization, and consensus in social systems. While much research has focused on identif…

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.IR2024★ 5 cited

A survey on the impacts of recommender systems on users, items, and human-AI ecosystems

Luca Pappalardo, Salvatore Citraro, Giuliano Cornacchia +12

Recommendation systems and assistants (in short, recommenders) influence through online platforms most actions of our daily lives, suggesting items or providing solutions based on…

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.SI2023★ 3 cited

Beyond Active Engagement: The Significance of Lurkers in a Polarized Twitter Debate

Anees Baqir, Yijing Chen, Fernando Diaz-Diaz +6

The emergence of new public forums in the shape of online social media has introduced unprecedented challenges to public discourse, including polarization, misinformation, and the…

cs.SI2022

Change my Mind: Data Driven Estimate of Open-Mindedness from Political Discussions

Valentina Pansanella, Virginia Morini, Tiziano Squartini +1

One of the main dimensions characterizing the unfolding of opinion formation processes in social debates is the degree of open-mindedness of the involved population. Opinion dynami…

cs.SI2022★ 8 cited

From mean-field to complex topologies: network effects on the algorithmic bias model

Valentina Pansanella, Giulio Rossetti, Letizia Milli

Nowadays, we live in a society where people often form their opinion by accessing and discussing contents shared on social networking websites. While these platforms have fostered…