10 papers
Modeling individual attention dynamics on online social media
Jaume Ojer, Filippo Radicchi, Santo Fortunato +2
In the attention economy, understanding how individuals manage limited attention is critical. We introduce a simple model describing the decay of a user's engagement when facing mu…
Data-Driven Stochastic Modeling of Schooling Fish: From Collective Dynamics to Individual Fluctuations
Elena G. de Lamo, M. Carmen Miguel, Romualdo Pastor-Satorras
Collective motion in animal groups emerges from the interplay between individual variability and social coordination, yet connecting these scales quantitatively has remained a majo…
Group size effects and collective misalignment in LLM multi-agent systems
Ariel Flint, Luca Maria Aiello, Romualdo Pastor-Satorras +1
Multi-agent systems of large language models (LLMs) are rapidly expanding across domains, introducing dynamics not captured by single-agent evaluations. Yet, existing work has most…
Symmetry breaking in collective decision-making through higher-order interactions
David March-Pons, Romualdo Pastor-Satorras, M. Carmen Miguel
Collective decision-making is a widespread phenomenon in both biological and artificial systems, where individuals reach a consensus through social interactions. While traditional…
Non-linear inhibitory responses enhance performance in collective decision-making
David March-Pons, Romualdo Pastor-Satorras, M. Carmen Miguel
The precise modulation of activity through inhibitory signals ensures that both insect colonies and neural circuits operate efficiently and adaptively, highlighting the fundamental…
Charting multidimensional ideological polarization across demographic groups in the United States
Jaume Ojer, David Cárcamo, Romualdo Pastor-Satorras +1
Has ideological polarization actually increased in the last decades, or have voters simply sorted themselves into parties matching their ideology more closely? We present a novel m…