31 citations · 41 across the 5 of their papers we have counts for
6 papers · 1 filter
Modeling financial transactions via random walks on temporal networks
Carolina E. Mattsson, Claudio Cellerini, Jaume Ojer +1
We model financial transactions as random walks on activity-driven temporal networks. By enforcing fund conservation, our framework analytically derives heavy-tailed distributions…
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…
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…
Social Network Heterogeneity Promotes Depolarization of Multidimensional Correlated Opinions
Jaume Ojer, Michele Starnini, Romualdo Pastor-Satorras
We propose the multidimensional social compass model, based on two competing key ingredients: DeGroot learning, driven by the social influence exerted across multiple topics, and t…
Modeling Explosive Opinion Depolarization in Interdependent Topics
Jaume Ojer, Michele Starnini, Romualdo Pastor-Satorras
Understanding the dynamics of opinion depolarization is pivotal to reducing the political divide in our society. We propose an opinion dynamics model, which we name the social comp…
Flocking dynamics mediated by weighted social networks
Jaume Ojer, Romualdo Pastor-Satorras
We study the effects of animal social networks with a weighted pattern of interactions on the flocking transition exhibited by models of self-organized collective motion. Consideri…