202 citations · 1.5k across the 41 of their papers we have counts for
5 papers · 1 filter
Opinion dynamics with memory: how a society is shaped by its own past
Gioia Boschi, Chiara Cammarota, Reimer Kühn
In order to understand the development of common orientation of opinions in the modern world we propose a model of a society described as a large collection of agents that exchange…
Who is Afraid of Big Bad Minima? Analysis of Gradient-Flow in a Spiked Matrix-Tensor Model
Stefano Sarao Mannelli, Giulio Biroli, Chiara Cammarota +2
Gradient-based algorithms are effective for many machine learning tasks, but despite ample recent effort and some progress, it often remains unclear why they work in practice in op…
Who has the last word? Understanding How to Sample Online Discussions
Gioia Boschi, Anthony P. Young, Sagar Joglekar +2
In online debates individual arguments support or attack each other, leading to some subset of arguments being considered more relevant than others. However, in large discussions r…
How to iron out rough landscapes and get optimal performances: Averaged Gradient Descent and its application to tensor PCA
Giulio Biroli, Chiara Cammarota, Federico Ricci-Tersenghi
In many high-dimensional estimation problems the main task consists in minimizing a cost function, which is often strongly non-convex when scanned in the space of parameters to be…
Numerical implementation of dynamical mean field theory for disordered systems: application to the Lotka-Volterra model of ecosystems
Felix Roy, Giulio Biroli, Guy Bunin +1
Dynamical mean field theory (DMFT) is a tool that allows to analyze the stochastic dynamics of interacting degrees of freedom in terms of a self-consistent -body problem. In…