4 papers · 1 filter
Metastability and phase transition in a social network model with multiple opinions
Felipe Penafiel, Kádmo Laxa
We consider a stochastic opinion dynamics model on a fully connected social network with actors interacting by expressing opinions from a set of opinions. At any time $t\ge…
The Pathwise Approach to Metastability and its Applications to Galves--Löcherbach Models
Morgan André, Kádmo Laxa
Metastability is the tendency of a system to dwell for a very long time near an apparently stable equilibrium before a rare fluctuation drives it, on a comparatively short time sca…
Nonparametric estimation of the jump rate in mean field interacting systems of neurons
Aline Duarte, Kadmo Laxa, Eva Löcherbach +2
We consider finite systems of interacting neurons described by non-linear Hawkes processes in a mean field frame. Neurons are described by their membrane potential. They spike…
A new look at perfect simulation for chains with infinite memory
Emilio De Santis, Kádmo Laxa, Eva Löcherbach
In this article we introduce two new perfect simulation algorithms for chains with infinite memory. Both algorithms belong to the coupling of past procedures. The novelty of our ap…