4 papers
Positive Definite Kernels and Random Sequences Connected to Polynomial Hypergroups
Volker Hösel
This work explores new classes of nonstationary stochastic sequences associated with polynomial hypergroups. Their covariance structures are analyzed through positive definite kern…
Opinion models, data, and politics
Matthias Gsänger, Volker Hösel, Christoph Mohamad-Klotzbach +1
We investigate the connection between Potts (Curie-Weiss) models and stochastic opinion models in the view of the Boltzmann distribution and stochastic Glauber dynamics. We particu…
Filter Bubbles, Echo Chambers, and Reinforcement: Tracing Populism in Election Data
Johannes Müller, Volker Hösel, Aurélien Tellier
We present a novel model for the effect of echo chambers, filter bubbles, and reinforcement on election results. Our model extends the well known voter model with zealots to includ…
Do voters choose rationally, irrationally or at random? Data and theory for proportional elections
Volker Hösel, Johannes Müller, Aurélien Tellier
Data of proportional elections show a striking feature: If the parties are ranked according to the number of their voters, the number of votes grows exponentially with the rank of…