Piotr Zwiernik

UPF and BSE - on leave


PhD, University of Warwick

Piotr Zwiernik is Assistant Professor at UPF and Associate Research Professor at the Barcelona School of Economics. Prior to this he completed his Marie Skłodowska-Curie International Research Fellowship in the Department of Mathematics at the University of Genoa and the Department of Statistics at UC Berkeley.

Professor Zwiernik works on mathematical aspects of statistical models. His main research interests are: statistical inference, graphical models with hidden variables, algebraic statistics and singular learning theory.

He is Associate Editor of the Scandinavian Journal of Statistics and member of the editorial board of the Journal of Algebraic Statistics.

Awards, Grants, and Honors
  • 2018: BSE Seed Grant, "Gaussian graphical models, total positivity, and Bayesian testing"

Working Papers


Carlos Améndola and Piotr Zwiernik

Likelihood Geometry of Correlation Models

Matematiche, Vol.76, No 2, 559 - 583, October 2021, 10.4418/2021.76.2.16
David Rossell and Piotr Zwiernik

Dependence in elliptical partial correlation graphs

Electronic Journal of Statistics, Vol.15, No 2, 4236-4263 , October 2021, 10.1214/21-EJS1891
Gábor Lugosi, Jakub Truszkowski, Vasiliki Velona and Piotr Zwiernik

Learning partial correlation graphs and graphical models by covariance queries

Journal of Machine Learning Research, Vol.22, September 2021