3 papers
math.ST2019
Optimality of testing procedures for survival data
Andrea Arfé, Brian Alexander, Lorenzo Trippa
Most statistical tests for treatment effects used in randomized clinical trials with survival outcomes are based on the proportional hazards assumption, which often fails in practi…
math.ST2018
The semi-Markov beta-Stacy process: a Bayesian non-parametric prior for semi-Markov processes
Andrea Arfè, Stefano Peluso, Pietro Muliere
The literature on Bayesian methods for the analysis of discrete-time semi-Markov processes is sparse. In this paper, we introduce the semi-Markov beta-Stacy process, a stochastic p…
math.ST2018
Reinforced urns and the subdistribution beta-Stacy process prior for competing risks analysis
Andrea Arfé, Stefano Peluso, Pietro Muliere
In this paper we introduce the subdistribution beta-Stacy process, a novel Bayesian nonparametric process prior for subdistribution functions useful for the analysis of competing r…