3 papers
stat.ME2026
Multiple change-point detection on the circle via isolation using permutation testing
Sophia Loizidou, Andreas Anastasiou, Christophe Ley
In this paper we propose a new method for multiple change-point detection for piecewise-constant circular signals, a setting that, despite its importance in many scientific domains…
math.ST2025
Construction of optimal tests for symmetry on the torus and their quantitative error bounds
Andreas Anastasiou, Christophe Ley, Sophia Loizidou
In this paper, we develop optimal tests for symmetry on the hyper-dimensional torus, leveraging Le Cam's methodology. We address both scenarios where the center of symmetry is know…
math.ST2025
Non-parametric multiple change-point detection
Andreas Anastasiou, Piotr Fryzlewicz
We introduce a methodology, labelled Non-Parametric Isolate-Detect (NPID), for the consistent estimation of the number and locations of multiple change-points in a non-parametric s…