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math.ST2026
Minimax prediction in the Functional Autoregressive Model
André Mas, Angelina Roche
The Functional Autoregressive Model (FAR) generalizes the multivariate AR(1) model in Time Series Analysis to functional data. It serves as a historical foundational point in the s…
math.ST2026
Minimax estimation of Functional Principal Components from noisy discretized functional data: the case of smooth processes
Nassim Bourarach, Franck Picard, Vincent Rivoirard +1
We study the minimax estimation of covariance eigenfunctions and eigenvalues in functional principal component analysis when trajectories are observed at common grid points…
math.ST2025
PCA for Point Processes
Franck Picard, Vincent Rivoirard, Angelina Roche +1
We introduce a novel statistical framework for the analysis of replicated point processes that allows for the study of point pattern variability at a population level. By treating…