2 papers
stat.ME2026
Nonparametric undirected graphical model selection using diffusion models
Hyeok Kyu Kwon, Myeonggu Kang, Minwoo Chae +1
Undirected graphical models provide a fundamental framework for representing conditional independence structures among high-dimensional random variables. While undirected graphical…
math.ST2026
Fixed-order PCA: Theory for Overestimated Factor Models
Yuan Liao, Xin Tong, Wanjie Wang +1
We develop asymptotic theory for principal component analysis (PCA) of a high-dimensional factor model in which the working dimension is fixed and only required to satisfy $R \…