2 papers
stat.ME2025
A Graph-based Approach to Estimating the Number of Clusters in High-dimensional Settings
Yichuan Bai, Lynna Chu
We consider the problem of estimating the number of clusters (k) in a dataset. We propose a non-parametric approach to the problem that utilizes similarity graphs to construct a ro…
stat.ME2025
Graph-theoretic Inference for Random Effects in High-dimensional Studies
Lynna Chu, Yichuan Bai
We study the problem of testing for the presence of random effects in mixed models with high-dimensional fixed effects. To this end, we propose a rank-based graph-theoretic approac…