3 papers
math.ST2026
Minimax and adaptive estimation of general linear functionals under sparsity
Jie Xie, Dongming Huang
We study nonasymptotic minimax estimation of the linear functional for a high-dimensional -sparse mean vector with an arbitrary loading vector . For symme…
stat.ME2025
A Generalized Framework for Approximate Co-Sufficient Sampling
Jie Xie, Dongming Huang
Approximate co-sufficient sampling (aCSS) offers a principled route to hypothesis testing when null distributions are unknown, yet current implementations are confined to maximum l…
stat.ME2025
Testing Multivariate Conditional Independence Using Exchangeable Sampling and Sufficient Statistics
Xiaotong Lin, Jie Xie, Fangqiao Tian +1
We consider testing multivariate conditional independence between a response Y and a covariate vector X given additional variables Z. We introduce the Multivariate Sufficient Stati…