3 papers
stat.ME2026
Alignment and matching tests for high-dimensional tensor signals via tensor contraction
Ruihan Liu, Zhenggang Wang, Jianfeng Yao
We consider two hypothesis testing problems for low-rank and high-dimensional tensor signals, namely the tensor signal alignment and tensor signal matching problems. These problems…
stat.ME2026
Deviation Tests for a High-dimensional Mean
Zengjing Chen, Ruihan Liu, Jianfeng Yao
This paper investigates testing for deviation of a high-dimensional mean vector . In contrast to the standard one-sample significance test of the form: $H_0^\texttt{e…
stat.ME2025
Testing High-dimensional Nonstationary Time Series
Ruihan Liu, Chen Wang
In this article, we first establish the joint central limit theorem (CLT) for the extreme eigenvalues of the sample correlation matrix of high-dimensional random walks with cross-s…