2 papers
stat.ML2025
Optimal Bias-variance Tradeoff in Matrix and Tensor Estimation
Shivam Kumar, Xiaokai Luo, Haotian Xu +3
We study matrix and tensor denoising when the underlying signal is \textbf{not} necessarily low-rank. In the tensor setting, we observe \[ Y = X^\ast + Z \in \mathbb{R}^{p_1 \times…
stat.ME2024
Estimation and Inference for Change Points in Functional Regression Time Series
Shivam Kumar, Haotian Xu, Haeran Cho +1
In this paper, we study the estimation and inference of change points under a functional linear regression model with changes in the slope function. We present a novel Functional R…