C-ISTA: Iterative Shrinkage-Thresholding Algorithm for Sparse Covariance Matrix Estimation. - Wenfu Xia; Ziping Zhao 002; Ying Sun (SSP, 2023)

Distributed Sparse Covariance Matrix Estimation. - Wenfu Xia; Ziping Zhao 002; Ying Sun (SAM, 2024)

Covariance Selection over Networks. - Wenfu Xia; Fengpei Li; Ying Sun; Ziping Zhao 002 (AISTATS, 2025)