Distributed Sparse Multicategory Discriminant Analysis. - Hengchao Chen; Qiang Sun (AISTATS, 2022)

Statistical Analysis of Karcher Means for Random Restricted PSD Matrices. - Hengchao Chen; Xiang Li; Qiang Sun (AISTATS, 2023)

Bounded Projection Matrix Approximation With Applications to Community Detection. - Zheng Zhai; Hengchao Chen; Qiang Sun (IEEE Signal Process. Lett., 2023)

Gradient descent in matrix factorization: Understanding large initialization. - Hengchao Chen; Xin Chen; Mohamad Elmasri; Qiang Sun (UAI, 2024)

Quadratic Matrix Factorization With Applications to Manifold Learning. - Zheng Zhai; Hengchao Chen; Qiang Sun (IEEE Trans. Pattern Anal. Mach. Intell., 2024)

Quotient Geometry of Bounded or Fixed-Rank Correlation Matrices. - Hengchao Chen (SIAM J. Matrix Anal. Appl., 2025)

Power Transformed Density Ridge Estimation. - Hengchao Chen; Zheng Zhai (IEEE Signal Process. Lett., 2025)

Enhancing Vector Quantization with Distributional Matching: A Theoretical and Empirical Study. - Xianghong Fang; Litao Guo; Hengchao Chen; Yuxuan Zhang; XiaofanXia; Dingjie Song; Yexin Liu; Hao Wang; Harry Yang; Yuan Yuan; Qiang Sun (CoRR, 2025)