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20222026
most citedBounded Projection Matrix Approximation with Applications to Community Detection

1 citations · 2 across the 12 of their papers we have counts for

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3 papers · 1 filter

math.OC2024

Decentralized Online Riemannian Optimization with Dynamic Environments

Hengchao Chen, Qiang Sun

This paper develops the first decentralized online Riemannian optimization algorithm on Hadamard manifolds. Our algorithm, the decentralized projected Riemannian gradient descent,…

math.ST2024

Riemannian radial distributions on Riemannian symmetric spaces: Optimal rates of convergence for parameter estimation

Hengchao Chen

Manifold data analysis is challenging due to the lack of parametric distributions on manifolds. To address this, we introduce a series of Riemannian radial distributions on Riemann…

math.MG2024

Quotient geometry of bounded or fixed rank correlation matrices

Hengchao Chen

This paper studies the quotient geometry of bounded or fixed-rank correlation matrices. We establish a bijection between the set of bounded-rank correlation matrices and a quotient…