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math.OC2026
A Unified Framework for Randomized Row-Action Methods for Structured Data Fitting and Constraint Geometry
Valentin Leplat, Zeyu Dong, Junfeng Yin
We study randomized row-action methods for problems with linear observations, convex constraints, and non-Euclidean geometry. Our starting point is a unified formulation in which t…
math.NA2026
Randomized average block coordinate descent method with heavy-ball momentum for tensor least squares problem under the t-product
Li-Lin Ji, Ni-Hong Ke, Jun-Feng Yin
A tensor randomized average block coordinate descent method with heavy-ball momentum is proposed for the tensor least squares problem with respect to the t-product. Theoretical ana…
math.NA2026
Adaptive Randomized Extended Bregman-Kaczmarz Method for Combined Optimization Problems
Zeyu Dong, Aqin Xiao, Guojian Yin +1
Combined optimization problems that couple data-fidelity and regularization terms arise naturally in a wide range of inverse problems. In this paper, we study an adaptive randomize…