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Jian-Feng Cai

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#machine learning Preprint Sep 2026

Near-Optimal Nonconvex Matrix Completion

Riemannian gradient descent (RGD) and Riemannian Gauss--Newton (RGN) methods are analyzed, finding that the resulting RGD iterates converge linearly, whereas RGN eventually converges Q-quadratically.

Jian-Feng Cai, Xi-Liang Lu, Juntao You · 0 citations