Subspace Estimation from Unbalanced and Incomplete Data Matrices: ${\ell }_{2,\infty }$ Statistical Guarantees

Changxiao Cai, Gen Li, Yuejie Chi +2

This paper is concerned with estimating the column space of an unknown low-rank matrix ${\mathbf{A}}^{\star }\in {\mathbb{R}}^{d_1\times d_2}$, given noisy and partial observatio…