Author

Jing Qin

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Preprint Aug 2026

Robust Low-Tubal-Rank Tensor Completion under Cross-Concentrated Sampling

Tensor cross-concentrated sampling (t-CCS) bridges entrywise sampling and t-CUR slice-wise sampling by observing entries only within selected horizontal and lateral slices. Existing t-CCS completion methods, however, assume that the observations are free of gross corruption. In this work, we study robust recovery of a...

Hanqin Cai, Longxiu Huang, Jing Qin et al. · 0 citations

#machine learning Preprint Aug 2026

Separable Nonnegative Matrix Factorization Using Powered Ratio-of-Norms Regularization

This work develops efficient algorithms based on the difference-of-convex function algorithm (DCA) and the alternating direction method of multipliers (ADMM) to enhance sparsity and identifiability of the learned factors in separable nonnegative matrix factorization.

Matthew McCarver, Jing Qin · 0 citations