Search Results for author: Simon Vary

Found 3 papers, 1 papers with code

Infeasible Deterministic, Stochastic, and Variance-Reduction Algorithms for Optimization under Orthogonality Constraints

no code implementations29 Mar 2023 Pierre Ablin, Simon Vary, Bin Gao, P. -A. Absil

Finally, our experiments demonstrate the promise of our approach to an array of machine-learning problems that involve orthogonality constraints.

Riemannian optimization

Compressed sensing of low-rank plus sparse matrices

2 code implementations18 Jul 2020 Jared Tanner, Simon Vary

This manuscript develops similar guarantees showing that $m\times n$ matrices that can be expressed as the sum of a rank-$r$ matrix and a $s$-sparse matrix can be recovered by computationally tractable methods from $\mathcal{O}(r(m+n-r)+s)\log(mn/s)$ linear measurements.

Matrix Completion

Multispectral snapshot demosaicing via non-convex matrix completion

no code implementations28 Feb 2019 Giancarlo A. Antonucci, Simon Vary, David Humphreys, Robert A. Lamb, Jonathan Piper, Jared Tanner

Snapshot mosaic multispectral imagery acquires an undersampled data cube by acquiring a single spectral measurement per spatial pixel.

Demosaicking Matrix Completion

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