Tag
sparsity
- Sep 4, 2025 Sparse Sampling and the Limits of Recovery Why a sub-Nyquist sample count can still determine a sparse signal, what the restricted isometry property guarantees, and where the guarantee stops being useful. scientific computing
- Mar 12, 2023 Projected and Proximal Gradient Methods for Composite Objectives How constraint sets and non-differentiable penalties are handled by composing a gradient step with a projection or a proximal operator, and what the convergence rates assume. machine learning