List questions from sparsity | MathQA

Sparse linear regression via precalculated full designmatrix

Published on 26 May 2021 - 12:34

Newton Polytope of a symmetric polynomial with few vertices

Published on 18 Jun 2021 - 8:48

Mutual coherence of two orthonormal bases, bound on number of non-zero entries

Published on 19 Jul 2021 - 14:26

Sparse PCA vs Orthogonal Matching Pursuit

Published on 27 Jul 2021 - 13:05

Differentiable sparsity measure

Published on 30 Jul 2021 - 10:10

What are the benefits of having fewer non-zero entries in the Cholesky decomposition of a matrix?

Published on 21 Aug 2021 - 18:10

Sparse Approximation in the Mahalanobis Distance

Published on 23 Feb 2026 - 3:24

Group lasso with weighted parameters and L0 norm penalty

Published on 18 Jun 2022 - 10:05

Show that the $\ell_p$ norm of $x$ as $p \to 0$ is the support of $x$

Published on 13 Aug 2022 - 10:03

Minimizing the number of non zero columns of a linear subspace of matrices

Published on 26 Oct 2022 - 0:24

In compressive sensing, what is the optimal dimension of the measurement matrix?

Published on 18 Nov 2022 - 5:17