List questions from sparsity | MathQA

Sparse linear regression via precalculated full designmatrix

Published on 25 Mar 2026 - 9:46

Newton Polytope of a symmetric polynomial with few vertices

Published on 25 Mar 2026 - 9:50

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

Published on 25 Mar 2026 - 9:49

Sparse PCA vs Orthogonal Matching Pursuit

Published on 25 Mar 2026 - 9:48

Differentiable sparsity measure

Published on 06 Apr 2026 - 2:17

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

Published on 25 Mar 2026 - 9:50

Sparse Approximation in the Mahalanobis Distance

Published on 02 May 2026 - 18:04

Group lasso with weighted parameters and L0 norm penalty

Published on 25 Mar 2026 - 11:33

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

Published on 25 Mar 2026 - 9:50

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

Published on 25 Mar 2026 - 9:50

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

Published on 25 Mar 2026 - 9:53