Relationship between the optimal solutions of least squares regularized with ℓ0-norm and constrained by k-sparsity - Nikolova, Mila (Applied and computational harmonic analysis, 2016)
Keywords: [formula omitted]-regularization; Computer Science; Engineering Sciences; Globally optimal solutions; k-sparsity constraint; Mathematics; Numerical Analysis; Optimal solution analysis; Parameter selection; Quasi-equivalence between nonconvex problems; Signal and Image processing; Sparse recovery; Under-determined linear systems; Optimal solution analysis; Globally optimal solutions; Under-determined linear systems; Quasi-equivalence between nonconvex problems; Parameter selection; Sparse recovery; ℓ0-regularization; k-sparsity constraint; optimal solution analysis; globally optimal solutions; sparse recovery; quasi-equivalence between nonconvex problems; L0 -regularization; under-determined linear systems; parameter selection