# Nonconvex Sorted $$\ell _1$$ ℓ 1 Minimization for Sparse Approximation

> Research article (Journal of the Operations Research Society of China, 2015) · cited 21× · AI/ML

**Wikidata**: [openalex:W1989834782](https://www.wikidata.org/wiki/openalex:W1989834782)  
**Source**: https://4ort.xyz/entity/nonconvex-sorted-ell-1-l-1-minimization-for-sparse-approximation