# Use of PALM for ℓ1 sparse matrix factorization: Difficulty and rationalization of a two-step approach

> Research article (Digital Signal Processing, 2019) · cited 11× · AI/ML

**Wikidata**: [openalex:W2987491933](https://www.wikidata.org/wiki/openalex:W2987491933)  
**Source**: https://4ort.xyz/entity/use-of-palm-for-l1-sparse-matrix-factorization-difficulty-and-rationalization-of-a-two-step-approach