# Learning the Hierarchical Parts of Objects by Deep Non-Smooth Nonnegative Matrix Factorization

> Research article (IEEE Access, 2018) · cited 44× · AI/ML

**Wikidata**: [openalex:W2964144157](https://www.wikidata.org/wiki/openalex:W2964144157)  
**Source**: https://4ort.xyz/entity/learning-the-hierarchical-parts-of-objects-by-deep-non-smooth-nonnegative-matrix-factorization