# Graph regularized and sparse nonnegative matrix factorization with hard constraints for data representation

> Research article (Neurocomputing, 2015) · cited 55× · AI/ML

**Wikidata**: [openalex:W1243961807](https://www.wikidata.org/wiki/openalex:W1243961807)  
**Source**: https://4ort.xyz/entity/graph-regularized-and-sparse-nonnegative-matrix-factorization-with-hard-constraints-for-data-representation