# A novel constrained non-negative matrix factorization method based on users and items pairwise relationship for recommender systems

> Research article (Expert Systems with Applications, 2022) · cited 19× · AI/ML

**Wikidata**: [openalex:W4212845585](https://www.wikidata.org/wiki/openalex:W4212845585)  
**Source**: https://4ort.xyz/entity/a-novel-constrained-non-negative-matrix-factorization-method-based-on-users-and-items-pairwise-relationship-for-recommen