# Two new collaborative filtering approaches to solve the sparsity problem

> Research article (Cluster Computing, 2020) · cited 23× · AI/ML

**Wikidata**: [openalex:W3045147512](https://www.wikidata.org/wiki/openalex:W3045147512)  
**Source**: https://4ort.xyz/entity/two-new-collaborative-filtering-approaches-to-solve-the-sparsity-problem