# Combining a recursive approach via non-negative matrix factorization and Gini index sparsity to improve reliable detection of wheezing sounds

> Research article (Expert Systems with Applications, 2020) · cited 17× · AI/ML

**Wikidata**: [openalex:W2999107315](https://www.wikidata.org/wiki/openalex:W2999107315)  
**Source**: https://4ort.xyz/entity/combining-a-recursive-approach-via-non-negative-matrix-factorization-and-gini-index-sparsity-to-improve-reliable-detecti