# A constrained tonal semi-supervised non-negative matrix factorization to classify presence/absence of wheezing in respiratory sounds

> Research article (Applied Acoustics, 2019) · cited 18× · AI/ML

**Wikidata**: [openalex:W2996890481](https://www.wikidata.org/wiki/openalex:W2996890481)  
**Source**: https://4ort.xyz/entity/a-constrained-tonal-semi-supervised-non-negative-matrix-factorization-to-classify-presence-absence-of-wheezing-in-respir