# All sparse PCA models are wrong, but some are useful. Part II: Limitations and problems of deflation

> Research article (Chemometrics and Intelligent Laboratory Systems, 2020) · cited 10× · AI/ML

**Wikidata**: [openalex:W3112382139](https://www.wikidata.org/wiki/openalex:W3112382139)  
**Source**: https://4ort.xyz/entity/all-sparse-pca-models-are-wrong-but-some-are-useful-part-ii-limitations-and-problems-of-deflation