# What makes multi-class imbalanced problems difficult? An experimental study

> Research article (Expert Systems with Applications, 2022) · cited 80× · AI/ML

**Wikidata**: [openalex:W4223946313](https://www.wikidata.org/wiki/openalex:W4223946313)  
**Source**: https://4ort.xyz/entity/what-makes-multi-class-imbalanced-problems-difficult-an-experimental-study