# Intelligent fault diagnosis method of common rail injector based on composite hierarchical dispersion entropy and improved least squares support vector machine

> Research article (Digital Signal Processing, 2021) · cited 20× · AI/ML

**Wikidata**: [openalex:W3156719961](https://www.wikidata.org/wiki/openalex:W3156719961)  
**Source**: https://4ort.xyz/entity/intelligent-fault-diagnosis-method-of-common-rail-injector-based-on-composite-hierarchical-dispersion-entropy-and-improv