# A novel intelligent method for inter-shaft bearing-fault diagnosis based on hierarchical permutation entropy and LLE-RF

> Research article (Journal of Vibration and Control, 2022) · cited 17× · AI/ML

**Wikidata**: [openalex:W4306881231](https://www.wikidata.org/wiki/openalex:W4306881231)  
**Source**: https://4ort.xyz/entity/a-novel-intelligent-method-for-inter-shaft-bearing-fault-diagnosis-based-on-hierarchical-permutation-entropy-and-lle-rf