# Multi-Scale Permutation Entropy Based on Improved LMD and HMM for Rolling Bearing Diagnosis

> Research article (Entropy, 2017) · cited 146× · AI/ML

**Wikidata**: [openalex:W2606471037](https://www.wikidata.org/wiki/openalex:W2606471037)  
**Source**: https://4ort.xyz/entity/multi-scale-permutation-entropy-based-on-improved-lmd-and-hmm-for-rolling-bearing-diagnosis