# A novel health indicator based on the Lyapunov exponent, a probabilistic self-organizing map, and the Gini-Simpson index for calculating the RUL of bearings

> Research article (Measurement, 2020) · cited 46× · AI/ML

**Wikidata**: [openalex:W3032286497](https://www.wikidata.org/wiki/openalex:W3032286497)  
**Source**: https://4ort.xyz/entity/a-novel-health-indicator-based-on-the-lyapunov-exponent-a-probabilistic-self-organizing-map-and-the-gini-simpson-index-f