# Health Indicator for Predictive Maintenance Based on Fuzzy Cognitive Maps, Grey Wolf, and K-Nearest Neighbors Algorithms

> Research article (Mathematical Problems in Engineering, 2021) · cited 12× · AI/ML

**Wikidata**: [openalex:W3132590431](https://www.wikidata.org/wiki/openalex:W3132590431)  
**Source**: https://4ort.xyz/entity/health-indicator-for-predictive-maintenance-based-on-fuzzy-cognitive-maps-grey-wolf-and-k-nearest-neighbors-algorithms