# A novel unsupervised directed hierarchical graph network with clustering representation for intelligent fault diagnosis of machines

> Research article (Mechanical Systems and Signal Processing, 2022) · cited 51× · AI/ML

**Wikidata**: [openalex:W4291237914](https://www.wikidata.org/wiki/openalex:W4291237914)  
**Source**: https://4ort.xyz/entity/a-novel-unsupervised-directed-hierarchical-graph-network-with-clustering-representation-for-intelligent-fault-diagnosis-