# Spatial Information Entropy and Its Application in the Degradation State Identification of Hydraulic Pump

> Research article (Mathematical Problems in Engineering, 2015) · cited 12× · AI/ML

**Wikidata**: [openalex:W2142318867](https://www.wikidata.org/wiki/openalex:W2142318867)  
**Source**: https://4ort.xyz/entity/spatial-information-entropy-and-its-application-in-the-degradation-state-identification-of-hydraulic-pump