# Multi-variable classification model for valve internal leakage based on acoustic emission time–frequency domain characteristics and random forest

> Research article (Review of Scientific Instruments, 2021) · cited 14× · AI/ML

**Wikidata**: [openalex:W3126290191](https://www.wikidata.org/wiki/openalex:W3126290191)  
**Source**: https://4ort.xyz/entity/multi-variable-classification-model-for-valve-internal-leakage-based-on-acoustic-emission-timefrequency-domain-character