# Nonintrusive ultrasonic-based occupant identification for energy efficient smart building applications

> Research article (Applied Energy, 2018) · cited 14× · AI/ML

**Wikidata**: [openalex:W2794611423](https://www.wikidata.org/wiki/openalex:W2794611423)  
**Source**: https://4ort.xyz/entity/nonintrusive-ultrasonic-based-occupant-identification-for-energy-efficient-smart-building-applications