# Insomnia Characterization: From Hypnogram to Graph Spectral Theory

> Research article (IEEE Transactions on Biomedical Engineering, 2016) · cited 10× · AI/ML

**Wikidata**: [openalex:W2343280149](https://www.wikidata.org/wiki/openalex:W2343280149)  
**Source**: https://4ort.xyz/entity/insomnia-characterization-from-hypnogram-to-graph-spectral-theory