# A deep transfer learning approach for wearable sleep stage classification with photoplethysmography

> Research article (npj Digital Medicine, 2021) · cited 116× · AI/ML

**Wikidata**: [openalex:W3201282232](https://www.wikidata.org/wiki/openalex:W3201282232)  
**Source**: https://4ort.xyz/entity/a-deep-transfer-learning-approach-for-wearable-sleep-stage-classification-with-photoplethysmography