# Automatic Sleep Stage Classification using Weighted ELM and PSO on Imbalanced Data from Single Lead ECG

> Research article (Procedia Computer Science, 2019) · cited 27× · AI/ML

**Wikidata**: [openalex:W2977394145](https://www.wikidata.org/wiki/openalex:W2977394145)  
**Source**: https://4ort.xyz/entity/automatic-sleep-stage-classification-using-weighted-elm-and-pso-on-imbalanced-data-from-single-lead-ecg