Automatic Sleep Stage Classification by a Density - Distance- Based K - means Clustering Algorithm with Amendments

Sleep staging has important significance for the monitoring, prevention and treatment of sleep disorders. In this study, the clustering algorithm of K-means is investigated in order to realize the automatic sleep stage classification. Unlike the traditional K-means clustering algorithm, density-dist...

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Published in2019 12th International Congress on Image and Signal Processing, BioMedical Engineering and Informatics (CISP-BMEI) pp. 1 - 6
Main Authors Yu, Ying, Wang, Bei, Jin, Jing, Wang, Xingyu
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.10.2019
Subjects
Clustering algorithms
Electrodes
Electroencephalography
Signal processing algorithms
Sleep
Support vector machines
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Summary:Sleep staging has important significance for the monitoring, prevention and treatment of sleep disorders. In this study, the clustering algorithm of K-means is investigated in order to realize the automatic sleep stage classification. Unlike the traditional K-means clustering algorithm, density-distance-based processing procedures were presented to determine the cluster centers. Additionally, the clustering results were amended based on the regularity of sleep stages during one's overnight sleep process. The presented algorithm was tested and analyzed in detail with six subjects from the Sleep-EDF database. The averaged accuracy is about 74%. Comparing with the traditional K-means clustering algorithm, the developed algorithm achieved more accurate and reasonable sleep staging results which can be an assistant tool for clinical inspection.
DOI:10.1109/CISP-BMEI48845.2019.8965897