To facilitate the performance comparison of new methods for sleep patterns analysis,
datasets with quality content, publicly-available, are very important and useful. We introduce …

Background The limitations of the current systems of automatic sleep stage classification
(ASSC) are essentially related to the similarities between epochs from different sleep stages …

Sleep Stage Classification (SSC) is a standard process in the Polysomnography (PSG) for
studying sleep patterns and events. The SSC provides sleep stage information of a patient …

Bioelectrical signals, which records brain activity, are among the complex dynamic signals
due to the strong non-stationarity effects of brain and subject dependency. In biosignal …

Methods An ASSC system consisting of a two-step classifier is proposed. In the first step,
epochs are classified using support vector machines (SVMs) spread into different nodes of a …

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