20.500.12556/RUL-160090 Data augmentation for generating synthetic electrogastrogram time series To address an emerging need for large number of diverse datasets for rigor evaluation of signal processing techniques, we developed and evaluated a new method for generating synthetic electrogastrogram time series. We used electrogastrography (EGG) data from an open database to set model parameters and statistical tests to evaluate synthesized data. Additionally, we illustrated method customization for generating artificial EGG time series alterations caused by the simulator sickness. Proposed data augmentation method generates synthetic EGG data with specified duration, sampling frequency, recording state (postprandial or fasting state), overall noise and breathing artifact injection, and pauses in the gastric rhythm (arrhythmia occurrence) with statistically significant difference between postprandial and fasting states in > 70% cases while not accounting for individual differences. Features obtained from the synthetic EGG signal resembling simulator sickness occurrence displayed expected trends. The code for generation of synthetic EGG time series is not only freely available and can be further customized to assess signal processing algorithms but also may be used to increase data diversity for training artificial intelligence (AI) algorithms. The proposed approach is customized for EGG data synthesis but can be easily utilized for other biosignals with similar nature such as electroencephalogram. gastric rhythm electrogastrography motion sickness power spectral density synthetic data želodčni ritem elektrogastrografija gibalna slabost gostota močnostnega spektra sintetični podatki true false true Angleški jezik Slovenski jezik Članek v reviji 2024-08-19 11:56:57 2024-08-19 11:57:05 2024-08-21 14:52:39 0000-00-00 00:00:00 2024 0 0 Str. 2879-2891 iss. 9 Vol. 62 Sep. 2024 0000-00-00 Zaloznikova Objavljeno apc 0000-00-00 0000-00-00 0000-00-00 004:621.3:616.3 1741-0444 10.1007/s11517-024-03112-0 194766851 s11517-024-03112-0_(1).pdf s11517-024-03112-0_(1).pdf 1 BE819E3A92A5AC53A7FCB8C484771952 ff87f6ac985f77de50c9925a2c557dc035b5b73e33d545a29ea79e4a23c0ec63 858cd540-5e11-11ef-8f74-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=188546 https://link.springer.com/article/10.1007/s11517-024-03112-0 1 33598d6b-5e11-11ef-8f74-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=188545 Fakulteta za elektrotehniko 0 0 0