Data augmentation for generating synthetic electrogastrogram time series

Nadica Miljković (Avtor), Nikola Milenić (Avtor), Nenad B. Popović (Avtor), Jaka Sodnik (Avtor)

Povzetek

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 artifcial EGG time series alterations caused by the simulator sickness. Proposed data augmentation method generates synthetic EGG data with specifed 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 signifcant diference between postprandial and fasting states in>70% cases while not accounting for individual diferences. 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 artifcial 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.

Ključne besede

želodčni ritem;elektrogastrografija;gibalna slabost;gostota močnostnega spektra;sintetični podatki;gastric rhythm;electrogastrography;motion sickness;power spectral density;synthetic data;

Podatki

Jezik:	Angleški jezik
Leto izida:	2024
Tipologija:	1.01 - Izvirni znanstveni članek
Organizacija:	UL FE - Fakulteta za elektrotehniko
UDK:	004:621.3:616.3
COBISS:	194766851
ISSN:	1741-0444
Št. ogledov:	54
Št. prenosov:	4
Ocena:	0 (0 glasov)
Metapodatki:

Ostali podatki

Sekundarni jezik:	Slovenski jezik
Sekundarne ključne besede:	želodčni ritem;elektrogastrografija;gibalna slabost;gostota močnostnega spektra;sintetični podatki;
Vrsta dela (COBISS):	Članek v reviji
Strani:	str. 2879-2891
Letnik:	ǂVol. ǂ62
Zvezek:	ǂiss. ǂ9
Čas izdaje:	Sep. 2024
DOI:	10.1007/s11517-024-03112-0
ID:	24750114