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dc.contributor.authorMoreno-Barea, Francisco J.
dc.contributor.authorFranco, Leonardo
dc.contributor.authorElizondo Acuña, David Alberto
dc.contributor.authorGrootveld, Martin
dc.date.accessioned2022-09-01T09:47:23Z
dc.date.available2022-09-01T09:47:23Z
dc.date.issued2022-07-27
dc.identifier.citationFrancisco J. Moreno-Barea, Leonardo Franco, David Elizondo, Martin Grootveld, Application of data augmentation techniques towards metabolomics, Computers in Biology and Medicine, Volume 148, 2022, 105916, ISSN 0010-4825, https://doi.org/10.1016/j.compbiomed.2022.105916es_ES
dc.identifier.urihttps://hdl.handle.net/10630/24869
dc.description.abstractNiemann–Pick Class 1 (NPC1) disease is a rare and debilitating neurodegenerative lysosomal storage disease (LSD). Metabolomics datasets of NPC1 patients available to perform this type of analysis are often limited in the number of samples and severely unbalanced. In order to improve the predictive capability and identify new biomarkers in an NPC1 disease urinary dataset, data augmentation (DA) techniques based on computational intelligence have been employed to create synthetic samples, i.e. the addition of noise, oversampling techniques and conditional generative adversarial networks. These techniques have been used to evaluate their predictive capacities on a set of urine samples donated by 13 untreated NPC1 disease and 47 heterozygous (parental) carrier control participants. Results on the prediction have also been obtained using different machine learning classification models and the partial least squares techniques. These results provide strong evidence for the ability of DA techniques to generate good quality synthetic data. Results acquired show increases in sensitivity of 20%–50%, an F1 score of 6%–30%, and a predictive capacity of 0.3 (out of 1). Additionally, more conventional forms of multivariate data analysis have been employed. These have allowed the detection of unusual urinary metabolite profiles, and the identification of biomarkers through the use of synthetically augmented datasets. Results indicate that urinary branched-chain amino acids such as valine, 3-aminoisobutyrate and quinolinate, may be employable as valuable biomarkers for the diagnosis and prognostic monitoring of NPC1 diseasees_ES
dc.description.sponsorshipThe authors acknowledge the support from MINECO (Spain) through grants TIN2017-88728-C2-1-R and PID2020-116898RB-I00 (MICINN), from Universidad de Málaga y Junta de Andalucía through grant UMA20-FEDERJA-045, and from Instituto de Investigación Biomédica de Málaga – IBIMA (all including FEDER funds). Funding for open access charge: Universidad de Málaga / CBUA .es_ES
dc.language.isoenges_ES
dc.publisherElsevieres_ES
dc.rightsinfo:eu-repo/semantics/openAccesses_ES
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectAprendizaje automático (Inteligencia artificial)es_ES
dc.subject.otherData augmentationes_ES
dc.subject.otherMachine learninges_ES
dc.subject.otherMetabolomicses_ES
dc.subject.otherNiemann–Pick type C diseasees_ES
dc.subject.otherRare diseaseses_ES
dc.titleApplication of data augmentation techniques towards metabolomicses_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.centroE.T.S.I. Informáticaes_ES
dc.identifier.doihttps://doi.org/10.1016/j.compbiomed.2022.105916
dc.rights.ccAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.type.hasVersioninfo:eu-repo/semantics/publishedVersiones_ES


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