Applications of Self-Supervised Learning to Biomedical Signals: A Survey

Over the last decade, deep learning applications in biomedical research have exploded, demonstrating their ability to often outperform previous machine learning approaches in various tasks. However, training deep learning models for biomedical applications requires large amounts of data annotated by...

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Main Authors: Federico Del Pup, Manfredo Atzori
Format: Article
Language:English
Published: IEEE 2023-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/10365170/
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author Federico Del Pup
Manfredo Atzori
author_facet Federico Del Pup
Manfredo Atzori
author_sort Federico Del Pup
collection DOAJ
description Over the last decade, deep learning applications in biomedical research have exploded, demonstrating their ability to often outperform previous machine learning approaches in various tasks. However, training deep learning models for biomedical applications requires large amounts of data annotated by experts, whose collection is often time- and cost- prohibitive. Self-Supervised Learning (SSL) has emerged as a prominent solution for such problems, as it allows learning powerful representations from vast unlabeled data by producing supervisory signals directly from the data. The high number of recent works employing the self-supervised learning paradigm for the analysis of biomedical signals (biosignals) can make it difficult for researchers to have a complete picture of the current research state. Therefore, this paper aims at outlining and clarifying the state-of-the-art in the domain. The article: briefly summarizes the nature and acquisition modality of the main biosignals; introduces the self-supervised learning method, focusing on the different pretraining strategies; provides a concise overview of the works employing SSL for the analysis of different types of biosignals; provides an overall analysis of critical aspects to consider when employing SSL to biosignals, also highlighting current open challenges. The analysis of the scientific literature highlights the importance of SSL, confirming its potential to improve models’ performance and robustness, and to promote the integration of deep learning into clinical tasks.
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spelling doaj.art-f5510244ff074a99a9cb8788146615f12023-12-26T00:06:52ZengIEEEIEEE Access2169-35362023-01-011114418014420310.1109/ACCESS.2023.334453110365170Applications of Self-Supervised Learning to Biomedical Signals: A SurveyFederico Del Pup0https://orcid.org/0009-0004-0698-962XManfredo Atzori1https://orcid.org/0000-0001-5397-2063Department of Information Engineering, University of Padua, Padua, ItalyDepartment of Neuroscience, University of Padua, Padua, ItalyOver the last decade, deep learning applications in biomedical research have exploded, demonstrating their ability to often outperform previous machine learning approaches in various tasks. However, training deep learning models for biomedical applications requires large amounts of data annotated by experts, whose collection is often time- and cost- prohibitive. Self-Supervised Learning (SSL) has emerged as a prominent solution for such problems, as it allows learning powerful representations from vast unlabeled data by producing supervisory signals directly from the data. The high number of recent works employing the self-supervised learning paradigm for the analysis of biomedical signals (biosignals) can make it difficult for researchers to have a complete picture of the current research state. Therefore, this paper aims at outlining and clarifying the state-of-the-art in the domain. The article: briefly summarizes the nature and acquisition modality of the main biosignals; introduces the self-supervised learning method, focusing on the different pretraining strategies; provides a concise overview of the works employing SSL for the analysis of different types of biosignals; provides an overall analysis of critical aspects to consider when employing SSL to biosignals, also highlighting current open challenges. The analysis of the scientific literature highlights the importance of SSL, confirming its potential to improve models’ performance and robustness, and to promote the integration of deep learning into clinical tasks.https://ieeexplore.ieee.org/document/10365170/Biosignalscontrastive learning (CL)deep learning (DL)electrocardiography (ECG)electroencephalography (EEG)electromyography (EMG)
spellingShingle Federico Del Pup
Manfredo Atzori
Applications of Self-Supervised Learning to Biomedical Signals: A Survey
IEEE Access
Biosignals
contrastive learning (CL)
deep learning (DL)
electrocardiography (ECG)
electroencephalography (EEG)
electromyography (EMG)
title Applications of Self-Supervised Learning to Biomedical Signals: A Survey
title_full Applications of Self-Supervised Learning to Biomedical Signals: A Survey
title_fullStr Applications of Self-Supervised Learning to Biomedical Signals: A Survey
title_full_unstemmed Applications of Self-Supervised Learning to Biomedical Signals: A Survey
title_short Applications of Self-Supervised Learning to Biomedical Signals: A Survey
title_sort applications of self supervised learning to biomedical signals a survey
topic Biosignals
contrastive learning (CL)
deep learning (DL)
electrocardiography (ECG)
electroencephalography (EEG)
electromyography (EMG)
url https://ieeexplore.ieee.org/document/10365170/
work_keys_str_mv AT federicodelpup applicationsofselfsupervisedlearningtobiomedicalsignalsasurvey
AT manfredoatzori applicationsofselfsupervisedlearningtobiomedicalsignalsasurvey