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Beat-level Electrocardiography (ECG) arrhythmia detection aims to assign an arrhythmia class to each beat in a recording, yet many existing systems treat beats as isolated local instances. This is limiting because beat labels often depend…

Machine Learning · Computer Science 2026-05-19 Jiahui Li , Ruili Fang , Zishuai Liu , WenZhan Song , Jin Lu , Fei Dou

Objective: We aimed to fuse the outputs of different electrocardiogram-derived respiration (EDR) algorithms to create one EDR signal that is of higher quality. Methods: We viewed each EDR algorithm as a software sensor that recorded…

Signal Processing · Electrical Eng. & Systems 2024-04-16 Jacob McErlean , John Malik , Yu-Ting Lin , Ronen Talmon , Hau-Tieng Wu

Traditional echocardiographic parameters such as ejection fraction (EF) and global longitudinal strain (GLS) have limitations in the early detection of cardiac dysfunction. EF often remains normal despite underlying pathology, and GLS is…

Machine Learning · Computer Science 2025-07-21 Beka Begiashvili , Carlos J. Fernandez-Candel , Matías Pérez Paredes

Objective: The detection of epileptic seizures from scalp electroencephalogram (EEG) signals can facilitate early diagnosis and treatment. Previous studies suggested that the Gaussianity of EEG distributions changes depending on the…

Signal Processing · Electrical Eng. & Systems 2021-03-03 Akira Furui , Ryota Onishi , Akihito Takeuchi , Tomoyuki Akiyama , Toshio Tsuji

Cardiac magnetic resonance imaging (CMR) offers detailed evaluation of cardiac structure and function, but its limited accessibility restricts use to selected patient populations. In contrast, the electrocardiogram (ECG) is ubiquitous and…

In this paper, we present a powerful, compact electrocardiogram (ECG) classification algorithm for cardiac arrhythmia diagnosis that addresses the current reliance on deep learning and convolutional neural networks (CNNs) in ECG analysis.…

We present the meshfree Mixed Collocation Method (MCM) to solve the monodomain model for numerical simulation of cardiac electrophysiology. We apply MCM to simulate cardiac electrical propagation in 2D tissue sheets and 3D tissue slabs as…

Numerical Analysis · Mathematics 2021-10-14 Konstantinos A. Mountris , Esther Pueyo

Neuroimaging modalities such as functional magnetic resonance imaging (fMRI) and electroencephalography (EEG) provide information about neurological functions in complementary spatiotemporal resolutions; therefore, fusion of these…

Applications · Statistics 2020-12-23 Evrim Acar , Yuri Levin-Schwartz , Vince D. Calhoun , Tülay Adalı

Objective: Global (inter-patient) ECG classification for arrhythmia detection over Electrocardiogram (ECG) signal is a challenging task for both humans and machines. The main reason is the significant variations of both normal and…

Machine Learning · Computer Science 2022-05-31 Muhammad Uzair Zahid , Serkan Kiranyaz , Moncef Gabbouj

Background and Objective: Event-based analog-to-digital converters allow for sparse bio-signal acquisition, enabling local sub-Nyquist sampling frequency. However, aggressive event selection can cause the loss of important bio-markers, not…

Signal Processing · Electrical Eng. & Systems 2022-07-06 Silvio Zanoli , Tomas Teijeiro , Giovanni Ansaloni , David Atienza

Invasive electroencephalograph (EEG) recordings of ten patients suffering from focal epilepsy were analyzed using the method of renormalized entropy. Introduced as a complexity measure for the different regimes of a dynamical system, the…

Medical Physics · Physics 2009-10-31 K. Kopitzki , P. C. Warnke , J. Timmer

Scalp electroencephalography (EEG) and intracranial EEG (iEEG) are vital for epilepsy diagnosis and treatment. Their unified analysis offers the potential to harness the complementary strengths of each modality but is challenging due to…

Neurons and Cognition · Quantitative Biology 2025-06-23 Runkai Zhang , Hua Yu , John Q. Gan , Haixian Wang

EEG emotion recognition faces significant hurdles due to noise interference, signal nonstationarity, and the inherent complexity of brain activity which make accurately emotion classification. In this study, we present the Fourier Adjacency…

Signal Processing · Electrical Eng. & Systems 2025-03-19 Jinfeng Wang , Yanhao Huang , Sifan Song , Boqian Wang , Jionglong Su , Jiaman Ding

Electroencephalography (EEG) is an objective tool for emotion recognition and shows promising performance. However, the label scarcity problem is a main challenge in this field, which limits the wide application of EEG-based emotion…

Signal Processing · Electrical Eng. & Systems 2024-09-02 Rushuang Zhou , Weishan Ye , Zhiguo Zhang , Yanyang Luo , Li Zhang , Linling Li , Gan Huang , Yining Dong , Yuan-Ting Zhang , Zhen Liang

Echocardiography is widely used to clinical practice for diagnosis and treatment, e.g., on the common congenital heart defects. The traditional manual manipulation is error-prone due to the staff shortage, excess workload, and less…

Computer Vision and Pattern Recognition · Computer Science 2022-03-15 Fuhai Chen , Rongrong Ji , Chengpeng Dai , Xuri Ge , Shengchuang Zhang , Xiaojing Ma , Yue Gao

Among the different modalities to assess emotion, electroencephalogram (EEG), representing the electrical brain activity, achieved motivating results over the last decade. Emotion estimation from EEG could help in the diagnosis or…

Computer Vision and Pattern Recognition · Computer Science 2022-04-05 Victor Delvigne , Antoine Facchini , Hazem Wannous , Thierry Dutoit , Laurence Ris , Jean-Philippe Vandeborre

Motor pattern recognition paradigms are the main forms of Brain-Computer Interfaces(BCI) aimed at motor function rehabilitation and are the most easily promoted applications. In recent years, many researchers have suggested encouraging…

Signal Processing · Electrical Eng. & Systems 2024-10-01 ZhengXiao He , Minghong Cai , Letian Li , Siyuan Tian , Ren-Jie Dai

Although electrocardiograms (ECG) play a dominant role in cardiovascular diagnosis and treatment, their intrinsic data forms and representational patterns pose significant challenges for medical multimodal large language models (Med-MLLMs)…

Fault classification in industrial machinery is vital for enhancing reliability and reducing downtime, yet it remains challenging due to the variability of vibration patterns across diverse operating conditions. This study introduces a…

Machine Learning · Computer Science 2025-04-15 Moirangthem Tiken Singh

Owing to recent advances in thoracic electrical impedance tomography, a patient's hemodynamic function can be noninvasively and continuously estimated in real-time by surveilling a cardiac volume signal associated with stroke volume and…

Signal Processing · Electrical Eng. & Systems 2023-01-05 Chang Min Hyun , Tae Jun Jang , Jeongchan Nam , Hyeuknam Kwon , Kiwan Jeon , Kyunghun Lee
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