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T-wave alternans (TWA) is a potential marker for sudden cardiac death, but its reliable analysis is often constrained to noise-free environments, limiting its utility in real-world settings. We explore model-based T-wave estimation to…

Medical Physics · Physics 2025-04-28 Zuzana Koscova , Amit Shah , Ali Bahrami Rad , Qiao Li , Gari D Clifford , Reza Sameni

We consider the problem of the detection of brain hemorrhages from three dimensional (3D) electrical impedance tomography (EIT) measurements. This is a condition requiring urgent treatment for which EIT might provide a portable and quick…

Numerical Analysis · Mathematics 2021-10-27 Valentina Candiani , Matteo Santacesaria

Anomaly detection in 12-lead electrocardiograms (ECGs) is critical for identifying deviations associated with cardiovascular disease. This work presents a comparative analysis of three autoencoder-based architectures: convolutional…

Machine Learning · Computer Science 2025-10-08 Marc Garreta Basora , Mehmet Oguz Mulayim

Electroencephalograms (EEG) are noninvasive measurement signals of electrical neuronal activity in the brain. One of the current major statistical challenges is formally measuring functional dependency between those complex signals. This…

Methodology · Statistics 2021-05-14 Marco Antonio Pinto-Orellana , Peyman Mirtaheri , Hugo L. Hammer , Hernando Ombao

Seizure onset detection in electroencephalography (EEG) signals is a challenging task due to the non-stereotyped seizure activities as well as their stochastic and non-stationary characteristics in nature. Joint spectral-temporal features…

Signal Processing · Electrical Eng. & Systems 2022-02-15 Xucun Yan , Dongping Yang , Zihuai Lin , Branka Vucetic

Identifying abnormal electroencephalographic activity is crucial in diagnosis and treatment of epilepsy. Recent studies showed that decomposing brain activity into periodic (oscillatory) and aperiodic (trend across all frequencies)…

Neurons and Cognition · Quantitative Biology 2023-10-11 Csaba Kozma , Gabrielle Schroeder , Tom Owen , Jane de Tisi , Andrew W. McEvoy , Anna Miserocchi , John Duncan , Yujiang Wang , Peter N. Taylor

The brain electrical activity presents several short events during sleep that can be observed as distinctive micro-structures in the electroencephalogram (EEG), such as sleep spindles and K-complexes. These events have been associated with…

Signal Processing · Electrical Eng. & Systems 2020-10-06 Nicolás I. Tapia , Pablo A. Estévez

We propose a new approach to Human Activity Evaluation (HAE) in long videos using graph-based multi-task modeling. Previous works in activity evaluation either directly compute a metric using a detected skeleton or use the scene information…

Computer Vision and Pattern Recognition · Computer Science 2020-12-03 Behnoosh Parsa , Ashis G. Banerjee

Brain source imaging is an important method for noninvasively characterizing brain activity using Electroencephalogram (EEG) or Magnetoencephalography (MEG) recordings. Traditional EEG/MEG Source Imaging (ESI) methods usually assume that…

Applications · Statistics 2019-06-07 Feng Liu , Li Wang , Yifei Lou , Rencang Li , Patrick Purdon

Post-operative cognitive decline is a well-known phenomenon and of crucial importance especially in the elderly. General anesthesia can be accomplished by inhalation-based (volatile) or total intravenous anesthesia (TIVA). While their…

Neurons and Cognition · Quantitative Biology 2022-02-16 Amitai Bickel , Alexey Gavrilov , Shimon Ivry , Neta B Maimon , Lior Molcho , Nathan Intrator

We study the problem of inferring user intent from noninvasive electroencephalography (EEG) to restore communication for people with severe speech and physical impairments (SSPI). The focus of this work is improving the estimation of…

Signal Processing · Electrical Eng. & Systems 2022-11-07 Niklas Smedemark-Margulies , Basak Celik , Tales Imbiriba , Aziz Kocanaogullari , Deniz Erdogmus

In the field of neuroscience, Brain activity analysis is always considered as an important area. Schizophrenia(Sz) is a brain disorder that severely affects the thinking, behaviour, and feelings of people all around the world.…

Signal Processing · Electrical Eng. & Systems 2021-11-23 Geetanjali Sharma , Amit M. Joshi

Transthoracic echocardiography (TTE) is the first-line imaging modality for diagnosing bicuspid aortic valve (BAV), yet diagnostic performance varies with operator expertise and image quality. We developed an explainable AI model that…

Background: Epilepsy is a neurological illness affecting the brain that makes people more likely to experience frequent, spontaneous seizures. There has to be an accurate automated method for measuring seizure frequency and severity in…

Signal Processing · Electrical Eng. & Systems 2023-05-09 Salim Rukhsar , Anil K. Tiwari

In this work, we leverage machine learning techniques to identify potential biomarkers of oxygen desaturation during sleep exclusively from electroencephalogram (EEG) signals in pediatric patients with sleep apnea. Development of a machine…

Signal Processing · Electrical Eng. & Systems 2025-02-03 Shashank Manjunath , Aarti Sathyanarayana

This study aims to enhance BCI applications for individuals with motor impairments by comparing the effectiveness of tripolar EEG (tEEG) with conventional EEG. The focus is on interpreting and decoding various grasping movements, such as…

Signal Processing · Electrical Eng. & Systems 2025-06-12 Ali Rabiee , Sima Ghafoori , Anna Cetera , Maryam Norouzi , Walter Besio , Reza Abiri

Depression and post-traumatic stress disorder (PTSD) are psychiatric conditions commonly associated with experiencing a traumatic event. Estimating mental health status through non-invasive techniques such as activity-based algorithms can…

Stroke patients have symptoms of cerebral functional disturbance that could aggressively impair patient's physical mobility, such as freezing of hand movements. Although rehabilitation training from external devices is beneficial for hand…

Signal Processing · Electrical Eng. & Systems 2020-06-30 Xiaotong Gu , Zehong Cao

Objective: The aim of this study is to develop an efficient and reliable epileptic seizure prediction system using intracranial EEG (iEEG) data, especially for people with drug-resistant epilepsy. The prediction procedure should yield…

Neural and Evolutionary Computing · Computer Science 2019-04-09 Ramy Hussein , Mohamed Osama Ahmed , Rabab Ward , Z. Jane Wang , Levin Kuhlmann , Yi Guo

Electroencephalography (EEG) reflects the brain's functional state, making it a crucial tool for diverse detection applications like seizure detection and sleep stage classification. While deep learning-based approaches have recently shown…

Machine Learning · Computer Science 2025-10-07 Kerui Wu , Ziyue Zhao , Bülent Yener