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We propose the time-delayed transformer (TD-TF), a simplified transformer architecture for data-driven modeling of unsteady spatio-temporal dynamics. TD-TF bridges linear operator-based methods and deep sequence models by showing that a…

Machine Learning · Computer Science 2026-02-10 Albert Alcalde , Markus Widhalm , Emre Yılmaz

Automated Sleep stage classification using raw single channel EEG is a critical tool for sleep quality assessment and disorder diagnosis. However, modelling the complexity and variability inherent in this signal is a challenging task,…

Signal Processing · Electrical Eng. & Systems 2024-01-17 Shivam Sharma , Suvadeep Maiti , S. Mythirayee , Srijithesh Rajendran , Raju Surampudi Bapi

In this study, we present an investigation into the anisotropy dynamics and intrinsic dimension of embeddings in transformer architectures, focusing on the dichotomy between encoders and decoders. Our findings reveal that the anisotropy…

Computation and Language · Computer Science 2024-02-27 Anton Razzhigaev , Matvey Mikhalchuk , Elizaveta Goncharova , Ivan Oseledets , Denis Dimitrov , Andrey Kuznetsov

Low-dose CT (LDCT) images are often accompanied by significant noise, which negatively impacts image quality and subsequent diagnostic accuracy. To address the challenges of multi-scale feature fusion and diverse noise distribution patterns…

Image and Video Processing · Electrical Eng. & Systems 2025-05-20 Zhiting Zheng , Shuqi Wu , Wen Ding

Background: Cardiac resynchronization therapy (CRT) has emerged as an effective treatment for heart failure patients with electrical dyssynchrony. However, accurately predicting which patients will respond to CRT remains a challenge. This…

Signal Processing · Electrical Eng. & Systems 2023-06-05 Zhuo He , Hongjin Si , Xinwei Zhang , Qing-Hui Chen , Jiangang Zou , Weihua Zhou

Deep learning has significantly advanced electrocardiogram (ECG) analysis, enabling automatic annotation, disease screening, and prognosis beyond traditional clinical capabilities. However, understanding these models remains a challenge,…

Machine Learning · Computer Science 2025-09-19 Ahcène Boubekki , Konstantinos Patlatzoglou , Joseph Barker , Fu Siong Ng , Antônio H. Ribeiro

Electroencephalography (EEG) is widely researched for neural decoding in Brain Computer Interfaces (BCIs) as it is non-invasive, portable, and economical. However, EEG signals suffer from inter- and intra-subject variability, leading to…

Signal Processing · Electrical Eng. & Systems 2024-12-25 Taveena Lotey , Aman Verma , Partha Pratim Roy

Error-control-coding (ECC) techniques are widely used in modern digital communication systems to minimize the effect of noisy channels on the quality of received signals. Motivated by the fact that both communication and imaging can be…

Image and Video Processing · Electrical Eng. & Systems 2018-09-20 Xiaopeng Wang , Zunwang Bo , Zihuai Lin , Wenlin Gong , Branka Vucetic , Shensheng Han

Electrocardiogram (ECG) analysis plays a crucial role in diagnosing cardiovascular diseases, but accurate interpretation of these complex signals remains challenging. This paper introduces a novel multimodal framework(GAF-FusionNet) for ECG…

Computer Vision and Pattern Recognition · Computer Science 2025-01-07 Jiahao Qin , Feng Liu

Minimally invasive procedures have been advanced rapidly by the robotic laparoscopic surgery. The latter greatly assists surgeons in sophisticated and precise operations with reduced invasiveness. Nevertheless, it is still safety critical…

Computer Vision and Pattern Recognition · Computer Science 2025-03-05 Zeqing Wang , Han Fang , Yihong Xu , Yutong Ban

Recently, deep learning methods have achieved state-of-the-art performance in many medical image segmentation tasks. Many of these are based on convolutional neural networks (CNNs). For such methods, the encoder is the key part for global…

Image and Video Processing · Electrical Eng. & Systems 2022-08-25 Hao Li , Dewei Hu , Han Liu , Jiacheng Wang , Ipek Oguz

We propose a novel method to embed a functional magnetic resonance imaging (fMRI) dataset in a low-dimensional space. The embedding optimally preserves the local functional coupling between fMRI time series and provides a low-dimensional…

Machine Learning · Statistics 2008-01-16 Xilin Shen , François G. Meyer

Electrophysiological observation plays a major role in epilepsy evaluation. However, human interpretation of brain signals is subjective and prone to misdiagnosis. Automating this process, especially seizure detection relying on scalp-based…

Machine Learning · Computer Science 2018-07-06 David Ahmedt-Aristizabal , Clinton Fookes , Kien Nguyen , Sridha Sridharan

This study presents a federated learning (FL) framework for privacy-preserving electrocardiogram (ECG) classification in Internet of Things (IoT) healthcare environments. By transforming 1D ECG signals into 2D Gramian Angular Field (GAF)…

Machine Learning · Computer Science 2025-11-12 Youssef Elmir , Yassine Himeur , Abbes Amira

Magnetoencephalography (MEG) is an important noninvasive, nonhazardous technology for functional brain mapping, measuring the magnetic fields due to the intracellular neuronal current flow in the brain. However, most often, the inherent…

Instrumentation and Detectors · Physics 2015-03-20 A. Ukil

Low dose computed tomography (LDCT) has attracted more and more attention in routine clinical diagnosis assessment, therapy planning, etc., which can reduce the dose of X-ray radiation to patients. However, the noise caused by low X-ray…

Image and Video Processing · Electrical Eng. & Systems 2021-07-06 Zhicheng Zhang , Lequan Yu , Xiaokun Liang , Wei Zhao , Lei Xing

We propose a novel deep learning based denoising filter selection algorithm for noisy Electrocardiograph (ECG) signal preprocessing. ECG signals measured under clinical conditions, such as those acquired using skin contact devices in…

Signal Processing · Electrical Eng. & Systems 2022-02-02 Chandresh Pravin , Varun Ojha

Electroencephalography provides a non-invasive window into brain activity, offering valuable insights for neurological research, brain-computer interfaces, and clinical diagnostics. However, the development of robust machine learning models…

Signal Processing · Electrical Eng. & Systems 2025-02-26 Chi-Sheng Chen , Ying-Jung Chen , Aidan Hung-Wen Tsai

Because of the limitations of matrix factorization, such as losing spatial structure information, the concept of low-rank tensor factorization (LRTF) has been applied for the recovery of a low dimensional subspace from high dimensional…

Computer Vision and Pattern Recognition · Computer Science 2017-05-22 Xi'ai Chen , Zhi Han , Yao Wang , Qian Zhao , Deyu Meng , Lin Lin , Yandong Tang

Electroencephalography (EEG) serves as an effective diagnostic tool for mental disorders and neurological abnormalities. Enhanced analysis and classification of EEG signals can help improve detection performance. A new approach is examined…

Signal Processing · Electrical Eng. & Systems 2020-02-11 Lubna Shibly Mokatren , Rashid Ansari , Ahmet Enis Cetin , Alex D Leow , Heide Klumpp , Olusola Ajilore , Fatos Yarman Vural