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Learning efficient representations for decision-making policies is a challenge in imitation learning (IL). Current IL methods require expert demonstrations, which are expensive to collect. Additionally, they are not explicitly trained to…

机器学习 · 计算机科学 2026-03-19 Aleksandar Vujinovic , Aleksandar Kovacevic

Self-supervised learning has seen great success recently in unsupervised representation learning, enabling breakthroughs in natural language and image processing. However, these methods often rely on autoregressive and masked modeling,…

机器学习 · 计算机科学 2025-10-01 Sofiane Ennadir , Siavash Golkar , Leopoldo Sarra

A language is made up of an infinite/finite number of sentences, which in turn is composed of a number of words. The Electrocardiogram (ECG) is the most popular noninvasive medical tool for studying heart function and diagnosing various…

信号处理 · 电气工程与系统科学 2024-07-17 Prapti Ganguly , Wazib Ansar , Amlan Chakrabarti

Cardiovascular diseases are a leading cause of death and disability worldwide. Electrocardiogram (ECG) is critical for diagnosing and monitoring cardiac health, but obtaining large-scale annotated ECG datasets is labor-intensive and…

信号处理 · 电气工程与系统科学 2025-09-22 Mingsheng Cai , Jiuming Jiang , Wenhao Huang , Che Liu , Rossella Arcucci

Electrocardiogram (ECG) signals, profiling the electrical activities of the heart, are used for a plethora of diagnostic applications. However, ECG systems require multiple leads or channels of signals to capture the complete view of the…

信号处理 · 电气工程与系统科学 2024-05-31 Nabil Ibtehaz , Masood Mortazavi

Recent advances in machine learning (ML) have shown promise in accelerating the discovery of polymers with desired properties by aiding in tasks such as virtual screening via property prediction. However, progress in polymer ML is hampered…

机器学习 · 计算机科学 2025-06-25 Francesco Piccoli , Gabriel Vogel , Jana M. Weber

Unsupervised learning methods have become increasingly important in deep learning due to their demonstrated large utilization of datasets and higher accuracy in computer vision and natural language processing tasks. There is a growing trend…

计算机视觉与模式识别 · 计算机科学 2023-10-18 Guoxin Wang , Qingyuan Wang , Ganesh Neelakanta Iyer , Avishek Nag , Deepu John

Electrocardiography (ECG) is a non-invasive tool for predicting cardiovascular diseases (CVDs). Current ECG-based diagnosis systems show promising performance owing to the rapid development of deep learning techniques. However, the label…

信号处理 · 电气工程与系统科学 2023-06-21 Rushuang Zhou , Lei Lu , Zijun Liu , Ting Xiang , Zhen Liang , David A. Clifton , Yining Dong , Yuan-Ting Zhang

Video Joint Embedding Predictive Architectures (V-JEPA) learn generalizable off-the-shelf video representation by predicting masked regions in latent space with an exponential moving average (EMA)-updated teacher. While EMA prevents…

机器学习 · 计算机科学 2025-09-30 Xianhang Li , Chen Huang , Chun-Liang Li , Eran Malach , Josh Susskind , Vimal Thilak , Etai Littwin

Electrocardiogram (ECG) signals are critical for diagnosing heart conditions and capturing detailed cardiac patterns. As wearable single-lead ECG devices become more common, efficient analysis methods are essential. We present NERULA…

信号处理 · 电气工程与系统科学 2024-05-31 Gouthamaan Manimaran , Sadasivan Puthusserypady , Helena Domínguez , Adrian Atienza , Jakob E. Bardram

Electrocardiography (ECG) plays a central role in cardiovascular diagnostics, yet existing automated approaches often struggle to generalize across clinical tasks and offer limited support for open-ended reasoning. We present HeartLLM, a…

人工智能 · 计算机科学 2026-01-27 Jinning Yang , Wenjie Sun , Wen Shi

Learning representations from electrocardiogram (ECG) signals can serve as a fundamental step for different machine learning-based ECG tasks. In order to extract general ECG representations that can be adapted to various downstream tasks,…

机器学习 · 计算机科学 2022-09-22 Wenrui Zhang , Shijia Geng , Shenda Hong

Electrocardiograms (ECGs) are among the most widely available clinical signals and play a central role in cardiovascular diagnosis. While recent foundation models (FMs) have shown promise for learning transferable ECG representations, most…

In this work, we address the challenge of reconstructing the complete 12-lead ECG signal from its incomplete parts. We focus on two main scenarios: (i) reconstructing missing signal segments within an ECG lead and (ii) recovering entire…

信号处理 · 电气工程与系统科学 2025-01-22 Alex Lence , Federica Granese , Ahmad Fall , Blaise Hanczar , Joe-Elie Salem , Jean-Daniel Zucker , Edi Prifti

The label scarcity problem is the main challenge that hinders the wide application of deep learning systems in automatic cardiovascular diseases (CVDs) detection using electrocardiography (ECG). Tuning pre-trained models alleviates this…

机器学习 · 计算机科学 2024-11-18 Rushuang Zhou , Lei Clifton , Zijun Liu , Kannie W. Y. Chan , David A. Clifton , Yuan-Ting Zhang , Yining Dong

This study introduces a deep learning model based on the U-net architecture to reconstruct missing leads in electrocardiograms (ECGs). The model was trained to reconstruct 12-lead ECG data from reduced lead configurations using publicly…

信号处理 · 电气工程与系统科学 2025-06-04 Tomasz Gradowski , Teodor Buchner

Acquiring and annotating large datasets in ultrasound imaging is challenging due to low contrast, high noise, and susceptibility to artefacts. This process requires significant time and clinical expertise. Self-supervised learning (SSL)…

计算机视觉与模式识别 · 计算机科学 2025-07-25 Edward Ellis , Robert Mendel , Andrew Bulpitt , Nasim Parsa , Michael F Byrne , Sharib Ali

The growing Synthetic Aperture Radar (SAR) data has the potential to build a foundation model through Self-Supervised Learning (SSL) methods, which can achieve various SAR Automatic Target Recognition (ATR) tasks with pre-training in…

计算机视觉与模式识别 · 计算机科学 2024-09-27 Weijie Li , Yang Wei , Tianpeng Liu , Yuenan Hou , Yuxuan Li , Zhen Liu , Yongxiang Liu , Li Liu

The success of deep learning in medical imaging is mostly achieved at the cost of a large labeled data set. Semi-supervised learning (SSL) provides a promising solution by leveraging the structure of unlabeled data to improve learning from…

机器学习 · 计算机科学 2019-07-24 Prashnna Kumar Gyawali , Zhiyuan Li , Sandesh Ghimire , Linwei Wang

Single-cell foundation models learn by reconstructing masked gene expression, implicitly treating technical noise as signal. With dropout rates exceeding 90%, reconstruction objectives encourage models to encode measurement artifacts rather…