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Machine-learning models in high-energy physics are often trained on simulated data, where fully simulated samples are computationally expensive while fast simulation provides large statistics at reduced realism. In this work, we…

机器学习 · 计算机科学 2026-05-11 Matthias Schott , Lucie Flek

Fast radio bursts (FRBs) are millisecond-duration radio transients of extragalactic origin, with diverse time-frequency patterns and emission properties that require explanation. With one possible exception, FRBs are detected only in the…

高能天体物理现象 · 物理学 2025-02-19 Dirk Kuiper , Gabriella Contardo , Daniela Huppenkothen , Jason W. T. Hessels

Most phoneme recognition state-of-the-art systems rely on a classical neural network classifiers, fed with highly tuned features, such as MFCC or PLP features. Recent advances in ``deep learning'' approaches questioned such systems, but…

机器学习 · 计算机科学 2013-12-10 Dimitri Palaz , Ronan Collobert , Mathew Magimai. -Doss

Kernel learning methods are among the most effective learning methods and have been vigorously studied in the past decades. However, when tackling with complicated tasks, classical kernel methods are not flexible or "rich" enough to…

机器学习 · 计算机科学 2019-10-08 Jiaxuan Xie , Fanghui Liu , Kaijie Wang , Xiaolin Huang

Deep learning has been widely used in radio frequency (RF) fingerprinting. Despite its excellent performance, most existing methods only consider a closed-set assumption, which cannot effectively tackle signals emitted from those unknown…

信号处理 · 电气工程与系统科学 2023-06-27 Weidong Wang , Hongshu Liao , Lu Gan

This paper explores the use of ambient radio frequency (RF) signals for human presence detection through deep learning. Using WiFi signal as an example, we demonstrate that the channel state information (CSI) obtained at the receiver…

机器学习 · 计算机科学 2020-12-11 Yang Liu , Tiexing Wang , Yuexin Jiang , Biao Chen

The recent advances in Gravitational-wave astronomy have greatly accelerated the study of Multimessenger astrophysics. There is a need for the development of fast and efficient algorithms to detect non-astrophysical transients and noises…

信号处理 · 电气工程与系统科学 2020-09-28 Rahul Nigam , Amit Mishra , Pranath Reddy

In this work, we investigate the feasibility and effectiveness of employing deep learning algorithms for automatic recognition of the modulation type of received wireless communication signals from subsampled data. Recent work considered a…

信号处理 · 电气工程与系统科学 2019-01-18 Sharan Ramjee , Shengtai Ju , Diyu Yang , Xiaoyu Liu , Aly El Gamal , Yonina C. Eldar

This paper presents DeepCRF, a new framework that harnesses deep learning to extract subtle micro-signals from channel state information (CSI) measurements, enabling robust and resilient radio-frequency fingerprinting (RFF) of…

信号处理 · 电气工程与系统科学 2024-11-12 Ruiqi Kong , He Chen

This study investigates the key characteristics and suitability of widely used Facial Expression Recognition (FER) datasets for training deep learning models. In the field of affective computing, FER is essential for interpreting human…

计算机视觉与模式识别 · 计算机科学 2025-03-27 F. Xavier Gaya-Morey , Cristina Manresa-Yee , Célia Martinie , Jose M. Buades-Rubio

While deep learning has been successfully applied to many real-world computer vision tasks, training robust classifiers usually requires a large amount of well-labeled data. However, the annotation is often expensive and time-consuming.…

计算机视觉与模式识别 · 计算机科学 2020-09-09 Zhiyu Xue , Lixin Duan , Wen Li , Lin Chen , Jiebo Luo

We investigate the use of Convolutional Neural Networks (including the modern ConvNeXt network family) to classify transient noise signals (i.e.~glitches) and gravitational waves in data from the Advanced LIGO detectors. First, we use…

广义相对论与量子宇宙学 · 物理学 2023-08-28 Tiago S. Fernandes , Samuel J. Vieira , Antonio Onofre , Juan Calderón Bustillo , Alejandro Torres-Forné , José A. Font

The study of fast radio bursts (FRBs) is of great importance, and is a topic that has been extensively researched, particularly in recent years. While the extreme nature of FRBs can serve as a tool for researchers to probe the intergalactic…

天体物理仪器与方法 · 物理学 2023-02-14 Apostolos Spanakis-Misirlis , Cameron L. Van Eck

Autonomous agents interacting with the real world need to learn new concepts efficiently and reliably. This requires learning in a low-data regime, which is a highly challenging problem. We address this task by introducing a fast…

计算机视觉与模式识别 · 计算机科学 2022-03-22 Ardhendu Shekhar Tripathi , Martin Danelljan , Luc Van Gool , Radu Timofte

Radio frequency (RF)-based indoor localization offers significant promise for applications such as indoor navigation, augmented reality, and pervasive computing. While deep learning has greatly enhanced localization accuracy and robustness,…

信息论 · 计算机科学 2025-12-09 Guosheng Wang , Shen Wang , Lei Yang

The utilization of Very Low Frequency (VLF) electromagnetic signals in navigation systems is widespread. However, the non-stationary behavior of lightning signals can affect VLF electromagnetic signal transmission. Accurately classifying…

机器学习 · 统计学 2023-12-08 Jinghao Sun , Tingting Ji , Guoyu Wang , Rui Wang

Beamforming (BF) is essential for enhancing system capacity in fifth generation (5G) and beyond wireless networks, yet exhaustive beam training in ultra-massive multiple-input multiple-output (MIMO) systems incurs substantial overhead. To…

信号处理 · 电气工程与系统科学 2026-02-11 Yanliang Jin , Yunfan Li , Jiang Jun , Yuan Gao , Shengli Liu , Jianbo Du , Zhaohui Yang , Shugong Xu

Existing datasets used to train deep learning models for narrowband radio frequency (RF) signal classification lack enough diversity in signal types and channel impairments to sufficiently assess model performance in the real world. We…

We have trained a fully convolutional spatio-temporal model for fast and accurate representation learning in the challenging exemplar application area of fusion energy plasma science. The onset of major disruptions is a critically important…

计算物理 · 物理学 2020-09-29 Ge Dong , Kyle Gerard Felker , Alexey Svyatkovskiy , William Tang , Julian Kates-Harbeck

In recent years deep neural networks have become the workhorse of computer vision. In this paper, we employ a deep learning approach to classify footwear impression's features known as \emph{descriptors} for forensic use cases. Within this…

计算机视觉与模式识别 · 计算机科学 2021-02-11 Marcin Budka , Akanda Wahid Ul Ashraf , Scott Neville , Alun Mackrill , Matthew Bennett