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In large-scale reconfigurable intelligent surface (RIS) communication systems, the precise acquisition of channel state information (CSI) is challenging. Consider a practical RIS configuration where only a few reflective elements serve as…

Information Theory · Computer Science 2026-04-16 Yifan Fang , Bile Peng , Yingyang Chen , Qiang Li , Marwa Chafii , Eduard A. Jorswieck

Modern societies have an abundance of data yet good system models are rare. Unfortunately, many of the current system identification and machine learning techniques fail to generalize outside of the training set, producing models that…

Systems and Control · Electrical Eng. & Systems 2023-11-27 Gabriel F. Machado , Morgan Jones

Radio interferometric (RI) data are noisy under-sampled spatial Fourier components of the unknown radio sky affected by direction-dependent antenna gains. Failure to model these antenna gains accurately results in a radio sky estimate with…

Instrumentation and Methods for Astrophysics · Physics 2021-07-14 Arwa Dabbech , Audrey Repetti , Rick A. Perley , Oleg M. Smirnov , Yves Wiaux

Multimodal semantic communication has great potential to enhance downstream task performance by integrating complementary information across modalities. This paper introduces ProMSC-MIS, a novel Prompt-based Multimodal Semantic…

Multimedia · Computer Science 2025-08-28 Haoshuo Zhang , Yufei Bo , Meixia Tao

Dynamic spectrum access (DSA) benefits from detection and classification of interference sources including in-network users, out-network users, and jammers that may all coexist in a wireless network. We present a deep learning based signal…

Networking and Internet Architecture · Computer Science 2019-09-27 Yi Shi , Kemal Davaslioglu , Yalin E. Sagduyu , William C. Headley , Michael Fowler , Gilbert Green

Many existing multi-modality studies are based on the assumption of modality integrity. However, the problem of missing arbitrary modalities is very common in real life, and this problem is less studied, but actually important in the task…

Computer Vision and Pattern Recognition · Computer Science 2023-05-26 Aihua Zheng , Ziling He , Zi Wang , Chenglong Li , Jin Tang

Unsupervised Visible-Infrared Person Re-identification (USVI-ReID) presents a formidable challenge, which aims to match pedestrian images across visible and infrared modalities without any annotations. Recently, clustered pseudo-label…

Computer Vision and Pattern Recognition · Computer Science 2024-05-10 Xiangbo Yin , Jiangming Shi , Yachao Zhang , Yang Lu , Zhizhong Zhang , Yuan Xie , Yanyun Qu

Radio Frequency Identification (RFID) tracking may be a viable solution for defense assets that must be stored in accordance with security guidelines. However, poor sensor specificity (vulnerabilities include long range detection, spoofing,…

Machine Learning · Computer Science 2025-10-24 Curtis Lee Shull , Merrick Green

We propose a method for channel estimation in multiple-input multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) wireless communication systems. The method exploits the band-sparsity of wireless channels in the…

Signal Processing · Electrical Eng. & Systems 2025-11-26 James Delfeld , Gian Marti , Chris Dick

Reconfigurable intelligent surfaces (RISs) have emerged as a promising solution that can provide dynamic control over the propagation of electromagnetic waves. The RIS technology is envisioned as a key enabler of sixth-generation networks…

Signal Processing · Electrical Eng. & Systems 2025-02-26 Ishan Koralege , Arthur S. de Sena , Nurul H. Mahmood , Farjam Karim , Dimuthu Lesthuruge , Samitha Gunarathne

Reconfigurable intelligent surfaces (RIS) are passive controllable arrays of small reflectors that direct electromagnetic energy towards or away from the target nodes, thereby allowing better management of signals and interference in a…

Information Theory · Computer Science 2023-01-13 Bharath Shamasundar , Negar Daryanavardan , Aria Nosratinia

Resting-state functional MRI (rs-fMRI) scans hold the potential to serve as a diagnostic or prognostic tool for a wide variety of conditions, such as autism, Alzheimer's disease, and stroke. While a growing number of studies have…

Computer Vision and Pattern Recognition · Computer Science 2018-06-14 Meenakshi Khosla , Keith Jamison , Amy Kuceyeski , Mert Sabuncu

Orthogonal time frequency space (OTFS) is a promising alternative to orthogonal frequency division multiplexing (OFDM) in high-mobility beyond 5G communications. In this paper, we consider the problem of radar sensing with OTFS joint…

Signal Processing · Electrical Eng. & Systems 2021-04-02 Musa Furkan Keskin , Henk Wymeersch , Alex Alvarado

Magnetic resonance imaging (MRI), especially functional MRI (fMRI) and diffusion MRI (dMRI), is essential for studying neurodegenerative diseases. However, missing modalities pose a major barrier to their clinical use. Although GAN- and…

Computer Vision and Pattern Recognition · Computer Science 2025-11-10 Xiongri Shen , Jiaqi Wang , Yi Zhong , Zhenxi Song , Leilei Zhao , Yichen Wei , Lingyan Liang , Shuqiang Wang , Baiying Lei , Demao Deng , Zhiguo Zhang

Complex electromagnetic environments, often containing multiple jammers with different jamming patterns, produce non-uniform jamming power across the frequency spectrum. This spectral non-uniformity directly induces severe distortion in the…

Signal Processing · Electrical Eng. & Systems 2025-11-18 Yanhao Wang , Lei Wang , Jie Wang , Yimin Liu

We introduce Fourier Weak SINDy, a minimal noise-robust and interpretable derivative-free equation learning method that combines weak-form sparse equation learning with spectral density estimation for data-driven test function selection. By…

Machine Learning · Computer Science 2026-04-23 Zhiheng Chen , Urban Fasel , Anastasia Bizyaeva

Deep learning models based on resting-state functional magnetic resonance imaging (rs-fMRI) have been widely used to diagnose brain diseases, particularly autism spectrum disorder (ASD). Existing studies have leveraged the functional…

Machine Learning · Computer Science 2023-10-06 Wonsik Jung , Eunjin Jeon , Eunsong Kang , Heung-Il Suk

This paper investigates a reconfigurable intelligent surface (RIS)-aided wideband massive multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) system with low-resolution analog-to-digital converters…

Information Theory · Computer Science 2024-03-15 Xianzhe Chen , Hong Ren , Cunhua Pan , Zhangjie Peng , Kangda Zhi , Yong Liu , Xiaojun Xi , Ana Garcia Armada , Cheng-Xiang Wang

The blind fusion of unregistered hyperspectral images (HSIs) and multispectral images (MSIs) has attracted growing attention recently. To address the registration challenge, most existing methods employ spatial transformations on the HSI to…

Computer Vision and Pattern Recognition · Computer Science 2025-06-26 Kunjing Yang , Libin Zheng , Minru Bai , Ting Lu , Leyuan Fang

Multi-modal object Re-IDentification (ReID) is devoted to retrieving specific objects through the exploitation of complementary multi-modal image information. Existing methods mainly concentrate on the fusion of multi-modal features, yet…

Computer Vision and Pattern Recognition · Computer Science 2025-11-25 Yangyang Liu , Yuhao Wang , Pingping Zhang
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