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Identifying a gas source in turbulent environments presents a significant challenge for critical applications such as environmental monitoring and emergency response. This issue is addressed through an approach that combines distributed IoT…

Effective long-term predictions have been increasingly demanded in urban-wise data mining systems. Many practical applications, such as accident prevention and resource pre-allocation, require an extended period for preparation. However,…

Information Retrieval · Computer Science 2020-06-17 Haoxing Lin , Rufan Bai , Weijia Jia , Xinyu Yang , Yongjian You

In this work, we propose a novel approach called Operational Support Estimator Networks (OSENs) for the support estimation task. Support Estimation (SE) is defined as finding the locations of non-zero elements in sparse signals. By its very…

Computer Vision and Pattern Recognition · Computer Science 2024-11-19 Mete Ahishali , Mehmet Yamac , Serkan Kiranyaz , Moncef Gabbouj

Cooperative spectrum sensing is a robust strategy that enhances the detection probability of primary licensed users. However, a large number of detectors reporting to a fusion center for a final decision causes significant delay and also…

Information Theory · Computer Science 2015-05-28 Laila Hesham , Ahmed Sultan , Mohammed Nafie

Crystal orientation mapping experiments typically measure orientations that are similar within grains and misorientations that are similar along grain boundaries. Such (mis)orientation data will cluster in (mis)orientation space and…

Seismic velocity filtering is a critical technique in seismic exploration, designed to enhance the quality of effective signals by suppressing or eliminating interference waves. Traditional transform-domain methods, such as…

Geophysics · Physics 2025-04-29 Xiaobin Li , Qiaomu Qi , Le Li , Rubing Deng

Computing the optimal solution to a spatial filtering problems in a Wireless Sensor Network can incur large bandwidth and computational requirements if an approach relying on data centralization is used. The so-called distributed adaptive…

Signal Processing · Electrical Eng. & Systems 2023-03-01 Charles Hovine , Alexander Bertrand

Integrated sensing and communications (ISAC) is an emerging critical technique for the next generation of communication systems. However, due to multiple performance metrics used for communication and sensing, the limited degrees-of-freedom…

Signal Processing · Electrical Eng. & Systems 2024-01-26 Yongqing Xu , Yong Li , J. Andrew Zhang , Marco Di Renzo , Tony Q. S. Quek

DBSCAN, a well-known density-based clustering algorithm, has gained widespread popularity and usage due to its effectiveness in identifying clusters of arbitrary shapes and handling noisy data. However, it encounters challenges in producing…

Machine Learning · Computer Science 2025-05-09 Hao Peng , Xiang Huang , Shuo Sun , Ruitong Zhang , Philip S. Yu

Effective channel estimation in sparse and high-dimensional environments is essential for next-generation wireless systems, particularly in large-scale MIMO deployments. This paper introduces a novel framework that leverages digital twins…

Signal Processing · Electrical Eng. & Systems 2025-04-10 Sadjad Alikhani , Ahmed Alkhateeb

While network slicing has become a prevalent approach to service differentiation, radio access network (RAN) slicing remains challenging due to the need of substantial adaptivity and flexibility to cope with the highly dynamic network…

Networking and Internet Architecture · Computer Science 2023-08-23 Conghao Zhou , Jie Gao , Mushu Li , Xuemin Shen , Weihua Zhuang , Xu Li , Weisen Shi

Reconfigurable Intelligent Surfaces (RIS) enable dynamic electromagnetic control for 6G networks, but existing control schemes lack responsiveness to fast-varying network conditions, limiting their applicability for ultra-reliable low…

Networking and Internet Architecture · Computer Science 2026-03-12 Oscar Adamuz-Hinojosa , Lanfranco Zanzi , Vincenzo Sciancalepore , Marco Di Renzo , Xavier Costa-Pérez

Spectrum occupancy prediction is a critical enabler for real-time and proactive dynamic spectrum sharing (DSS), as it can provide short-term channel availability information to support more efficient spectrum access decisions in wireless…

Signal Processing · Electrical Eng. & Systems 2026-01-21 Jiayu Mao , Ruoyu Sun , Mark Poletti , Rahil Gandotra , Hao Guo , Aylin Yener

Flexible-antenna systems, which use a small number of radio frequency (RF) chains to dynamically access a large set of candidate antenna locations, have emerged as a hardware-efficient architecture for 6G networks. Acquiring accurate…

Signal Processing · Electrical Eng. & Systems 2026-05-01 Ruoxiao Cao , Wentao Yu , Zixin Wang , Shenghui Song , Jun Zhang , Yi Gong , Khaled B. Letaief

Accurate and robust segmentation of abdominal organs on CT is essential for many clinical applications such as computer-aided diagnosis and computer-aided surgery. But this task is challenging due to the weak boundaries of organs, the…

Computer Vision and Pattern Recognition · Computer Science 2019-04-19 Yan Wang , Yuyin Zhou , Wei Shen , Seyoun Park , Elliot K. Fishman , Alan L. Yuille

Optical flow estimation is an essential step for many real-world computer vision tasks. Existing deep networks have achieved satisfactory results by mostly employing a pyramidal coarse-to-fine paradigm, where a key process is to adopt…

Computer Vision and Pattern Recognition · Computer Science 2021-02-02 Lingtong Kong , Xiaohang Yang , Jie Yang

Distributed Acoustic Sensing (DAS) has been limited in its use for surface-seismic reflection measurements, due to the fiber's decreased sensitivity when the fiber is deployed horizontally. Deploying the fiber in a helically wound fashion…

Geophysics · Physics 2023-04-11 Musab Al Hasani , Guy Drijkoningen

Long-range Rayleigh-based Distributed Acoustic Sensing (DAS) systems are often limited in their sensitivity and bandwidth. The former limitation is a result of the low backscattered power and poor \textit{dynamic-strain to optical-phase}…

Signal Processing · Electrical Eng. & Systems 2020-09-17 Nadav Arbel , Lihi Shiloh , Nadav Levanon , Avishay Eyal

Spectrum sharing and dynamic spectrum reuse are becoming increasingly critical in modern wireless networks to address spectrum scarcity. However, these techniques inevitably increase Cross-Technology Interference (CTI). In this context, the…

Signal Processing · Electrical Eng. & Systems 2026-04-14 Dieter Verbruggen , Hazem Sallouha , Sofie Pollin

In this paper, we look to address the problem of estimating the dynamic direction of arrival (DOA) of a narrowband signal impinging on a sensor array from the far field. The initial estimate is made using a Bayesian compressive sensing…

Machine Learning · Statistics 2015-09-22 Matthew Hawes , Lyudmila Mihaylova , Francois Septier , Simon Godsill