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The intrinsically secure communications graph (iS-graph) is a random graph which captures the connections that can be securely established over a large-scale network, in the presence of eavesdroppers. It is based on principles of…

信息论 · 计算机科学 2016-11-18 Pedro C. Pinto , Moe Z. Win

In this work, we aim to effectively characterize the performance of cooperative integrated sensing and communication (ISAC) networks and to reveal how performance metrics relate to network parameters. To this end, we introduce a generalized…

信号处理 · 电气工程与系统科学 2025-05-15 Dongsheng Sui , Cunhua Pan , Hong Ren , Jiahua Wan , Liuchang Zhuo , Jing Jin , Qixing Wang , Jiangzhou Wang

Recently, a novel flexible-antenna technology, called pinching antennas, has attracted growing academic interest. By inserting discrete dielectric materials, pinching antennas can be activated at arbitrary points along waveguides, allowing…

信息论 · 计算机科学 2025-06-02 Weihao Mao , Yang Lu , Yanqing Xu , Bo Ai , Octavia A. Dobre , Dusit Niyato

Hypergraphs, which use hyperedges to capture groupwise interactions among different entities, have gained increasing attention recently for their versatility in effectively modeling real-world networks. In this paper, we study the problem…

数据结构与算法 · 计算机科学 2025-04-04 Haozhe Yin , Kai Wang , Wenjie Zhang , Ying Zhang , Ruijia Wu , Xuemin Lin

Scene Graph Generation (SGG) serves a comprehensive representation of the images for human understanding as well as visual understanding tasks. Due to the long tail bias problem of the object and predicate labels in the available annotated…

计算机视觉与模式识别 · 计算机科学 2022-11-10 Anh Duc Bui , Soyeon Caren Han , Josiah Poon

Graph signal processing (GSP) is an important methodology for studying data residing on irregular structures. As acquired data is increasingly taking the form of multi-way tensors, new signal processing tools are needed to maximally utilize…

信号处理 · 电气工程与系统科学 2020-12-02 Jay S. Stanley , Eric C. Chi , Gal Mishne

Graphs drawn in the plane are ubiquitous, arising from data sets through a variety of methods ranging from GIS analysis to image classification to shape analysis. A fundamental problem in this type of data is comparison: given a set of such…

计算几何 · 计算机科学 2022-10-20 Levent Batakci , Abigail Branson , Bryan Castillo , Candace Todd , Erin Wolf Chambers , Elizabeth Munch

The paper introduces a Signed Generalized Random Dot Product Graph (SGRDPG) model, which is a variant of the Generalized Random Dot Product Graph (GRDPG), where, in addition, edges can be positive or negative. The setting is extended to a…

社会与信息网络 · 计算机科学 2025-07-14 Marianna Pensky

For integrated sensing and communication (ISAC) systems, the channel information essential for communication and sensing tasks fluctuates across different timescales. Specifically, wireless sensing primarily focuses on acquiring path state…

信息论 · 计算机科学 2023-10-18 Zhiqiang Xiao , Yong Zeng , Fuxi Wen , Zaichen Zhang , Derrick Wing Kwan Ng

Scene Graph Generation (SGG) aims to explore the relationships between objects in images and obtain scene summary graphs, thereby better serving downstream tasks. However, the long-tailed problem has adversely affected the scene graph's…

计算机视觉与模式识别 · 计算机科学 2024-07-30 Yansheng Li , Tingzhu Wang , Kang Wu , Linlin Wang , Xin Guo , Wenbin Wang

Peaks and troughs in the subsynchronous impedance spectrum of a distribution feeder may be a useful indication of oscillation risk, or more importantly lack of oscillation risk, if inverter-based resource (IBR) deployments are increased on…

系统与控制 · 电气工程与系统科学 2024-06-21 Lingling Fan , Zhixin Miao , Jason MacDonald , Alex McEachern

We propose PROPAGATE, a fast approximation framework to estimate distance-based metrics on very large graphs such as the (effective) diameter, the (effective) radius, or the average distance within a small error. The framework assigns seeds…

数据结构与算法 · 计算机科学 2023-08-23 Giambattista Amati , Antonio Cruciani , Daniele Pasquini , Paola Vocca , Simone Angelini

This paper develops a multi-port S-parameter framework for the analysis and optimization of stacked intelligent metasurfaces (SIMs) with unilateral active interconnections. By modeling each unit cell as a non-reciprocal two-port network,…

信号处理 · 电气工程与系统科学 2026-05-08 Andrea Abrardo , Giulio Bartoli , Alberto Toccafondi , Marco Di Renzo

Accurate channel modeling in real-time faces remarkable challenge due to the complexities of traditional methods such as ray tracing and field measurements. AI-based techniques have emerged to address these limitations, offering rapid,…

In Generalized Linear Estimation (GLE) problems, we seek to estimate a signal that is observed through a linear transform followed by a component-wise, possibly nonlinear and noisy, channel. In the Bayesian optimal setting, Generalized…

无序系统与神经网络 · 物理学 2021-02-03 Luca Saglietti , Yue M. Lu , Carlo Lucibello

This paper presents a tutorial on stochastic geometry (SG) based analysis for cellular networks. This tutorial is distinguished by its depth with respect to wireless communication details and its focus on cellular networks. The paper starts…

信息论 · 计算机科学 2016-11-15 Hesham ElSawy , Ahmed Sultan-Salem , Mohamed-Slim Alouini , Moe Z. Win

Anomaly detection in high-dimensional time series data is pivotal for numerous industrial applications. Recent advances in multivariate time series anomaly detection (TSAD) have increasingly leveraged graph structures to model…

机器学习 · 计算机科学 2025-09-23 Jiazhen Chen , Mingbin Feng , Tony S. Wirjanto

In this letter, we study efficient channel estimation and passive beamforming designs for a double-intelligent reflecting surface (IRS) aided single-user communication system, where a user communicates with an access point (AP) via the…

信息论 · 计算机科学 2020-08-27 Changsheng You , Beixiong Zheng , Rui Zhang

Edge computing environments host increasingly complex microservice-based IoT applications that are prone to performance anomalies propagating across dependent services. Identifying the faulty component (root cause localization) and the…

分布式、并行与集群计算 · 计算机科学 2026-03-03 Duneesha Fernando , Maria A. Rodriguez , Rajkumar Buyya

Integrated sensing, communication, and powering (ISCAP) has emerged as a promising solution for enabling multi-functionality in 6G networks. However, it poses a significant challenge in the design of multi-functional waveforms that must…

信号处理 · 电气工程与系统科学 2026-03-18 Xiaoxuan Jiang , Yijie Mao