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Graph learning is often a necessary step in processing or representing structured data, when the underlying graph is not given explicitly. Graph learning is generally performed centrally with a full knowledge of the graph signals, namely…

信号处理 · 电气工程与系统科学 2021-12-14 Isabela Cunha Maia Nobre , Mireille El Gheche , Pascal Frossard

Systematic relations between multiple objects that occur in various fields can be represented as networks. Real-world networks typically exhibit complex topologies whose structural properties are key factors in characterizing and further…

物理与社会 · 物理学 2021-04-09 Yoshihisa Tanaka , Ryosuke Kojima , Shoichi Ishida , Fumiyoshi Yamashita , Yasushi Okuno

We study the epidemic source detection problem in contact tracing networks modeled as a graph-constrained maximum likelihood estimation problem using the susceptible-infected model in epidemiology. Based on a snapshot observation of the…

社会与信息网络 · 计算机科学 2022-02-28 Pei-Duo Yu , Chee Wei Tan , Hung-Lin Fu

This paper has dual aims. First is to develop practical universal coding methods for unlabeled graphs. Second is to use these for graph anomaly detection. The paper develops two coding methods for unlabeled graphs: one based on the degree…

信息论 · 计算机科学 2018-04-10 Anders Host-Madsen , June Zhang

Decentralized Federated Graph Learning (DFGL) overcomes potential bottlenecks of the parameter server in FGL by establishing a peer-to-peer (P2P) communication network among workers. However, while extensive cross-worker communication of…

分布式、并行与集群计算 · 计算机科学 2025-09-11 Shilong Wang , Jianchun Liu , Hongli Xu , Chenxia Tang , Qianpiao Ma , Liusheng Huang

The controller area network (CAN) is the most widely used intra-vehicular communication network in the automotive industry. Because of its simplicity in design, it lacks most of the requirements needed for a security-proven communication…

密码学与安全 · 计算机科学 2020-09-30 Riadul Islam , Rafi Ud Daula Refat , Sai Manikanta Yerram , Hafiz Malik

We consider the problem of minimizing the number of broadcasts for collecting all sensor measurements at a sink node in a noisy broadcast sensor network. Focusing first on arbitrary network topologies, we provide (i) fundamental limits on…

信息论 · 计算机科学 2017-02-01 Yaoqing Yang , Soummya Kar , Pulkit Grover

The smart grid concept has transformed the traditional power grid into a massive cyber-physical system that depends on advanced two-way communication infrastructure to integrate a myriad of different smart devices. While the introduction of…

密码学与安全 · 计算机科学 2018-04-17 Cengiz Kaygusuz , Leonardo Babun , Hidayet Aksu , A. Selcuk Uluagac

Fault detection has a long tradition: the necessity to provide the most accurate diagnosis possible for a process plant criticality is somehow intrinsic in its functioning. Continuous monitoring is a possible way for early detection.…

系统与控制 · 电气工程与系统科学 2024-01-22 Martina Teruzzi , Nicola Demo , Gianluigi Rozza

Integrated sensing and communications (ISAC) systems have gained significant interest because of their ability to jointly and efficiently access, utilize, and manage the scarce electromagnetic spectrum. The co-existence approach toward ISAC…

信息论 · 计算机科学 2023-10-24 Roman Jacome , Edwin Vargas , Kumar Vijay Mishra , Brian M. Sadler , Henry Arguello

In this paper, we develop a new aligned vertex convolutional network model to learn multi-scale local-level vertex features for graph classification. Our idea is to transform the graphs of arbitrary sizes into fixed-sized aligned vertex…

机器学习 · 计算机科学 2019-02-27 Lu Bai , Lixin Cui , Shu Wu , Yuhang Jiao , Edwin R. Hancock

In this survey paper, we analyze image based graph neural networks and propose a three-step classification approach. We first convert the image into superpixels using the Quickshift algorithm so as to reduce 30% of the input data. The…

机器学习 · 计算机科学 2021-06-14 Usman Nazir , He Wang , Murtaza Taj

This is the second part of the paper that provides a new strategy for the heterogeneous change detection (HCD) problem, that is, solving HCD from the perspective of graph signal processing (GSP). We construct a graph to represent the…

计算机视觉与模式识别 · 计算机科学 2022-08-09 Yuli Sun , Lin Lei , Dongdong Guan , Gangyao Kuang , Li Liu

Multi-scale biomedical knowledge networks are expanding with emerging experimental technologies that generates multi-scale biomedical big data. Link prediction is increasingly used especially in bipartite biomedical networks to identify…

社会与信息网络 · 计算机科学 2022-02-25 Jinjiang Guo , Jie Li , Dawei Leng , Lurong Pan

Collaborative fraud, where multiple fraudulent accounts coordinate to exploit online payment systems, poses significant challenges due to the formation of complex network structures. Traditional detection methods that rely solely on…

机器学习 · 计算机科学 2025-12-23 Chi Liu

In this work, we study the problem of partitioning a set of graphs into different groups such that the graphs in the same group are similar while the graphs in different groups are dissimilar. This problem was rarely studied previously,…

机器学习 · 计算机科学 2023-02-07 Jinyu Cai , Yi Han , Wenzhong Guo , Jicong Fan

In today's world, modern infrastructures are being equipped with information and communication technologies to create large IoT networks. It is essential to monitor these networks to ensure smooth operations by detecting and correcting link…

网络与互联网体系结构 · 计算机科学 2026-02-20 Blaž Bertalanič , Matej Vnučec , Carolina Fortuna

With the wide-spread availability of complex relational data, semi-supervised node classification in graphs has become a central machine learning problem. Graph neural networks are a recent class of easy-to-train and accurate methods for…

机器学习 · 计算机科学 2021-06-08 Junteng Jia , Cenk Baykal , Vamsi K. Potluru , Austin R. Benson

In this paper, we propose a spatial graph convolution (GC) to classify signals on a graph. Existing GC methods are limited to using the structural information in the feature space. Additionally, the single step of GCs only uses features on…

计算机视觉与模式识别 · 计算机科学 2021-12-06 Yang Li , Yuichi Tanaka

Distinguishing abnormal nodes from those with normal packet loss in clusters helps reduce the loss of clustered network resources. The detection performance of existing detection schemes is limited by the techniques to quantify node…

系统与控制 · 电气工程与系统科学 2025-05-14 Yingying Huangfu , Tian Bai