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Graph neural networks (GNNs) are a class of effective deep learning models for node classification tasks; yet their predictive capability may be severely compromised under adversarially designed unnoticeable perturbations to the graph…

机器学习 · 计算机科学 2023-01-05 Xiao Zang , Jie Chen , Bo Yuan

Node injection attacks on Graph Neural Networks (GNNs) have received increasing attention recently, due to their ability to degrade GNN performance with high attack success rates. However, our study indicates that these attacks often fail…

机器学习 · 计算机科学 2023-09-26 Shuchang Tao , Qi Cao , Huawei Shen , Yunfan Wu , Liang Hou , Fei Sun , Xueqi Cheng

Graph Neural Networks (GNNs) have boosted the performance of many graph related tasks such as node classification and graph classification. Recent researches show that graph neural networks are vulnerable to adversarial attacks, which…

机器学习 · 计算机科学 2019-10-01 Yao Ma , Suhang Wang , Tyler Derr , Lingfei Wu , Jiliang Tang

Graph is an important data representation ubiquitously existing in the real world. However, analyzing the graph data is computationally difficult due to its non-Euclidean nature. Graph embedding is a powerful tool to solve the graph…

密码学与安全 · 计算机科学 2021-10-07 Zhikun Zhang , Min Chen , Michael Backes , Yun Shen , Yang Zhang

Temporal Graph Neural Networks (TGNNs) have become indispensable for analyzing dynamic graphs in critical applications such as social networks, communication systems, and financial networks. However, the robustness of TGNNs against…

Graph neural networks (GNNs) are widely used for learning from graph-structured data in domains such as social networks, recommender systems, and financial platforms. To comply with privacy regulations like the GDPR, CCPA, and PIPEDA,…

机器学习 · 计算机科学 2026-03-20 Jiahao Zhang , Yilong Wang , Suhang Wang

Graph neural networks (GNNs) have become instrumental in diverse real-world applications, offering powerful graph learning capabilities for tasks such as social networks and medical data analysis. Despite their successes, GNNs are…

机器学习 · 计算机科学 2024-06-13 Peizhi Niu , Chao Pan , Siheng Chen , Olgica Milenkovic

Graph Neural Networks (GNNs) have received significant attention due to their state-of-the-art performance on various graph representation learning tasks. However, recent studies reveal that GNNs are vulnerable to adversarial attacks, i.e.…

机器学习 · 计算机科学 2024-10-28 Haoxi Zhan , Xiaobing Pei

Graph Neural Networks (GNNs) have drawn significant attentions over the years and been broadly applied to essential applications requiring solid robustness or vigorous security standards, such as product recommendation and user behavior…

机器学习 · 计算机科学 2022-11-28 Mingxuan Ju , Yujie Fan , Chuxu Zhang , Yanfang Ye

As the study of graph neural networks becomes more intensive and comprehensive, their robustness and security have received great research interest. The existing global attack methods treat all nodes in the graph as their attack targets.…

机器学习 · 计算机科学 2024-12-03 Guanghui Zhu , Mengyu Chen , Chunfeng Yuan , Yihua Huang

Graph neural networks (GNNs) are widely used for graph-structured data but are vulnerable to membership inference attacks (MIAs) in graph classification tasks, which determine if a graph was part of the training dataset, potentially causing…

机器学习 · 计算机科学 2025-03-27 Jiazhu Dai , Yubing Lu

Graph Neural Networks (GNNs), inspired by Convolutional Neural Networks (CNNs), aggregate the message of nodes' neighbors and structure information to acquire expressive representations of nodes for node classification, graph…

密码学与安全 · 计算机科学 2022-07-29 Mauro Conti , Jiaxin Li , Stjepan Picek , Jing Xu

Large Language Models (LLMs) are increasingly integrated with graph-structured data for tasks like node classification, a domain traditionally dominated by Graph Neural Networks (GNNs). While this integration leverages rich relational…

密码学与安全 · 计算机科学 2025-08-08 Iyiola E. Olatunji , Franziska Boenisch , Jing Xu , Adam Dziedzic

In this paper, a novel graph-theoretic framework is proposed to generalize the analysis of a broad set of security attacks, including observability and data injection attacks, that target the state estimator of a smart grid. First, the…

系统与控制 · 计算机科学 2020-02-05 Anibal Sanjab , Walid Saad , Tamer Başar

Graph neural network (GNN) have demonstrated exceptional performance in solving critical problems across diverse domains yet remain susceptible to backdoor attacks. Existing studies on backdoor attack for graph classification are limited to…

机器学习 · 计算机科学 2026-04-09 Md Nabi Newaz Khan , Abdullah Arafat Miah , Yu Bi

With the increasing popularity of graph-based learning, graph neural networks (GNNs) emerge as the essential tool for gaining insights from graphs. However, unlike the conventional CNNs that have been extensively explored and exhaustively…

机器学习 · 计算机科学 2020-09-23 Boyuan Feng , Yuke Wang , Zheng Wang , Yufei Ding

Graph Neural Networks (GNNs) have led to state-of-the-art performance on a variety of machine learning tasks such as recommendation, node classification and link prediction. Graph neural network models generate node embeddings by merging…

机器学习 · 计算机科学 2020-11-04 Yunpeng Weng , Xu Chen , Liang Chen , Wei Liu

Graph Neural Networks (GNNs) have demonstrated remarkable utility across diverse applications, and their growing complexity has made Machine Learning as a Service (MLaaS) a viable platform for scalable deployment. However, this…

机器学习 · 计算机科学 2025-07-09 Zebin Wang , Menghan Lin , Bolin Shen , Ken Anderson , Molei Liu , Tianxi Cai , Yushun Dong

Graph Neural Networks (GNNs), a generalization of neural networks to graph-structured data, are often implemented using message passes between entities of a graph. While GNNs are effective for node classification, link prediction and graph…

机器学习 · 统计学 2020-10-01 Uday Shankar Shanthamallu , Jayaraman J. Thiagarajan , Andreas Spanias

Graph Neural Networks (GNNs) have emerged as the dominant approach for machine learning on graph-structured data. However, concerns have arisen regarding the vulnerability of GNNs to small adversarial perturbations. Existing defense methods…