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Related papers: Robustness Inspired Graph Backdoor Defense

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Deep neural networks (DNNs) have achieved significant performance in various tasks. However, recent studies have shown that DNNs can be easily fooled by small perturbation on the input, called adversarial attacks. As the extensions of DNNs…

Machine Learning · Computer Science 2020-12-15 Wei Jin , Yaxin Li , Han Xu , Yiqi Wang , Shuiwang Ji , Charu Aggarwal , Jiliang Tang

Graph Neural Networks (GNNs) have emerged as a dominant paradigm for learning on graph-structured data, thanks to their ability to jointly exploit node features and relational information encoded in the graph topology. This joint modeling,…

Machine Learning · Computer Science 2025-12-30 Yongyu Wang

Recent studies have shown that graph neural networks (GNNs) are vulnerable to adversarial attacks, posing significant challenges to their deployment in safety-critical scenarios. This vulnerability has spurred a growing focus on designing…

Machine Learning · Computer Science 2025-05-27 Tao Wu , Canyixing Cui , Xingping Xian , Shaojie Qiao , Chao Wang , Lin Yuan , Shui Yu

Graph neural networks (GNNs) have been widely used in many real applications, and recent studies have revealed their vulnerabilities against topology attacks. To address this issue, existing efforts have mainly been dedicated to improving…

Machine Learning · Computer Science 2022-04-27 Senrong Xu , Yuan Yao , Liangyue Li , Wei Yang , Feng Xu , Hanghang Tong

Recent studies have revealed that GNNs are highly susceptible to multiple adversarial attacks. Among these, graph backdoor attacks pose one of the most prominent threats, where attackers cause models to misclassify by learning the…

Cryptography and Security · Computer Science 2024-10-21 Hao Sui , Bing Chen , Jiale Zhang , Chengcheng Zhu , Di Wu , Qinghua Lu , Guodong Long

Graph neural networks (GNNs) have achieved remarkable success in relational learning. However, their vulnerability to graph backdoor attacks (GBAs) poses a significant barrier to broader adoption in high-stakes applications. Despite recent…

Cryptography and Security · Computer Science 2026-05-26 Mengting Pan , Fan Li , Chen Chen , Xiaoyang Wang

Extensive research has highlighted the vulnerability of graph neural networks (GNNs) to adversarial attacks, including manipulation, node injection, and the recently emerging threat of backdoor attacks. However, existing defenses typically…

Machine Learning · Computer Science 2025-10-20 Yuyuan Feng , Bin Ma , Enyan Dai

Graph Convolutional Networks (GCNs) have shown excellent performance in dealing with various graph structures such as node classification, graph classification and other tasks. However,recent studies have shown that GCNs are vulnerable to a…

Artificial Intelligence · Computer Science 2024-04-22 Jiazhu Dai , Haoyu Sun

Graph Neural Networks (GNNs) have recently been widely adopted in multiple domains. Yet, they are notably vulnerable to adversarial and backdoor attacks. In particular, backdoor attacks based on subgraph insertion have been shown to be…

Cryptography and Security · Computer Science 2024-06-18 Dingqiang Yuan , Xiaohua Xu , Lei Yu , Tongchang Han , Rongchang Li , Meng Han

Link prediction in graph data uses various algorithms and Graph Nerual Network (GNN) models to predict potential relationships between graph nodes. These techniques have found widespread use in numerous real-world applications, including…

Machine Learning · Computer Science 2025-10-21 Mingchen Li , Di Zhuang , Keyu Chen , Dumindu Samaraweera , Morris Chang

Graph neural network (GNN) with a powerful representation capability has been widely applied to various areas, such as biological gene prediction, social recommendation, etc. Recent works have exposed that GNN is vulnerable to the backdoor…

Machine Learning · Computer Science 2023-05-30 Haibin Zheng , Haiyang Xiong , Jinyin Chen , Haonan Ma , Guohan Huang

A cursory reading of the literature suggests that we have made a lot of progress in designing effective adversarial defenses for Graph Neural Networks (GNNs). Yet, the standard methodology has a serious flaw - virtually all of the defenses…

Machine Learning · Computer Science 2023-02-01 Felix Mujkanovic , Simon Geisler , Stephan Günnemann , Aleksandar Bojchevski

The last few years have seen an increasing wave of attacks with serious economic and privacy damages, which evinces the need for accurate Network Intrusion Detection Systems (NIDS). Recent works propose the use of Machine Learning (ML)…

Cryptography and Security · Computer Science 2021-08-02 David Pujol-Perich , José Suárez-Varela , Albert Cabellos-Aparicio , Pere Barlet-Ros

Graph Neural Networks (GNNs) have achieved remarkable results in various tasks. Recent studies reveal that graph backdoor attacks can poison the GNN model to predict test nodes with triggers attached as the target class. However, apart from…

Machine Learning · Computer Science 2026-04-15 Yuxiang Zhang , Bin Ma , Enyan Dai

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…

Machine Learning · Computer Science 2026-04-09 Md Nabi Newaz Khan , Abdullah Arafat Miah , Yu Bi

Graph neural networks (GNNs) which apply the deep neural networks to graph data have achieved significant performance for the task of semi-supervised node classification. However, only few work has addressed the adversarial robustness of…

Machine Learning · Computer Science 2019-10-16 Kaidi Xu , Hongge Chen , Sijia Liu , Pin-Yu Chen , Tsui-Wei Weng , Mingyi Hong , Xue Lin

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…

Machine Learning · Statistics 2020-10-01 Uday Shankar Shanthamallu , Jayaraman J. Thiagarajan , Andreas Spanias

Graph Neural Networks (GNNs) have achieved tremendous success in many graph mining tasks benefitting from the message passing strategy that fuses the local structure and node features for better graph representation learning. Despite the…

Cryptography and Security · Computer Science 2022-07-06 Shuiqiao Yang , Bao Gia Doan , Paul Montague , Olivier De Vel , Tamas Abraham , Seyit Camtepe , Damith C. Ranasinghe , Salil S. Kanhere

Graph Neural Networks (GNNs) have been widely applied to different tasks such as bioinformatics, drug design, and social networks. However, recent studies have shown that GNNs are vulnerable to adversarial attacks which aim to mislead the…

Machine Learning · Computer Science 2022-12-29 Xiaojun Xu , Yue Yu , Hanzhang Wang , Alok Lal , Carl A. Gunter , Bo Li

Recent studies show that graph neural networks (GNNs) are vulnerable to backdoor attacks. Existing backdoor attacks against GNNs use fixed-pattern triggers and lack reasonable trigger constraints, overlooking individual graph…

Machine Learning · Computer Science 2025-03-13 Xuewen Dong , Jiachen Li , Shujun Li , Zhichao You , Qiang Qu , Yaroslav Kholodov , Yulong Shen