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Recent years have witnessed the emergence and development of graph neural networks (GNNs), which have been shown as a powerful approach for graph representation learning in many tasks, such as node classification and graph classification.…

机器学习 · 计算机科学 2020-05-26 Haoteng Tang , Guixiang Ma , Yurong Chen , Lei Guo , Wei Wang , Bo Zeng , Liang Zhan

Adversarial attacks on Graph Neural Networks (GNNs) reveal their security vulnerabilities, limiting their adoption in safety-critical applications. However, existing attack strategies rely on the knowledge of either the GNN model being used…

机器学习 · 计算机科学 2022-12-09 Kartik Sharma , Samidha Verma , Sourav Medya , Arnab Bhattacharya , Sayan Ranu

Despite the recent advances of graph neural networks (GNNs) in modeling graph data, the training of GNNs on large datasets is notoriously hard due to the overfitting. Adversarial training, which augments data with the worst-case adversarial…

机器学习 · 计算机科学 2021-10-29 Haotian Xue , Kaixiong Zhou , Tianlong Chen , Kai Guo , Xia Hu , Yi Chang , Xin Wang

Graph Neural Networks (GNNs) have garnered significant attention from researchers due to their outstanding performance in handling graph-related tasks, such as social network analysis, protein design, and so on. Despite their widespread…

密码学与安全 · 计算机科学 2025-01-03 Xiao Lin , Mingjie Li , Yisen Wang

While the use of graph-structured data in various fields is becoming increasingly popular, it also raises concerns about the potential unauthorized exploitation of personal data for training commercial graph neural network (GNN) models,…

机器学习 · 计算机科学 2023-03-07 Yixin Liu , Chenrui Fan , Pan Zhou , Lichao Sun

Graph Neural Networks (GNNs), which generalize traditional deep neural networks on graph data, have achieved state-of-the-art performance on several graph analytical tasks. We focus on how trained GNN models could leak information about the…

机器学习 · 计算机科学 2021-12-21 Iyiola E. Olatunji , Wolfgang Nejdl , Megha Khosla

Predictions made by graph neural networks (GNNs) usually lack interpretability due to their complex computational behavior and the abstract nature of graphs. In an attempt to tackle this, many GNN explanation methods have emerged. Their…

机器学习 · 计算机科学 2024-10-21 Zhong Li , Simon Geisler , Yuhang Wang , Stephan Günnemann , Matthijs van Leeuwen

In this paper, we proposed a general framework for data poisoning attacks to graph-based semi-supervised learning (G-SSL). In this framework, we first unify different tasks, goals, and constraints into a single formula for data poisoning…

机器学习 · 计算机科学 2019-11-01 Xuanqing Liu , Si Si , Xiaojin Zhu , Yang Li , Cho-Jui Hsieh

Graph Neural Networks (GNNs) have been widely studied for graph data representation and learning. However, existing GNNs generally conduct context-aware learning on node feature representation only which usually ignores the learning of edge…

机器学习 · 计算机科学 2019-10-07 Bo Jiang , Leiling Wang , Jin Tang , Bin Luo

Graph neural networks (GNN) based collaborative filtering (CF) have attracted increasing attention in e-commerce and social media platforms. However, there still lack efforts to evaluate the robustness of such CF systems in deployment.…

信息检索 · 计算机科学 2022-08-23 Yongwei Wang , Yong Liu , Zhiqi Shen

Graph unlearning methods aim to efficiently remove the impact of sensitive data from trained GNNs without full retraining, assuming that deleted information cannot be recovered. In this work, we challenge this assumption by introducing the…

机器学习 · 计算机科学 2025-12-09 Jiahao Zhang , Yilong Wang , Zhiwei Zhang , Xiaorui Liu , Suhang Wang

Graph Neural Networks (GNNs) has been widely used in a variety of fields because of their great potential in representing graph-structured data. However, lacking of rigorous uncertainty estimations limits their application in high-stakes.…

机器学习 · 计算机科学 2025-01-07 Ting Wang , Zhixin Zhou , Rui Luo

Neural Architecture Search (NAS) methods have shown to output networks that largely outperform human-designed networks. However, conventional NAS methods have mostly tackled the single dataset scenario, incuring in a large computational…

计算机视觉与模式识别 · 计算机科学 2024-05-14 Sofia Casarin , Oswald Lanz , Sergio Escalera

Graph Neural Networks (GNNs) have achieved state-of-the-art performance in various graph structure related tasks such as node classification and graph classification. However, GNNs are vulnerable to adversarial attacks. Existing works…

机器学习 · 计算机科学 2021-09-28 Jiaming Mu , Binghui Wang , Qi Li , Kun Sun , Mingwei Xu , Zhuotao Liu

Edge intelligence has arisen as a promising computing paradigm for supporting miscellaneous smart applications that rely on machine learning techniques. While the community has extensively investigated multi-tier edge deployment for…

分布式、并行与集群计算 · 计算机科学 2022-11-01 Liekang Zeng , Chongyu Yang , Peng Huang , Zhi Zhou , Shuai Yu , Xu Chen

Temporal Graph Neural Networks (TGNNs) are increasingly used in high-stakes domains, such as financial forecasting, recommendation systems, and fraud detection. However, their susceptibility to poisoning attacks poses a critical security…

机器学习 · 计算机科学 2025-11-11 Himanshu Pal , Venkata Sai Pranav Bachina , Ankit Gangwal , Charu Sharma

Graph neural networks (GNNs) have emerged as a popular strategy for handling non-Euclidean data due to their state-of-the-art performance. However, most of the current GNN model designs mainly focus on task accuracy, lacking in considering…

机器学习 · 计算机科学 2023-04-14 Ao Zhou , Jianlei Yang , Yingjie Qi , Yumeng Shi , Tong Qiao , Weisheng Zhao , Chunming Hu

Deep neural networks (DNNs) are vulnerable to adversarial examples obtained by adding small perturbations to original examples. The added perturbations in existing attacks are mainly determined by the gradient of the loss function with…

密码学与安全 · 计算机科学 2023-06-06 Chen Wan , Fangjun Huang

In light of rising cybersecurity threats, data center providers face growing pressure to protect their own management infrastructure from Distributed Denial-of-Service (DDoS) attacks. While tenant-managed cages generally fall outside the…

密码学与安全 · 计算机科学 2026-03-17 Kartikeya Sharma , Craig Jacobik

This paper studies the vulnerability of Graph Neural Networks (GNNs) to adversarial attacks on node features and graph structure. Various methods have implemented adversarial training to augment graph data, aiming to bolster the robustness…

机器学习 · 计算机科学 2025-09-03 Jinluan Yang , Ruihao Zhang , Zhengyu Chen , Fei Wu , Kun Kuang