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Graph-structured data exist in numerous applications in real life. As a state-of-the-art graph neural network, the graph convolutional network (GCN) plays an important role in processing graph-structured data. However, a recent study…

机器学习 · 计算机科学 2020-12-01 Jiazhu Dai , Weifeng Zhu , Xiangfeng Luo

Although link prediction on graphs has achieved great success with the development of graph neural networks (GNNs), the potential robustness under the edge noise is still less investigated. To close this gap, we first conduct an empirical…

机器学习 · 计算机科学 2023-11-03 Zhanke Zhou , Jiangchao Yao , Jiaxu Liu , Xiawei Guo , Quanming Yao , Li He , Liang Wang , Bo Zheng , Bo Han

Graph neural networks (GNNs) are prominent for their effectiveness in processing graph data for semi-supervised node classification tasks. Most works of GNNs assume that the observed structure accurately represents the underlying node…

机器学习 · 计算机科学 2024-11-08 Shuangjie Li , Jiangqing Song , Baoming Zhang , Gaoli Ruan , Junyuan Xie , Chongjun Wang

Although Graph Neural Networks (GNNs) have shown promising potential in fake news detection, they remain highly vulnerable to adversarial manipulations within social networks. Existing methods primarily establish connections between…

社会与信息网络 · 计算机科学 2025-05-22 Xianghua Zeng , Hao Peng , Angsheng Li

Real-time traffic prediction models play a pivotal role in smart mobility systems and have been widely used in route guidance, emerging mobility services, and advanced traffic management systems. With the availability of massive traffic…

机器学习 · 计算机科学 2021-04-20 Lyuyi Zhu , Kairui Feng , Ziyuan Pu , Wei Ma

Deep learning is effective in graph analysis. It is widely applied in many related areas, such as link prediction, node classification, community detection, and graph classification etc. Graph embedding, which learns low-dimensional…

机器学习 · 计算机科学 2021-02-25 Jinyin Chen , Xiang Lin , Dunjie Zhang , Wenrong Jiang , Guohan Huang , Hui Xiong , Yun Xiang

Fairness-aware graph neural networks (GNNs) have gained a surge of attention as they can reduce the bias of predictions on any demographic group (e.g., female) in graph-based applications. Although these methods greatly improve the…

机器学习 · 计算机科学 2024-03-05 Binchi Zhang , Yushun Dong , Chen Chen , Yada Zhu , Minnan Luo , Jundong Li

Signature-based botnet detection methods identify botnets by recognizing Command and Control (C\&C) traffic and can be ineffective for botnets that use new and sophisticate mechanisms for such communications. To address these limitations,…

社会与信息网络 · 计算机科学 2015-03-10 Jing Wang , Ioannis Ch. Paschalidis

Current graph neural network (GNN) architectures naively average or sum node embeddings into an aggregated graph representation -- potentially losing structural or semantic information. We here introduce OT-GNN, a model that computes graph…

机器学习 · 统计学 2021-10-12 Benson Chen , Gary Bécigneul , Octavian-Eugen Ganea , Regina Barzilay , Tommi Jaakkola

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

This paper proposes a novel method for online Multi-Object Tracking (MOT) using Graph Convolutional Neural Network (GCNN) based feature extraction and end-to-end feature matching for object association. The Graph based approach incorporates…

计算机视觉与模式识别 · 计算机科学 2021-04-19 Ioannis Papakis , Abhijit Sarkar , Anuj Karpatne

The significant increase in world population and urbanisation has brought several important challenges, in particular regarding the sustainability, maintenance and planning of urban mobility. At the same time, the exponential increase of…

机器学习 · 计算机科学 2021-04-28 João Rico , José Barateiro , Arlindo Oliveira

Despite their success in various domains, the growing dependence on GNNs raises a critical concern about the nature of the combinatorial reasoning underlying their predictions, which is often hidden within their black-box architectures.…

机器学习 · 计算机科学 2026-03-03 Yue Niu , Zhaokai Sun , Jiayi Yang , Xiaofeng Cao , Rui Fan , Xin Sun , Hanli Wang , Wei Ye

Graph-based data present unique challenges and opportunities for machine learning. Graph Neural Networks (GNNs), and especially those algorithms that capture graph topology through message passing for neighborhood aggregation, have been a…

机器学习 · 计算机科学 2024-04-19 Zheyi Qin , Randy Paffenroth , Anura P. Jayasumana

Graph Neural Networks (GNNs) have become indispensable tools for learning from graph structured data, catering to various applications such as social network analysis and fraud detection for financial services. At the heart of these…

密码学与安全 · 计算机科学 2025-06-02 Zeyu Song , Ehsanul Kabir , Shagufta Mehnaz

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…

机器学习 · 计算机科学 2025-10-21 Mingchen Li , Di Zhuang , Keyu Chen , Dumindu Samaraweera , Morris Chang

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…

密码学与安全 · 计算机科学 2024-10-21 Hao Sui , Bing Chen , Jiale Zhang , Chengcheng Zhu , Di Wu , Qinghua Lu , Guodong Long

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

Dynamic graph neural network (DGNN) is becoming increasingly popular because of its widespread use in capturing dynamic features in the real world. A variety of dynamic graph neural networks designed from algorithmic perspectives have…

硬件体系结构 · 计算机科学 2023-04-17 Hanqiu Chen , Yahya Alhinai , Yihan Jiang , Eunjee Na , Cong Hao

Nowadays, botnets have become one of the major threats to cyber security. The characteristics of botnets are mainly reflected in bots network behavior and their intercommunication relationships. Existing botnet detection methods use flow…

密码学与安全 · 计算机科学 2024-03-26 Meng Xiaoyuan , Lang bo , Yanxi Liu , Yuhao Yan