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Backdoor attacks pose a significant security risk to graph learning models. Backdoors can be embedded into the target model by inserting backdoor triggers into the training dataset, causing the model to make incorrect predictions when the…

密码学与安全 · 计算机科学 2023-08-09 Zihan Guan , Mengnan Du , Ninghao Liu

Continuous graph neural networks (CGNNs) have garnered significant attention due to their ability to generalize existing discrete graph neural networks (GNNs) by introducing continuous dynamics. They typically draw inspiration from…

神经与进化计算 · 计算机科学 2025-07-15 Nan Yin , Mengzhu Wan , Li Shen , Hitesh Laxmichand Patel , Baopu Li , Bin Gu , Huan Xiong

Graph Neural Networks (GNNs) are gaining extensive attention for their application in graph data. However, the black-box nature of GNNs prevents users from understanding and trusting the models, thus hampering their applicability. Whereas…

机器学习 · 计算机科学 2023-05-23 Qizhang Feng , Ninghao Liu , Fan Yang , Ruixiang Tang , Mengnan Du , Xia Hu

One intriguing property of deep neural networks (DNNs) is their inherent vulnerability to backdoor attacks -- a trojan model responds to trigger-embedded inputs in a highly predictable manner while functioning normally otherwise. Despite…

机器学习 · 计算机科学 2021-08-11 Zhaohan Xi , Ren Pang , Shouling Ji , Ting Wang

Despite the success of graph neural networks (GNNs), their vulnerability to adversarial attacks poses tremendous challenges for practical applications. Existing defense methods suffer from severe performance decline under unseen attacks,…

机器学习 · 计算机科学 2024-04-26 Shuchang Tao , Qi Cao , Huawei Shen , Yunfan Wu , Bingbing Xu , Xueqi Cheng

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

The exploration of Graph Neural Networks (GNNs) for processing graph-structured data has expanded, particularly their potential for causal analysis due to their universal approximation capabilities. Anticipated to significantly enhance…

机器学习 · 计算机科学 2024-01-30 Simi Job , Xiaohui Tao , Taotao Cai , Lin Li , Haoran Xie , Jianming Yong

Graph Neural Networks (GNNs) have gained popularity in numerous domains, yet they are vulnerable to backdoor attacks that can compromise their performance and ethical application. The detection of these attacks is crucial for maintaining…

机器学习 · 计算机科学 2026-05-12 Jane Downer , Ren Wang , Binghui Wang

Graph Neural Networks (GNNs) have become increasingly ubiquitous in numerous applications and systems, necessitating explanations of their predictions, especially when making critical decisions. However, explaining GNNs is challenging due…

机器学习 · 计算机科学 2022-10-21 Tien-Cuong Bui , Van-Duc Le , Wen-syan Li , Sang Kyun Cha

Graph Neural Networks (GNNs) have shown remarkable capabilities in learning from graph-structured data with various applications such as social analysis and bioinformatics. However, the presence of label noise in real scenarios poses a…

机器学习 · 计算机科学 2026-01-27 Wei Ju , Wei Zhang , Siyu Yi , Zhengyang Mao , Yifan Wang , Jingyang Yuan , Zhiping Xiao , Ziyue Qiao , Ming Zhang

The success of Graph Neural Networks (GNNs) has led to a need for understanding their decision-making process and providing explanations for their predictions, which has given rise to explainable AI (XAI) that offers transparent…

机器学习 · 计算机科学 2024-02-21 Sangwoo Seo , Sungwon Kim , Chanyoung Park

Vulnerability detection is a critical problem in software security and attracts growing attention both from academia and industry. Traditionally, software security is safeguarded by designated rule-based detectors that heavily rely on…

软件工程 · 计算机科学 2024-06-07 Tiehua Zhang , Rui Xu , Jianping Zhang , Yuze Liu , Xin Chen , Jun Yin , Xi Zheng

Explainable Recommender Systems is an important field of study which provides reasons behind the suggested recommendations. Explanations with recommender systems are useful for developers while debugging anomalies within the system and for…

信息检索 · 计算机科学 2025-03-11 Sairamvinay Vijayaraghavan , Prasant Mohapatra

Detecting vulnerabilities in source code is a critical task for software security assurance. Graph Neural Network (GNN) machine learning can be a promising approach by modeling source code as graphs. Early approaches treated code elements…

密码学与安全 · 计算机科学 2025-02-25 Yu Luo , Weifeng Xu , Dianxiang Xu

When engaging in end-to-end graph representation learning with Graph Neural Networks (GNNs), the intricate causal relationships and rules inherent in graph data pose a formidable challenge for the model in accurately capturing authentic…

机器学习 · 计算机科学 2024-06-14 Hang Gao , Peng Qiao , Yifan Jin , Fengge Wu , Jiangmeng Li , Changwen Zheng

Graph neural networks (GNNs) are widely used in many applications. However, their robustness against adversarial attacks is criticized. Prior studies show that using unnoticeable modifications on graph topology or nodal features can…

机器学习 · 计算机科学 2020-02-27 Xianfeng Tang , Yandong Li , Yiwei Sun , Huaxiu Yao , Prasenjit Mitra , Suhang Wang

The vulnerability to adversarial perturbations is a major flaw of Deep Neural Networks (DNNs) that raises question about their reliability when in real-world scenarios. On the other hand, human perception, which DNNs are supposed to…

机器学习 · 计算机科学 2023-08-09 Muhammad Ahmed Shah , Bhiksha Raj

Graphs can represent relational information among entities and graph structures are widely used in many intelligent tasks such as search, recommendation, and question answering. However, most of the graph-structured data in practice suffers…

信息检索 · 计算机科学 2021-12-30 Hanxiong Chen , Yunqi Li , Shaoyun Shi , Shuchang Liu , He Zhu , Yongfeng Zhang

Graph neural networks (GNNs) provide important prospective insights in applications such as social behavior analysis and financial risk analysis based on their powerful learning capabilities on graph data. Nevertheless, GNNs' predictive…

机器学习 · 计算机科学 2024-12-23 Yuecen Wei , Xingcheng Fu , Lingyun Liu , Qingyun Sun , Hao Peng , Chunming Hu

Graph Neural Networks (GNNs) have advanced significantly in handling graph-structured data, but a comprehensive framework for evaluating explainability remains lacking. Existing evaluation frameworks primarily involve post-hoc explanations,…

机器学习 · 计算机科学 2026-05-18 Magdalena Proszewska , N. Siddharth