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Hauptverfasser: Li, Mingchen, Zhuang, Di, Chen, Keyu, Samaraweera, Dumindu, Chang, Morris
Format: Preprint
Veröffentlicht: 2025
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Online-Zugang:https://arxiv.org/abs/2504.06492
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author Li, Mingchen
Zhuang, Di
Chen, Keyu
Samaraweera, Dumindu
Chang, Morris
author_facet Li, Mingchen
Zhuang, Di
Chen, Keyu
Samaraweera, Dumindu
Chang, Morris
contents 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 recommendation systems, community/social networks, and biological structures. However, recent research has highlighted the vulnerability of GNN models to adversarial attacks, such as poisoning and evasion attacks. Addressing the vulnerability of GNN models is crucial to ensure stable and robust performance in GNN applications. Although many works have focused on enhancing the robustness of node classification on GNN models, the robustness of link prediction has received less attention. To bridge this gap, this article introduces an unweighted graph poisoning attack that leverages meta-learning with weighted scheme strategies to degrade the link prediction performance of GNNs. We conducted comprehensive experiments on diverse datasets across multiple link prediction applications to evaluate the proposed method and its parameters, comparing it with existing approaches under similar conditions. Our results demonstrate that our approach significantly reduces link prediction performance and consistently outperforms other state-of-the-art baselines.
format Preprint
id arxiv_https___arxiv_org_abs_2504_06492
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Exploiting Meta-Learning-based Poisoning Attacks for Graph Link Prediction
Li, Mingchen
Zhuang, Di
Chen, Keyu
Samaraweera, Dumindu
Chang, Morris
Machine Learning
Artificial Intelligence
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 recommendation systems, community/social networks, and biological structures. However, recent research has highlighted the vulnerability of GNN models to adversarial attacks, such as poisoning and evasion attacks. Addressing the vulnerability of GNN models is crucial to ensure stable and robust performance in GNN applications. Although many works have focused on enhancing the robustness of node classification on GNN models, the robustness of link prediction has received less attention. To bridge this gap, this article introduces an unweighted graph poisoning attack that leverages meta-learning with weighted scheme strategies to degrade the link prediction performance of GNNs. We conducted comprehensive experiments on diverse datasets across multiple link prediction applications to evaluate the proposed method and its parameters, comparing it with existing approaches under similar conditions. Our results demonstrate that our approach significantly reduces link prediction performance and consistently outperforms other state-of-the-art baselines.
title Exploiting Meta-Learning-based Poisoning Attacks for Graph Link Prediction
topic Machine Learning
Artificial Intelligence
url https://arxiv.org/abs/2504.06492