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Graph unlearning has emerged as a pivotal research area for ensuring privacy protection, given the widespread adoption of Graph Neural Networks (GNNs) in applications involving sensitive user data. Among existing studies, certified graph…

Machine Learning · Computer Science 2025-02-19 Lu Yi , Zhewei Wei

Federated graph learning is a widely recognized technique that promotes collaborative training of graph neural networks (GNNs) by multi-client graphs.However, existing approaches heavily rely on the communication of model parameters or…

Machine Learning · Computer Science 2025-05-06 Hao Zhang , Xunkai Li , Yinlin Zhu , Lianglin Hu

Graph neural networks (GNNs) are increasingly used to model complex patterns in graph-structured data. However, enabling them to "forget" designated information remains challenging, especially under privacy regulations such as the GDPR.…

Machine Learning · Computer Science 2025-12-09 Imran Ahsan , Hyunwook Yu , Jinsung Kim , Mucheol Kim

Graph federated learning (GFL) facilitates decentralized training on distributed graph data while keeping sensitive user information local, aligning with policies such as GDPR and CCPA that grant users the right to freely join or withdraw…

Machine Learning · Computer Science 2026-05-05 Ruotong Ma , Wentao Yu , Qizhou Wang , Jie Yang , Chen Gong

With the greater emphasis on privacy and security in our society, the problem of graph unlearning -- revoking the influence of specific data on the trained GNN model, is drawing increasing attention. However, ranging from machine unlearning…

Machine Learning · Computer Science 2023-04-07 Jiancan Wu , Yi Yang , Yuchun Qian , Yongduo Sui , Xiang Wang , Xiangnan He

The development of artificial intelligence demands that models incrementally update knowledge by Continual Learning (CL) to adapt to open-world environments. To meet privacy and security requirements, Continual Unlearning (CU) emerges as an…

Graph neural networks (GNNs) are widely used for learning from graph-structured data in domains such as social networks, recommender systems, and financial platforms. To comply with privacy regulations like the GDPR, CCPA, and PIPEDA,…

Machine Learning · Computer Science 2026-03-20 Jiahao Zhang , Yilong Wang , Suhang Wang

Graph unlearning emerges as a crucial advancement in the pursuit of responsible AI, providing the means to remove sensitive data traces from trained models, thereby upholding the \textit{right to be forgotten}. It is evident that graph…

Machine Learning · Computer Science 2025-10-16 Anwar Said , Ngoc N. Tran , Yuying Zhao , Tyler Derr , Mudassir Shabbir , Waseem Abbas , Xenofon Koutsoukos

The increasing prevalence of large-scale graphs poses a significant challenge for graph neural network training, attributed to their substantial computational requirements. In response, graph condensation (GC) emerges as a promising…

Machine Learning · Computer Science 2025-01-24 Xinyi Gao , Guanhua Ye , Tong Chen , Wentao Zhang , Junliang Yu , Hongzhi Yin

Modern privacy regulations have spurred the evolution of machine unlearning, a technique that enables the removal of data from an already trained ML model without requiring retraining from scratch. Previous unlearning methods tend to induce…

Machine Learning · Computer Science 2025-05-05 Haoxuan Ji , Zheng Lin , Yuyao Sun , Gao Fei , Yuhang Wang , Haichang Gao , Zhenxing Niu

Machine unlearning is an emerging technology that has come to attract widespread attention. A number of factors, including regulations and laws, privacy, and usability concerns, have resulted in this need to allow a trained model to forget…

Machine Learning · Computer Science 2024-06-18 Heng Xu , Tianqing Zhu , Lefeng Zhang , Wanlei Zhou , Wei Zhao

Machine unlearning for text-to-image diffusion models aims to selectively remove undesirable concepts from pre-trained models without costly retraining. Current unlearning methods share a common weakness: erased concepts return when the…

Computer Vision and Pattern Recognition · Computer Science 2026-04-24 Aljalila Aladawi , Mohammed Talha Alam , Fakhri Karray

Graph condensation (GC), which reduces the size of a large-scale graph by synthesizing a small-scale condensed graph as its substitution, has benefited various graph learning tasks. However, existing GC methods rely on centralized data…

Machine Learning · Computer Science 2024-12-23 Bo Yan , Sihao He , Cheng Yang , Shang Liu , Yang Cao , Chuan Shi

The growing concern over training data privacy has elevated the "Right to be Forgotten" into a critical requirement, thereby raising the demand for effective Machine Unlearning. However, existing unlearning approaches commonly suffer from a…

Machine Learning · Computer Science 2026-02-20 Haoyu Wang , Zhuo Huang , Xiaolong Wang , Bo Han , Zhiwei Lin , Tongliang Liu

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…

Machine Learning · Computer Science 2025-12-09 Jiahao Zhang , Yilong Wang , Zhiwei Zhang , Xiaorui Liu , Suhang Wang

Knowledge graph (KG) embedding methods map entities and relations into continuous vector spaces, improving performance in tasks like link prediction and question answering. With rising privacy concerns, machine unlearning (MU) has emerged…

Artificial Intelligence · Computer Science 2024-12-03 Naixing Xu , Qian Li , Xu Wang , Bingchen Liu , Xin Li

Graph unlearning, which aims to eliminate the influence of specific nodes, edges, or attributes from a trained Graph Neural Network (GNN), is essential in applications where privacy, bias, or data obsolescence is a concern. However,…

Machine Learning · Computer Science 2024-12-20 Zhe-Rui Yang , Jindong Han , Chang-Dong Wang , Hao Liu

With the increasing demands of training graph neural networks (GNNs) on large-scale graphs, graph data condensation has emerged as a critical technique to relieve the storage and time costs during the training phase. It aims to condense the…

Machine Learning · Computer Science 2024-06-10 Zhanyu Liu , Chaolv Zeng , Guanjie Zheng

Graph unlearning, which involves deleting graph elements such as nodes, node labels, and relationships from a trained graph neural network (GNN) model, is crucial for real-world applications where data elements may become irrelevant,…

Machine Learning · Computer Science 2023-02-28 Jiali Cheng , George Dasoulas , Huan He , Chirag Agarwal , Marinka Zitnik

The first provably efficient algorithm for learning graph neural networks (GNNs) with one hidden layer for node information convolution is provided in this paper. Two types of GNNs are investigated, depending on whether labels are attached…

Machine Learning · Computer Science 2020-12-08 Qunwei Li , Shaofeng Zou , Wenliang Zhong