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Graph Neural Networks (GNNs) have seen significant success in tasks such as node classification, largely contingent upon the availability of sufficient labeled nodes. Yet, the excessive cost of labeling large-scale graphs led to a focus on…

Machine Learning · Computer Science 2024-02-06 Hongliang Chi , Cong Qi , Suhang Wang , Yao Ma

A fundamental problem in signal processing is to denoise a signal. While there are many well-performing methods for denoising signals defined on regular supports, such as images defined on two-dimensional grids of pixels, many important…

Signal Processing · Electrical Eng. & Systems 2023-02-20 Samuel Rey , Santiago Segarra , Reinhard Heckel , Antonio G. Marques

Constructing fine-grained image datasets typically requires domain-specific expert knowledge, which is not always available for crowd-sourcing platform annotators. Accordingly, learning directly from web images becomes an alternative method…

Computer Vision and Pattern Recognition · Computer Science 2020-08-07 Chuanyi Zhang , Yazhou Yao , Xiangbo Shu , Zechao Li , Zhenmin Tang , Qi Wu

Graph neural networks (GNNs) have been widely used in various graph machine learning scenarios. Existing literature primarily assumes well-annotated training graphs, while the reliability of labels is not guaranteed in real-world scenarios.…

Machine Learning · Computer Science 2026-01-27 Yusheng Zhao , Jiaye Xie , Qixin Zhang , Weizhi Zhang , Xiao Luo , Zhiping Xiao , Philip S. Yu , Ming Zhang

Graph unlearning has emerged as a pivotal method to delete information from a pre-trained graph neural network (GNN). One may delete nodes, a class of nodes, edges, or a class of edges. An unlearning method enables the GNN model to comply…

Machine Learning · Computer Science 2024-06-11 Yash Sinha , Murari Mandal , Mohan Kankanhalli

In [DOI:10.1109/ICMEW.2014.6890711], a graph-based denoising is performed by projecting the noisy image to a lower dimensional Krylov subspace of the graph Laplacian, constructed using nonnegative weights determined by distances between…

Computer Vision and Pattern Recognition · Computer Science 2016-06-13 Andrew Knyazev

Knowledge graphs serve as critical resources supporting intelligent systems, but they can be noisy due to imperfect automatic generation processes. Existing approaches to noise detection often rely on external facts, logical rule…

Machine Learning · Computer Science 2025-03-14 Jiaqi Sun , Yujia Zheng , Xinshuai Dong , Haoyue Dai , Kun Zhang

Video anomaly detection under weak labels is formulated as a typical multiple-instance learning problem in previous works. In this paper, we provide a new perspective, i.e., a supervised learning task under noisy labels. In such a…

Computer Vision and Pattern Recognition · Computer Science 2019-03-19 Jia-Xing Zhong , Nannan Li , Weijie Kong , Shan Liu , Thomas H. Li , Ge Li

Graph Neural Networks (GNNs) have demonstrated superior performance in learning node representations for various graph inference tasks. However, learning over graph data can raise privacy concerns when nodes represent people or…

Machine Learning · Computer Science 2021-07-08 Sina Sajadmanesh , Daniel Gatica-Perez

Signed Graph Neural Networks (SGNNs) are widely adopted to analyze complex patterns in signed graphs with both positive and negative links. Given the noisy nature of real-world connections, the robustness of SGNN has also emerged as a…

Machine Learning · Computer Science 2025-10-28 Junran Wu , Beng Chin Ooi , Ke Xu

In this work, we aim to classify nodes of unstructured peer-to-peer networks with communication uncertainty, such as users of decentralized social networks. Graph Neural Networks (GNNs) are known to improve the accuracy of simple…

Machine Learning · Computer Science 2022-03-17 Emmanouil Krasanakis , Symeon Papadopoulos , Ioannis Kompatsiaris

To leverage the full potential of quantum error-correcting stabilizer codes it is crucial to have an efficient and accurate decoder. Accurate, maximum likelihood, decoders are computationally very expensive whereas decoders based on more…

Learning with noisy labels is a practically challenging problem in weakly supervised learning. In the existing literature, open-set noises are always considered to be poisonous for generalization, similar to closed-set noises. In this…

Machine Learning · Computer Science 2021-11-22 Hongxin Wei , Lue Tao , Renchunzi Xie , Bo An

Learning from noisy labels (LNL) is crucial in deep learning, in which one of the approaches is to identify clean-label samples from poorly-annotated datasets. Such an identification is challenging because the conventional LNL problem,…

Machine Learning · Computer Science 2025-09-26 Cuong Nguyen , Thanh-Toan Do , Gustavo Carneiro

Recent research on fine-tuning vision-language models has demonstrated impressive performance in various downstream tasks. However, the challenge of obtaining accurately labeled data in real-world applications poses a significant obstacle…

Machine Learning · Computer Science 2024-10-01 Tong Wei , Hao-Tian Li , Chun-Shu Li , Jiang-Xin Shi , Yu-Feng Li , Min-Ling Zhang

Learning in the presence of label noise is a challenging yet important task: it is crucial to design models that are robust in the presence of mislabeled datasets. In this paper, we discover that a new class of loss functions called the…

Machine Learning · Computer Science 2020-02-18 Liu Ziyin , Blair Chen , Ru Wang , Paul Pu Liang , Ruslan Salakhutdinov , Louis-Philippe Morency , Masahito Ueda

The growing enforcement of the right to be forgotten regulations has propelled recent advances in certified (graph) unlearning strategies to comply with data removal requests from deployed machine learning (ML) models. Motivated by the…

Machine Learning · Computer Science 2025-05-22 O. Deniz Kose , Gonzalo Mateos , Yanning Shen

Deep learning has outperformed other machine learning algorithms in a variety of tasks, and as a result, it is widely used. However, like other machine learning algorithms, deep learning, and convolutional neural networks (CNNs) in…

Machine Learning · Computer Science 2022-07-19 Anabel Gómez-Ríos , Julián Luengo , Francisco Herrera

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…

Machine Learning · Computer Science 2023-11-03 Zhanke Zhou , Jiangchao Yao , Jiaxu Liu , Xiawei Guo , Quanming Yao , Li He , Liang Wang , Bo Zheng , Bo Han

While Graph Neural Networks (GNNs) excel on graph-structured data, their performance is fundamentally limited by the quality of the observed graph, which often contains noise, missing links, or structural properties misaligned with GNNs'…

Machine Learning · Computer Science 2026-01-14 Hao Deng , Bo Liu
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