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相关论文: Model-Agnostic Augmentation for Accurate Graph Cla…

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Graph matching has important applications in pattern recognition and beyond. Current approaches predominantly adopt supervised learning, demanding extensive labeled data which can be limited or costly. Meanwhile, self-supervised learning…

机器学习 · 计算机科学 2024-06-26 Jianyuan Bo , Yuan Fang

We present a new method to regularize graph neural networks (GNNs) for better generalization in graph classification. Observing that the omission of sub-structures does not necessarily change the class label of the whole graph, we develop…

社会与信息网络 · 计算机科学 2020-09-23 Yiwei Wang , Wei Wang , Yuxuan Liang , Yujun Cai , Bryan Hooi

Graph augmentation is a fundamental and well-studied problem that arises in network optimization. We consider a new variant of this model motivated by reconfigurable communication networks. In this variant, we consider a given physical…

数据结构与算法 · 计算机科学 2024-11-19 Aleksander Figiel , Darya Melnyk , André Nichterlein , Arash Pourdamghani , Stefan Schmid

Tables are widely used in documents because of their compact and structured representation of information. In particular, in scientific papers, tables can sum up novel discoveries and summarize experimental results, making the research…

计算机视觉与模式识别 · 计算机科学 2023-02-21 Davide del Bimbo , Andrea Gemelli , Simone Marinai

Most Graph Neural Networks (GNNs) cannot distinguish some graphs or indeed some pairs of nodes within a graph. This makes it impossible to solve certain classification tasks. However, adding additional node features to these models can…

机器学习 · 计算机科学 2022-09-20 Beni Egressy , Roger Wattenhofer

Recently, contrastiveness-based augmentation surges a new climax in the computer vision domain, where some operations, including rotation, crop, and flip, combined with dedicated algorithms, dramatically increase the model generalization…

计算机视觉与模式识别 · 计算机科学 2022-05-23 Han Yue , Chunhui Zhang , Chuxu Zhang , Hongfu Liu

Cross-graph node classification, utilizing the abundant labeled nodes from one graph to help classify unlabeled nodes in another graph, can be viewed as a domain generalization problem of graph neural networks (GNNs) due to the structure…

机器学习 · 计算机科学 2025-02-26 Guanzi Chen , Jiying Zhang , Yang Li

This survey paper presents a brief overview of recent research on graph data augmentation and few-shot learning. It covers various techniques for graph data augmentation, including node and edge perturbation, graph coarsening, and graph…

机器学习 · 计算机科学 2023-11-28 Kush Kothari , Bhavya Mehta , Reshmika Nambiar , Seema Shrawne

Graph Neural Networks (GNNs) have shown great performance in various tasks, with the core idea of learning from data labels and aggregating messages within the neighborhood of nodes. However, the common challenges in graphs are twofold:…

机器学习 · 计算机科学 2024-11-04 Shenghe Zheng , Hongzhi Wang , Xianglong Liu

Most real-world networks are noisy and incomplete samples from an unknown target distribution. Refining them by correcting corruptions or inferring unobserved regions typically improves downstream performance. Inspired by the impressive…

Graph anomaly detection (GAD) is a vital task since even a few anomalies can pose huge threats to benign users. Recent semi-supervised GAD methods, which can effectively leverage the available labels as prior knowledge, have achieved…

机器学习 · 计算机科学 2023-06-21 Shuang Zhou , Xiao Huang , Ninghao Liu , Huachi Zhou , Fu-Lai Chung , Long-Kai Huang

Graph anomaly detection (GAD) is a vital task since even a few anomalies can pose huge threats to benign users. Recent semi-supervised GAD methods, which can effectively leverage the available labels as prior knowledge, have achieved…

机器学习 · 计算机科学 2023-07-25 Shuang Zhou , Xiao Huang , Ninghao Liu , Fu-Lai Chung , Long-Kai Huang

Graph augmentation methods play a crucial role in improving the performance and enhancing generalisation capabilities in Graph Neural Networks (GNNs). Existing graph augmentation methods mainly perturb the graph structures, and are usually…

机器学习 · 计算机科学 2024-08-14 Xiangyu Zhao , Zehui Li , Mingzhu Shen , Guy-Bart Stan , Pietro Liò , Yiren Zhao

We present GraphMix, a regularization method for Graph Neural Network based semi-supervised object classification, whereby we propose to train a fully-connected network jointly with the graph neural network via parameter sharing and…

机器学习 · 计算机科学 2020-10-12 Vikas Verma , Meng Qu , Kenji Kawaguchi , Alex Lamb , Yoshua Bengio , Juho Kannala , Jian Tang

Graph Neural Networks (GNNs) have emerged as powerful tools for learning over graph-structured data, yet recent studies have shown that their performance gains are beginning to plateau. In many cases, well-established models such as GCN and…

机器学习 · 计算机科学 2026-02-13 Mohit Meena , Yash Punjabi , Abhishek A , Vishal Sharma , Mahesh Chandran

Recently, data augmentation in the semi-supervised regime, where unlabeled data vastly outnumbers labeled data, has received a considerable attention. In this paper, we describe an efficient technique for this task, exploiting a recent…

机器学习 · 统计学 2019-06-21 Indro Spinelli , Simone Scardapane , Michele Scarpiniti , Aurelio Uncini

Data augmentation is a widely used training trick in deep learning to improve the network generalization ability. Despite many encouraging results, several recent studies did point out limitations of the conventional data augmentation…

机器学习 · 计算机科学 2020-10-06 Yi Xu , Asaf Noy , Ming Lin , Qi Qian , Hao Li , Rong Jin

Recent years have witnessed great success in handling node classification tasks with Graph Neural Networks (GNNs). However, most existing GNNs are based on the assumption that node samples for different classes are balanced, while for many…

机器学习 · 计算机科学 2021-06-22 Lirong Wu , Haitao Lin , Zhangyang Gao , Cheng Tan , Stan. Z. Li

The Graph Neural Network (GNN) has been widely used for graph data representation. However, the existing researches only consider the ideal balanced dataset, and the imbalanced dataset is rarely considered. Traditional methods such as…

机器学习 · 计算机科学 2022-05-10 S. Shi , Kai Qiao , Shuai Yang , L. Wang , J. Chen , Bin Yan

A critical aspect of Graph Neural Networks (GNNs) is to enhance the node representations by aggregating node neighborhood information. However, when detecting anomalies, the representations of abnormal nodes are prone to be averaged by…

机器学习 · 计算机科学 2024-07-03 Chunjing Xiao , Shikang Pang , Xovee Xu , Xuan Li , Goce Trajcevski , Fan Zhou