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Convolutional neural networks (CNNs) can be applied to graph similarity matching, in which case they are called graph CNNs. Graph CNNs are attracting increasing attention due to their effectiveness and efficiency. However, the existing…

机器学习 · 计算机科学 2017-12-12 Bo Wu , Yang Liu , Bo Lang , Lei Huang

Graph convolutional neural networks (GCNN) have numerous applications in different graph based learning tasks. Although the techniques obtain impressive results, they often fall short in accounting for the uncertainty associated with the…

机器学习 · 计算机科学 2019-11-13 Soumyasundar Pal , Florence Regol , Mark Coates

In recent years, graph neural networks (GNNs) have achieved state-of-the-art performance for node classification. However, most existing GNNs would suffer from the graph imbalance problem. In many real-world scenarios, node classes are…

机器学习 · 计算机科学 2022-06-14 Tianxiang Zhao , Xiang Zhang , Suhang Wang

Imbalanced node classification is a critical challenge in graph learning, where most existing methods typically utilize Graph Neural Networks (GNNs) to learn node representations. These methods can be broadly categorized into the data-level…

机器学习 · 计算机科学 2025-11-14 Chaofan Zhu , Xiaobing Rui , Zhixiao Wang

In recent years, deep learning based methods have shown success in essential medical image analysis tasks such as segmentation. Post-processing and refining the results of segmentation is a common practice to decrease the misclassifications…

图像与视频处理 · 电气工程与系统科学 2021-08-29 Ufuk Demir , Atahan Ozer , Yusuf H. Sahin , Gozde Unal

Contrastive Learning (CL) has recently emerged as a powerful technique in recommendation systems, particularly for its capability to harness self-supervised signals from perturbed views to mitigate the persistent challenge of data sparsity.…

信息检索 · 计算机科学 2025-04-08 Zheyu Chen , Jinfeng Xu , Yutong Wei , Ziyue Peng

Class imbalance occurs in many real-world applications, including image classification, where the number of images in each class differs significantly. With imbalanced data, the generative adversarial networks (GANs) leans to majority class…

计算机视觉与模式识别 · 计算机科学 2022-01-14 Yuchong Yao , Xiaohui Wangr , Yuanbang Ma , Han Fang , Jiaying Wei , Liyuan Chen , Ali Anaissi , Ali Braytee

Machine learning, particularly convolutional neural networks (CNNs), has shown promise in medical image analysis, especially for thoracic disease detection using chest X-ray images. In this study, we evaluate various CNN architectures,…

计算机视觉与模式识别 · 计算机科学 2025-02-18 Tejas Mirthipati

Automatic emotion recognition based on multichannel Electroencephalography (EEG) holds great potential in advancing human-computer interaction. However, several significant challenges persist in existing research on algorithmic emotion…

机器学习 · 计算机科学 2023-10-24 Hongxiang Gao , Xiangyao Wang , Zhenghua Chen , Min Wu , Zhipeng Cai , Lulu Zhao , Jianqing Li , Chengyu Liu

Link prediction is a fundamental problem in graph data. In its most realistic setting, the problem consists of predicting missing or future links between random pairs of nodes from the set of disconnected pairs. Graph Neural Networks (GNNs)…

机器学习 · 计算机科学 2024-12-03 João Mattos , Zexi Huang , Mert Kosan , Ambuj Singh , Arlei Silva

This paper presents a novel approach to credit risk prediction by employing Graph Convolutional Neural Networks (GCNNs) to assess the creditworthiness of borrowers. Leveraging the power of big data and artificial intelligence, the proposed…

机器学习 · 计算机科学 2024-10-08 Mengfang Sun , Wenying Sun , Ying Sun , Shaobo Liu , Mohan Jiang , Zhen Xu

Graph Convolutional Networks (GCNs) are a class of general models that can learn from graph structured data. Despite being general, GCNs are admittedly inferior to convolutional neural networks (CNNs) when applied to vision tasks, mainly…

计算机视觉与模式识别 · 计算机科学 2019-07-23 Boris Knyazev , Xiao Lin , Mohamed R. Amer , Graham W. Taylor

Imbalanced node classification is a critical challenge in graph learning, where most existing methods typically utilize Graph Neural Networks (GNNs) to learn node representations. These methods can be broadly categorized into the data-level…

机器学习 · 计算机科学 2026-01-28 Zhixiao Wang , Chaofan Zhu , Qihan Feng , Jian Zhang , Xiaobin Rui , Philip S Yu

Graph neural networks (GNN) has been demonstrated to be effective in classifying graph structures. To further improve the graph representation learning ability, hierarchical GNN has been explored. It leverages the differentiable pooling to…

社会与信息网络 · 计算机科学 2019-12-19 Kaixiong Zhou , Qingquan Song , Xiao Huang , Daochen Zha , Na Zou , Xia Hu

Nuclei classification is a critical step in computer-aided diagnosis with histopathology images. In the past, various methods have employed graph neural networks (GNN) to analyze cell graphs that model inter-cell relationships by…

计算机视觉与模式识别 · 计算机科学 2024-02-21 Wei Lou , Guanbin Li , Xiang Wan , Haofeng Li

Machine learning algorithms are used in diverse domains, many of which face significant challenges due to data imbalance. Studies have explored various approaches to address the issue, like data preprocessing, cost-sensitive learning, and…

人工智能 · 计算机科学 2025-02-25 Pankaj Yadav , Gulshan Sihag , Vivek Vijay

Network topology excels at structural predictions but fails to capture functional semantics encoded in biomedical literature. We present RAG-GNN, an end-to-end trainable retrieval-augmented graph neural network framework that integrates GNN…

分子网络 · 定量生物学 2026-05-14 Hasi Hays , William J. Richardson

Graph Neural Networks (GNNs) have emerged as a powerful tool for representation learning on graphs, but they often suffer from overfitting and label noise issues, especially when the data is scarce or imbalanced. Different from the paradigm…

机器学习 · 计算机科学 2023-12-15 Yifan Li , Zhen Tan , Kai Shu , Zongsheng Cao , Yu Kong , Huan Liu

Graph convolutional network (GCN) provides a powerful means for graph-based semi-supervised tasks. However, as a localized first-order approximation of spectral graph convolution, the classic GCN can not take full advantage of unlabeled…

机器学习 · 计算机科学 2018-09-27 Yawei Luo , Tao Guan , Junqing Yu , Ping Liu , Yi Yang

Graph Convolutional Networks (GCNs) have been extensively used to classify vertices in graphs and have been shown to outperform other vertex classification methods. GCNs have been extended to graph classification tasks (GCT). In GCT, graphs…

机器学习 · 计算机科学 2021-04-15 Omer Nagar , Shoval Frydman , Ori Hochman , Yoram Louzoun