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Recently, graph neural networks (GNNs) have become an important and active research direction in deep learning. It is worth noting that most of the existing GNN-based methods learn graph representations within the Euclidean vector space.…

机器学习 · 计算机科学 2021-10-08 Dai Quoc Nguyen , Tu Dinh Nguyen , Dinh Phung

Feature descriptors play a crucial role in a wide range of geometry analysis and processing applications, including shape correspondence, retrieval, and segmentation. In this paper, we introduce Geodesic Convolutional Neural Networks…

计算机视觉与模式识别 · 计算机科学 2018-06-11 Jonathan Masci , Davide Boscaini , Michael M. Bronstein , Pierre Vandergheynst

Recently, there has been a substantial amount of interest in GNN-based anomaly detection. Existing efforts have focused on simultaneously mastering the node representations and the classifier necessary for identifying abnormalities with…

密码学与安全 · 计算机科学 2024-09-25 Ahmad Hafez

Despite recent advances in representation learning in hypercomplex (HC) space, this subject is still vastly unexplored in the context of graphs. Motivated by the complex and quaternion algebras, which have been found in several contexts to…

机器学习 · 计算机科学 2022-02-22 Tuan Le , Marco Bertolini , Frank Noé , Djork-Arné Clevert

Spatial correlations between different ground objects are an important feature of mining land cover research. Graph Convolutional Networks (GCNs) can effectively capture such spatial feature representations and have demonstrated promising…

计算机视觉与模式识别 · 计算机科学 2024-04-02 Renxiang Guan , Zihao Li , Chujia Song , Guo Yu , Xianju Li , Ruyi Feng

Graph neural networks (GNN) have recently emerged as a vehicle for applying deep network architectures to graph and relational data. However, given the increasing size of industrial datasets, in many practical situations the message passing…

机器学习 · 计算机科学 2021-11-16 Qingru Zhang , David Wipf , Quan Gan , Le Song

Deep learning models have been widely used for anomaly detection in surveillance videos. Typical models are equipped with the capability to reconstruct normal videos and evaluate the reconstruction errors on anomalous videos to indicate the…

计算机视觉与模式识别 · 计算机科学 2022-11-08 Xianlin Zeng , Yalong Jiang , Wenrui Ding , Hongguang Li , Yafeng Hao , Zifeng Qiu

In this paper, we design Graph Neural Networks (GNNs) with attention mechanisms to tackle an important yet challenging nonlinear regression problem: massive network localization. We first review our previous network localization method…

机器学习 · 计算机科学 2025-04-08 Wenzhong Yan , Feng Yin , Juntao Wang , Geert Leus , Abdelhak M. Zoubir , Yang Tian

Geographically weighted regression (GWR) models handle geographical dependence through a spatially varying coefficient model and have been widely used in applied science, but its general Bayesian extension is unclear because it involves a…

统计方法学 · 统计学 2026-03-18 Yang Liu , Robert J. B. Goudie

The best performing learning algorithms devised for event cameras work by first converting events into dense representations that are then processed using standard CNNs. However, these steps discard both the sparsity and high temporal…

计算机视觉与模式识别 · 计算机科学 2022-11-02 Simon Schaefer , Daniel Gehrig , Davide Scaramuzza

Recently, graph-based models designed for downstream tasks have significantly advanced research on graph neural networks (GNNs). GNN baselines based on neural message-passing mechanisms such as GCN and GAT perform worse as the network…

机器学习 · 计算机科学 2023-01-26 Jiayuan Chen , Xiang Zhang , Yinfei Xu , Tianli Zhao , Renjie Xie , Wei Xu

Graphs are widely used to model the complex relationships among entities. As a powerful tool for graph analytics, graph neural networks (GNNs) have recently gained wide attention due to its end-to-end processing capabilities. With the…

密码学与安全 · 计算机科学 2023-02-01 Songlei Wang , Yifeng Zheng , Xiaohua Jia

Convolutional neural networks have been widely applied to hyperspectral image classification. However, traditional convolutions can not effectively extract features for objects with irregular distributions. Recent methods attempt to address…

计算机视觉与模式识别 · 计算机科学 2023-04-07 Di Wang , Bo Du , Liangpei Zhang

Heterogeneous Graph Neural Networks (HGNNs) are powerful tools for deep learning on heterogeneous graphs. Typical HGNNs require repetitive message passing during training, limiting efficiency for large-scale real-world graphs. Recent…

机器学习 · 计算机科学 2024-09-04 Jun Hu , Bryan Hooi , Bingsheng He

This work develops a distributed graph neural network (GNN) methodology for mesh-based modeling applications using a consistent neural message passing layer. As the name implies, the focus is on enabling scalable operations that satisfy…

分布式、并行与集群计算 · 计算机科学 2024-10-03 Shivam Barwey , Riccardo Balin , Bethany Lusch , Saumil Patel , Ramesh Balakrishnan , Pinaki Pal , Romit Maulik , Venkatram Vishwanath

Neural Architecture Search (NAS) methods have shown to output networks that largely outperform human-designed networks. However, conventional NAS methods have mostly tackled the single dataset scenario, incuring in a large computational…

计算机视觉与模式识别 · 计算机科学 2024-05-14 Sofia Casarin , Oswald Lanz , Sergio Escalera

In the realm of skin lesion image classification, the intricate spatial and semantic features pose significant challenges for conventional Convolutional Neural Network (CNN)-based methodologies. These challenges are compounded by the…

计算机视觉与模式识别 · 计算机科学 2024-03-20 K. P. Santoso , R. V. H. Ginardi , R. A. Sastrowardoyo , F. A. Madany

Neural message passing algorithms for semi-supervised classification on graphs have recently achieved great success. However, for classifying a node these methods only consider nodes that are a few propagation steps away and the size of…

机器学习 · 计算机科学 2022-04-06 Johannes Gasteiger , Aleksandar Bojchevski , Stephan Günnemann

Graph neural networks (GNNs) have been proposed for medical image segmentation, by predicting anatomical structures represented by graphs of vertices and edges. One such type of graph is predefined with fixed size and connectivity to…

图像与视频处理 · 电气工程与系统科学 2023-03-20 Qian Li , Yunguan Fu , Qianye Yang , Zhijiang Du , Hongjian Yu , Yipeng Hu

Machine learning methods such as convolutional neural networks (CNNs) are becoming an integral part of scientific research in many disciplines, spatial vector data often fail to be analyzed using these powerful learning methods because of…

机器学习 · 统计学 2018-09-24 Xiongfeng Yan , Tinghua Ai