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In recent years, tasks of machine learning ranging from image processing & audio/video analysis to natural language understanding have been transformed by deep learning. The data content in all these scenarios are expressed via Euclidean…

机器学习 · 计算机科学 2023-11-07 Adil Mudasir Malla , Asif Ali Banka

Medical time series has been playing a vital role in real-world healthcare systems as valuable information in monitoring health conditions of patients. Accurate classification for medical time series, e.g., Electrocardiography (ECG)…

机器学习 · 计算机科学 2025-02-10 Wei Fan , Jingru Fei , Dingyu Guo , Kun Yi , Xiaozhuang Song , Haolong Xiang , Hangting Ye , Min Li

We introduce a novel Dynamic Graph Neural Network (DGNN) architecture for solving conditional $m$-steps ahead forecasting problems in temporal financial networks. The proposed DGNN is validated on simulated data from a temporal financial…

风险管理 · 定量金融 2024-10-31 Matteo Citterio , Marco D'Errico , Gabriele Visentin

Forecasting future stock trends remains challenging for academia and industry due to stochastic inter-stock dynamics and hierarchical intra-stock dynamics influencing stock prices. In recent years, graph neural networks have achieved…

机器学习 · 计算机科学 2024-03-05 Zinuo You , Zijian Shi , Hongbo Bo , John Cartlidge , Li Zhang , Yan Ge

We present diffusion-convolutional neural networks (DCNNs), a new model for graph-structured data. Through the introduction of a diffusion-convolution operation, we show how diffusion-based representations can be learned from…

机器学习 · 计算机科学 2016-07-11 James Atwood , Don Towsley

Graph representation learning is a fundamental task in various applications that strives to learn low-dimensional embeddings for nodes that can preserve graph topology information. However, many existing methods focus on static graphs while…

机器学习 · 计算机科学 2020-11-09 Jingxin Liu , Chang Xu , Chang Yin , Weiqiang Wu , You Song

Many tasks in graph machine learning, such as link prediction and node classification, are typically solved by using representation learning, in which each node or edge in the network is encoded via an embedding. Though there exists a lot…

In the realm of applications where data dynamically evolves across spatial and temporal dimensions, Graph Neural Networks (GNNs) are often complemented by sequence modeling architectures, such as RNNs and transformers, to effectively model…

机器学习 · 计算机科学 2024-09-02 Osama Ahmad , Omer Abdul Jalil , Usman Nazir , Murtaza Taj

Real-time and precise traffic flow prediction is vital for the efficiency of intelligent transportation systems. Traditional methods often employ graph neural networks (GNNs) with predefined graphs to describe spatial correlations among…

机器学习 · 计算机科学 2024-06-18 Ben-Ao Dai , Bao-Lin Ye , Lingxi Li

Recent advances in neural algorithmic reasoning with graph neural networks (GNNs) are propped up by the notion of algorithmic alignment. Broadly, a neural network will be better at learning to execute a reasoning task (in terms of sample…

机器学习 · 计算机科学 2022-10-12 Andrew Dudzik , Petar Veličković

Accurately forecasting dynamic processes on graphs, such as traffic flow or disease spread, remains a challenge. While Graph Neural Networks (GNNs) excel at modeling and forecasting spatio-temporal data, they often lack the ability to…

机器学习 · 计算机科学 2024-08-30 Zakaria Elabid , Lena Sasal , Daniel Busby , Abdenour Hadid

Graphs are a highly expressive abstraction for modeling entities and their relations, such as molecular structures, social networks, and traffic networks. Deep Graph Networks (DGNs) have emerged as a family of deep learning models that can…

机器学习 · 计算机科学 2024-10-16 Alessio Gravina

Graph convolutional networks (GCNs) can effectively capture the features of related nodes and improve the performance of the model. More attention is paid to employing GCN in Skeleton-Based action recognition. But existing methods based on…

计算机视觉与模式识别 · 计算机科学 2020-12-08 Tingwei Li , Ruiwen Zhang , Qing Li

Most Graph Neural Networks (GNNs) predict the labels of unseen graphs by learning the correlation between the input graphs and labels. However, by presenting a graph classification investigation on the training graphs with severe bias,…

机器学习 · 计算机科学 2022-09-29 Shaohua Fan , Xiao Wang , Yanhu Mo , Chuan Shi , Jian Tang

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

Generative learning has advanced network neuroscience, enabling tasks like graph super-resolution, temporal graph prediction, and multimodal brain graph fusion. However, current methods, mainly based on graph neural networks (GNNs), focus…

机器学习 · 计算机科学 2025-09-16 Mayssa Soussia , Yijun Lin , Mohamed Ali Mahjoub , Islem Rekik

Graphs are ubiquitous in nature and can therefore serve as models for many practical but also theoretical problems. For this purpose, they can be defined as many different types which suitably reflect the individual contexts of the…

机器学习 · 计算机科学 2023-04-27 Josephine M. Thomas , Alice Moallemy-Oureh , Silvia Beddar-Wiesing , Clara Holzhüter

Graph neural networks (GNNs) have achieved remarkable success in node classification. Building on this progress, heterogeneous graph neural networks (HGNNs) integrate relation types and node and edge semantics to leverage heterogeneous…

机器学习 · 计算机科学 2025-10-08 Xiao Yang , Xuejiao Zhao , Zhiqi Shen

Spatial-temporal graph modeling is an important task to analyze the spatial relations and temporal trends of components in a system. Existing approaches mostly capture the spatial dependency on a fixed graph structure, assuming that the…

机器学习 · 计算机科学 2019-06-04 Zonghan Wu , Shirui Pan , Guodong Long , Jing Jiang , Chengqi Zhang

Graph Neural Networks (GNNs) have shown remarkable effectiveness in capturing abundant information in graph-structured data. However, the black-box nature of GNNs hinders users from understanding and trusting the models, thus leading to…

机器学习 · 计算机科学 2022-07-25 Jiaxuan Xie , Yezi Liu , Yanning Shen