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Temporal link prediction in dynamic graphs is a critical task with applications in diverse domains such as social networks, recommendation systems, and e-commerce platforms. While existing Temporal Graph Neural Networks (T-GNNs) have…

人工智能 · 计算机科学 2025-07-21 Haoyang Li , Yuming Xu , Yiming Li , Hanmo Liu , Darian Li , Chen Jason Zhang , Lei Chen , Qing Li

This paper explores the utilization of Temporal Graph Networks (TGN) for financial anomaly detection, a pressing need in the era of fintech and digitized financial transactions. We present a comprehensive framework that leverages TGN,…

统计金融 · 定量金融 2024-04-02 Yejin Kim , Youngbin Lee , Minyoung Choe , Sungju Oh , Yongjae Lee

In real-world applications, node features in graphs often contain noise from various sources, leading to significant performance degradation in GNNs. Although several methods have been developed to enhance robustness, they rely on the…

机器学习 · 计算机科学 2025-10-24 Yeonjun In , Kanghoon Yoon , Sukwon Yun , Kibum Kim , Sungchul Kim , Chanyoung Park

Hypergraph neural networks (HGNN) have recently become attractive and received significant attention due to their excellent performance in various domains. However, most existing HGNNs rely on first-order approximations of hypergraph…

人工智能 · 计算机科学 2024-01-11 Maolin Wang , Yaoming Zhen , Yu Pan , Yao Zhao , Chenyi Zhuang , Zenglin Xu , Ruocheng Guo , Xiangyu Zhao

Graph Neural Networks (GNNs) have shown to be powerful tools for graph analytics. The key idea is to recursively propagate and aggregate information along edges of the given graph. Despite their success, however, the existing GNNs are…

机器学习 · 计算机科学 2020-11-16 Dongsheng Luo , Wei Cheng , Wenchao Yu , Bo Zong , Jingchao Ni , Haifeng Chen , Xiang Zhang

How to effectively and efficiently deal with spatio-temporal event streams, where the events are generally sparse and non-uniform and have the microsecond temporal resolution, is of great value and has various real-life applications.…

计算机视觉与模式识别 · 计算机科学 2021-07-27 Man Yao , Huanhuan Gao , Guangshe Zhao , Dingheng Wang , Yihan Lin , Zhaoxu Yang , Guoqi Li

Important advances have been made using convolutional neural network (CNN) approaches to solve complicated problems in areas that rely on grid structured data such as image processing and object classification. Recently, research on graph…

机器学习 · 统计学 2018-08-24 Matthew Baron

Continual learning on graphs tackles the problem of training a graph neural network (GNN) where graph data arrive in a streaming fashion and the model tends to forget knowledge from previous tasks when updating with new data. Traditional…

机器学习 · 计算机科学 2024-01-09 Xiaoxue Han , Zhuo Feng , Yue Ning

Convolutional neural networks (CNNs), such as the time-delay neural network (TDNN), have shown their remarkable capability in learning speaker embedding. However, they meanwhile bring a huge computational cost in storage size, processing,…

音频与语音处理 · 电气工程与系统科学 2022-06-22 Rui Wang , Zhihua Wei , Haoran Duan , Shouling Ji , Yang Long , Zhen Hong

Real-world graphs are dynamic, constantly evolving with new interactions, such as financial transactions in financial networks. Temporal Graph Neural Networks (TGNNs) have been developed to effectively capture the evolving patterns in…

机器学习 · 计算机科学 2024-02-26 Dongjin Lee , Juho Lee , Kijung Shin

Graph neural networks (GNNs) manifest pathologies including over-smoothing and limited discriminating power as a result of suboptimally expressive aggregating mechanisms. We herein present a unifying framework for stochastic aggregation…

机器学习 · 统计学 2021-03-01 Yuanqing Wang , Theofanis Karaletsos

Deep Neural Networks (DNNs) have been shown to be susceptible to memorization or overfitting in the presence of noisily-labelled data. For the problem of robust learning under such noisy data, several algorithms have been proposed. A…

机器学习 · 计算机科学 2022-12-06 Deep Patel , P. S. Sastry

Tensor networks (TNs) enable compact representations of large tensors through shared parameters. Their use in probabilistic modeling is particularly appealing, as probabilistic tensor networks (PTNs) allow for tractable computation of…

机器学习 · 计算机科学 2025-10-02 Marawan Gamal Abdel Hameed , Guillaume Rabusseau

Recent years have witnessed the emerging success of graph neural networks (GNNs) for modeling structured data. However, most GNNs are designed for homogeneous graphs, in which all nodes and edges belong to the same types, making them…

机器学习 · 计算机科学 2020-03-04 Ziniu Hu , Yuxiao Dong , Kuansan Wang , Yizhou Sun

Graphs and networks are a key research tool for a variety of science fields, most notably chemistry, biology, engineering and social sciences. Modeling and generation of graphs with efficient sampling is a key challenge for graphs. In…

机器学习 · 计算机科学 2019-09-26 Ruud van Deursen , Guillaume Godin

Graph Neural Networks (GNNs) have superior capability in learning graph data. Full-graph GNN training generally has high accuracy, however, it suffers from large peak memory usage and encounters the Out-of-Memory problem when handling large…

机器学习 · 计算机科学 2024-06-10 Xizhi Gu , Hongzheng Li , Shihong Gao , Xinyan Zhang , Lei Chen , Yingxia Shao

Temporal Graph Learning (TGL) has become a prevalent technique across diverse real-world applications, especially in domains where data can be represented as a graph and evolves over time. Although TGL has recently seen notable progress in…

机器学习 · 计算机科学 2024-02-27 Weilin Cong , Jian Kang , Hanghang Tong , Mehrdad Mahdavi

In this paper, we propose a novel tensor graph convolutional neural network (TGCNN) to conduct convolution on factorizable graphs, for which here two types of problems are focused, one is sequential dynamic graphs and the other is…

计算机视觉与模式识别 · 计算机科学 2018-03-28 Tong Zhang , Wenming Zheng , Zhen Cui , Yang Li

We propose a novel solution to addressing a long-standing dilemma in the representation learning of graph neural networks (GNNs): how to effectively capture and represent useful information embedded in long-distance nodes to improve the…

机器学习 · 计算机科学 2022-02-17 Ailing Zeng , Minhao Liu , Zhiwei Liu , Ruiyuan Gao , Jing Qin , Qiang Xu

Multivariate time series classification (MTSC) is an important data mining task, which can be effectively solved by popular deep learning technology. Unfortunately, the existing deep learning-based methods neglect the hidden dependencies in…

机器学习 · 计算机科学 2024-08-19 Huaiyuan Liu , Xianzhang Liu , Donghua Yang , Zhiyu Liang , Hongzhi Wang , Yong Cui , Jun Gu