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There is increasing evidence suggesting neural networks' sensitivity to distribution shifts, so that research on out-of-distribution (OOD) generalization comes into the spotlight. Nonetheless, current endeavors mostly focus on Euclidean…

机器学习 · 计算机科学 2024-08-19 Qitian Wu , Hengrui Zhang , Junchi Yan , David Wipf

The rich information underlying graphs has inspired further investigation of unsupervised graph representation. Existing studies mainly depend on node features and topological properties within static graphs to create self-supervised…

机器学习 · 计算机科学 2026-05-27 Yiming Xu , Zhen Peng , Bin Shi , Xu Hua , Bo Dong

In this paper, we propose an end-to-end graph learning framework, namely Deep Iterative and Adaptive Learning for Graph Neural Networks (DIAL-GNN), for jointly learning the graph structure and graph embeddings simultaneously. We first cast…

机器学习 · 计算机科学 2019-12-18 Yu Chen , Lingfei Wu , Mohammed J. Zaki

Graph Domain Adaptation (GDA) transfers knowledge from labeled source graphs to unlabeled target graphs but is challenged by complex, multi-faceted distributional shifts. Existing methods attempt to reduce distributional shifts by aligning…

机器学习 · 计算机科学 2026-03-19 Wei Chen , Xingyu Guo , Shuang Li , Zhao Zhang , Yan Zhong , Fuzhen Zhuang , Deqing wang

Learning generative models for graph-structured data is challenging because graphs are discrete, combinatorial, and the underlying data distribution is invariant to the ordering of nodes. However, most of the existing generative models for…

机器学习 · 计算机科学 2020-03-03 Chenhao Niu , Yang Song , Jiaming Song , Shengjia Zhao , Aditya Grover , Stefano Ermon

Graph-structured data and their related algorithms have attracted significant attention in many fields, such as influenza prediction in public health. However, the variable influenza seasonality, occasional pandemics, and domain knowledge…

人工智能 · 计算机科学 2021-02-17 Jie Zhang , Pengfei Zhou , Hongyan Wu

Graph invariant learning (GIL) seeks invariant relations between graphs and labels under distribution shifts. Recent works try to extract an invariant subgraph to improve out-of-distribution (OOD) generalization, yet existing approaches…

机器学习 · 计算机科学 2026-01-22 Junchi Yan , Fangyu Ding , Jiawei Sun , Zhaoping Hu , Yunyi Zhou , Lei Zhu

Spatiotemporal graph neural networks (STGNNs) have shown promising results in many domains, from forecasting to epidemiology. However, understanding the dynamics learned by these models and explaining their behaviour is significantly more…

机器学习 · 计算机科学 2026-04-08 Michele Guerra , Simone Scardapane , Filippo Maria Bianchi

Graphs are essential representations of many real-world data such as social networks. Recent years have witnessed the increasing efforts made to extend the neural network models to graph-structured data. These methods, which are usually…

机器学习 · 计算机科学 2018-11-07 Yao Ma , Ziyi Guo , Zhaochun Ren , Eric Zhao , Jiliang Tang , Dawei Yin

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

Graph Neural Networks (GNNs) have advanced relational data analysis but lack invariance learning techniques common in image classification. In node classification with GNNs, it is actually the ego-graph of the center node that is…

机器学习 · 计算机科学 2024-11-27 Qin Jiang , Chengjia Wang , Michael Lones , Yingfang Yuan , Wei Pang

Graph neural networks (GNNs) have achieved remarkable success in various domains, yet they often struggle with domain adaptation due to significant structural distribution shifts and insufficient exploration of transferable patterns. One of…

机器学习 · 计算机科学 2025-10-16 Haoyu Zhang , Yuxuan Cheng , Wenqi Fan , Yulong Chen , Yifan Zhang

Recent research on deep graph learning has shifted from static to dynamic graphs, motivated by the evolving behaviors observed in complex real-world systems. However, the temporal extension in dynamic graphs poses significant data…

机器学习 · 计算机科学 2025-06-17 Dong Chen , Shuai Zheng , Yeyu Yan , Muhao Xu , Zhenfeng Zhu , Yao Zhao , Kunlun He

Multivariate time-series forecasting plays a crucial role in many real-world applications. It is a challenging problem as one needs to consider both intra-series temporal correlations and inter-series correlations simultaneously. Recently,…

机器学习 · 计算机科学 2021-03-16 Defu Cao , Yujing Wang , Juanyong Duan , Ce Zhang , Xia Zhu , Conguri Huang , Yunhai Tong , Bixiong Xu , Jing Bai , Jie Tong , Qi Zhang

Recent years have seen a surge in research on dynamic graph representation learning, which aims to model temporal graphs that are dynamic and evolving constantly over time. However, current work typically models graph dynamics with…

神经与进化计算 · 计算机科学 2023-05-19 Jintang Li , Zhouxin Yu , Zulun Zhu , Liang Chen , Qi Yu , Zibin Zheng , Sheng Tian , Ruofan Wu , Changhua Meng

The analysis of the brain surface modeled as a graph mesh is a challenging task. Conventional deep learning approaches often rely on data lying in the Euclidean space. As an extension to irregular graphs, convolution operations are defined…

图像与视频处理 · 电气工程与系统科学 2019-11-25 Ran He , Karthik Gopinath , Christian Desrosiers , Herve Lombaert

Spectral Graph Neural Networks (GNNs) have achieved tremendous success in graph learning. As an essential part of spectral GNNs, spectral graph convolution extracts crucial frequency information in graph data, leading to superior…

机器学习 · 计算机科学 2024-04-09 Guoming Li , Jian Yang , Shangsong Liang , Dongsheng Luo

Existing graph neural networks may suffer from the "suspended animation problem" when the model architecture goes deep. Meanwhile, for some graph learning scenarios, e.g., nodes with text/image attributes or graphs with long-distance node…

机器学习 · 计算机科学 2020-01-23 Jiawei Zhang

Diffusion has shown great success in improving accuracy of unsupervised image retrieval systems by utilizing high-order structures of image manifold. However, existing diffusion methods suffer from three major limitations: 1) they usually…

计算机视觉与模式识别 · 计算机科学 2020-06-15 Zhiyong Dou , Haotian Cui , Lin Zhang , Bo Wang

We propose the Interferometric Graph Transform (IGT), which is a new class of deep unsupervised graph convolutional neural network for building graph representations. Our first contribution is to propose a generic, complex-valued spectral…

机器学习 · 计算机科学 2020-06-11 Edouard Oyallon