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Graph convolutional networks (GCNs) are a powerful architecture for representation learning on documents that naturally occur as graphs, e.g., citation or social networks. However, sensitive personal information, such as documents with…

社会与信息网络 · 计算机科学 2022-05-03 Timour Igamberdiev , Ivan Habernal

Graph Neural Networks (GNNs) are de facto node classification models in graph structured data. However, during testing-time, these algorithms assume no data shift, i.e., $\Pr_\text{train}(X,Y) = \Pr_\text{test}(X,Y)$. Domain adaption…

机器学习 · 计算机科学 2022-03-31 Qi Zhu , Chao Zhang , Chanyoung Park , Carl Yang , Jiawei Han

Graph convolutional networks (GCNs) have shown promising results in processing graph data by extracting structure-aware features. This gave rise to extensive work in geometric deep learning, focusing on designing network architectures that…

机器学习 · 计算机科学 2022-01-20 Yimeng Min , Frederik Wenkel , Guy Wolf

Graphs are ubiquitous in modelling relational structures. Recent endeavours in machine learning for graph-structured data have led to many architectures and learning algorithms. However, the graph used by these algorithms is often…

Graphs are a fundamental abstraction for modeling relational data. However, graphs are discrete and combinatorial in nature, and learning representations suitable for machine learning tasks poses statistical and computational challenges. In…

机器学习 · 统计学 2019-05-16 Aditya Grover , Aaron Zweig , Stefano Ermon

Graph convolutional networks (GCNs) have achieved remarkable learning ability for dealing with various graph structural data recently. In general, deep GCNs do not work well since graph convolution in conventional GCNs is a special form of…

机器学习 · 计算机科学 2021-12-08 Zhilong Xiong , Jia Cai

Graph convolutional networks (GCN) have been recently utilized to extract the underlying structures of datasets with some labeled data and high-dimensional features. Existing GCNs mostly rely on a first-order Chebyshev approximation of…

信号处理 · 电气工程与系统科学 2020-12-01 Songyang Zhang , Han Zhang , Shuguang Cui , Zhi Ding

Graph Convolutional Network (GCN) has been widely applied in transportation demand prediction due to its excellent ability to capture non-Euclidean spatial dependence among station-level or regional transportation demands. However, in most…

机器学习 · 计算机科学 2020-12-16 Junchen Ye , Leilei Sun , Bowen Du , Yanjie Fu , Hui Xiong

In a traditional Gaussian graphical model, data homogeneity is routinely assumed with no extra variables affecting the conditional independence. In modern genomic datasets, there is an abundance of auxiliary information, which often gets…

统计方法学 · 统计学 2023-08-16 Yabo Niu , Yang Ni , Debdeep Pati , Bani K. Mallick

Graph Neural Networks (GNNs) have demonstrated state-of-the-art performance in various graph representation learning tasks. Recently, studies revealed their vulnerability to adversarial attacks. In this work, we theoretically define the…

Graph neural networks (GNNs) are a class of neural networks that allow to efficiently perform inference on data that is associated to a graph structure, such as, e.g., citation networks or knowledge graphs. While several variants of GNNs…

神经与进化计算 · 计算机科学 2018-02-27 Simone Scardapane , Steven Van Vaerenbergh , Danilo Comminiello , Aurelio Uncini

Graph Networks (GNs) enable the fusion of prior knowledge and relational reasoning with flexible function approximations. In this work, a general GN-based model is proposed which takes full advantage of the relational modeling capabilities…

计算工程、金融与科学 · 计算机科学 2021-07-01 Charilaos Mylonas , Imad Abdallah , Eleni Chatzi

Contrastive learning has become a key component of self-supervised learning approaches for graph-structured data. Despite their success, existing graph contrastive learning methods are incapable of uncertainty quantification for node…

Graph Convolutional Networks (GCNs) have become a standard approach for semi-supervised node classification, yet practitioners lack clear guidance on when GCNs provide meaningful improvements over simpler baselines. We present a diagnostic…

机器学习 · 计算机科学 2025-12-16 Nischal Subedi , Ember Kerstetter , Winnie Li , Silo Murphy

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

Forecasting the trajectories of neighbor vehicles is a crucial step for decision making and motion planning of autonomous vehicles. This paper proposes a graph-based spatial-temporal convolutional network (GSTCN) to predict future…

机器学习 · 计算机科学 2022-10-17 Zihao Sheng , Yunwen Xu , Shibei Xue , Dewei Li

Interest has been rising lately towards methods representing data in non-Euclidean spaces, e.g. hyperbolic or spherical, that provide specific inductive biases useful for certain real-world data properties, e.g. scale-free, hierarchical or…

机器学习 · 计算机科学 2020-05-20 Gregor Bachmann , Gary Bécigneul , Octavian-Eugen Ganea

Graph Neural Networks (GNN) have emerged as a popular and standard approach for learning from graph-structured data. The literature on GNN highlights the potential of this evolving research area and its widespread adoption in real-life…

机器学习 · 计算机科学 2024-03-25 Sukhdeep Singh , Anuj Sharma , Vinod Kumar Chauhan

Graph convolutional networks (GCNs) are vulnerable to perturbations of the graph structure that are either random, or, adversarially designed. The perturbed links modify the graph neighborhoods, which critically affects the performance of…

机器学习 · 计算机科学 2019-10-23 Vassilis N. Ioannidis , Georgios B. Giannakis

Many interesting problems in machine learning are being revisited with new deep learning tools. For graph-based semisupervised learning, a recent important development is graph convolutional networks (GCNs), which nicely integrate local…

机器学习 · 计算机科学 2018-01-24 Qimai Li , Zhichao Han , Xiao-Ming Wu