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Graph Neural Networks (GNNs) typically operate by message-passing, where the state of a node is updated based on the information received from its neighbours. Most message-passing models act as graph convolutions, where features are mixed…

Despite much research, Graph Neural Networks (GNNs) still do not display the favorable scaling properties of other deep neural networks such as Convolutional Neural Networks and Transformers. Previous work has identified issues such as…

机器学习 · 计算机科学 2023-12-19 Ameen Ali , Hakan Cevikalp , Lior Wolf

Graph Neural Networks (GNNs) have recently received significant research attention due to their superior performance on a variety of graph-related learning tasks. Most of the current works focus on either static or dynamic graph settings,…

机器学习 · 计算机科学 2021-02-09 Fan Zhou , Chengtai Cao

Echo state networks are powerful recurrent neural networks. However, they are often unstable and shaky, making the process of finding an good ESN for a specific dataset quite hard. Obtaining a superb accuracy by using the Echo State Network…

机器学习 · 统计学 2018-02-22 Qiuyi Wu , Ernest Fokoue , Dhireesha Kudithipudi

Curvature notions on graphs provide a theoretical description of graph topology, highlighting bottlenecks and denser connected regions. Artifacts of the message passing paradigm in Graph Neural Networks, such as oversmoothing and…

机器学习 · 计算机科学 2026-02-25 Floriano Tori , Lorenzo Bini , Marco Sorbi , Stéphane Marchand-Maillet , Vincent Ginis

Among the various architectures of Recurrent Neural Networks, Echo State Networks (ESNs) emerged due to their simplified and inexpensive training procedure. These networks are known to be sensitive to the setting of hyper-parameters, which…

神经与进化计算 · 计算机科学 2019-09-23 Pietro Verzelli , Cesare Alippi , Lorenzo Livi

Knowledge graphs have emerged to be promising datastore candidates for context augmentation during Retrieval Augmented Generation (RAG). As a result, techniques in graph representation learning have been simultaneously explored alongside…

信息检索 · 计算机科学 2025-03-20 Md Shahir Zaoad , Niamat Zawad , Priyanka Ranade , Richard Krogman , Latifur Khan , James Holt

Effectively capturing long-range interactions remains a fundamental yet unresolved challenge in graph neural network (GNN) research, critical for applications across diverse fields of science. To systematically address this, we introduce…

机器学习 · 计算机科学 2026-02-24 Luca Miglior , Matteo Tolloso , Alessio Gravina , Davide Bacciu

Graph Neural Networks (GNNs) have achieved a lot of success with graph-structured data. However, it is observed that the performance of GNNs does not improve (or even worsen) as the number of layers increases. This effect has known as…

机器学习 · 计算机科学 2023-01-10 Yeskendir Koishekenov

Graph Neural Networks (GNNs) are powerful deep learning methods for Non-Euclidean data. Popular GNNs are message-passing algorithms (MPNNs) that aggregate and combine signals in a local graph neighborhood. However, shallow MPNNs tend to…

Semi-supervised node classification in graphs is a fundamental problem in graph mining, and the recently proposed graph neural networks (GNNs) have achieved unparalleled results on this task. Due to their massive success, GNNs have…

机器学习 · 计算机科学 2019-06-19 Oleksandr Shchur , Maximilian Mumme , Aleksandar Bojchevski , Stephan Günnemann

Graph Neural Networks (GNNs) have shown great potential in the field of graph representation learning. Standard GNNs define a local message-passing mechanism which propagates information over the whole graph domain by stacking multiple…

计算机视觉与模式识别 · 计算机科学 2023-06-01 Xiaoxin He , Bryan Hooi , Thomas Laurent , Adam Perold , Yann LeCun , Xavier Bresson

Residual connections and normalization layers have become standard design choices for graph neural networks (GNNs), and were proposed as solutions to the mitigate the oversmoothing problem in GNNs. However, how exactly these methods help…

机器学习 · 计算机科学 2026-01-21 Michael Scholkemper , Xinyi Wu , Ali Jadbabaie , Michael T. Schaub

Graph Neural Networks (GNNs) are powerful models that can manage complex data sources and their interconnection links. One of GNNs' main drawbacks is their lack of interpretability, which limits their application in sensitive fields. In…

机器学习 · 计算机科学 2026-03-24 Salvatore Calderaro , Domenico Amato , Giosuè Lo Bosco , Riccardo Rizzo , Filippo Vella

Benefiting from the message passing mechanism, Graph Neural Networks (GNNs) have been successful on flourish tasks over graph data. However, recent studies have shown that attackers can catastrophically degrade the performance of GNNs by…

机器学习 · 计算机科学 2023-04-24 Kuan Li , Yang Liu , Xiang Ao , Jianfeng Chi , Jinghua Feng , Hao Yang , Qing He

In this work, we propose to train a graph neural network via resampling from a graphon estimate obtained from the underlying network data. More specifically, the graphon or the link probability matrix of the underlying network is first…

机器学习 · 计算机科学 2021-09-07 Ziqing Hu , Yihao Fang , Lizhen Lin

This paper explores sparsification methods as a form of regularization in Graph Neural Networks (GNNs) to address high memory usage and computational costs in large-scale graph applications. Using techniques from Network Science and Machine…

机器学习 · 计算机科学 2026-02-12 Charlotte Cambier van Nooten , Christos Aronis , Yuliya Shapovalova , Lucia Cavallaro

While Graph Neural Networks (GNNs) are powerful models for learning representations on graphs, most state-of-the-art models do not have significant accuracy gain beyond two to three layers. Deep GNNs fundamentally need to address: 1).…

Following the success of Word2Vec embeddings, graph embeddings (GEs) have gained substantial traction. GEs are commonly generated and evaluated extrinsically on downstream applications, but intrinsic evaluations of the original graph…

机器学习 · 计算机科学 2023-09-06 Hong Yung Yip , Chidaksh Ravuru , Neelabha Banerjee , Shashwat Jha , Amit Sheth , Aman Chadha , Amitava Das

Message passing mechanism contributes to the success of GNNs in various applications, but also brings the oversquashing problem. Recent works combat oversquashing by improving the graph spectrums with rewiring techniques, disrupting the…

机器学习 · 计算机科学 2024-03-19 Haiquan Qiu , Yatao Bian , Quanming Yao