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Graph neural networks (GNNs) have been widely applied in traffic demand prediction, and transportation modes can be divided into station-based mode and free-floating traffic mode. Existing research in traffic graph construction primarily…

机器学习 · 计算机科学 2025-01-03 Jinyan Hou , Shan Liu , Ya Zhang , Haotong Qin

The present paper is devoted to clustering geometric graphs. While the standard spectral clustering is often not effective for geometric graphs, we present an effective generalization, which we call higher-order spectral clustering. It…

机器学习 · 计算机科学 2021-03-16 Konstantin Avrachenkov , Andrei Bobu , Maximilien Dreveton

We study the problem of clustering nodes in a dynamic graph, where the connections between nodes and nodes' cluster memberships may change over time, e.g., due to community migration. We first propose a dynamic stochastic block model that…

机器学习 · 计算机科学 2021-06-24 Yuhang Yao , Carlee Joe-Wong

Real-world heterogeneous graphs are inherently noisy and usually not in the optimal graph structures for downstream tasks, which often adversely affects the performance of GRL models in downstream tasks. Although Graph Structure Learning…

机器学习 · 计算机科学 2026-04-08 He Zhao , Zhiwei Zeng , Yongwei Wang , Chunyan Miao

Graph neural network (GNN)-based graph learning has been popular in natural language and programming language processing, particularly in text and source code classification. Typically, GNNs are constructed by incorporating alternating…

机器学习 · 计算机科学 2024-05-24 Zeming Dong , Qiang Hu , Zhenya Zhang , Yuejun Guo , Maxime Cordy , Mike Papadakis , Yves Le Traon , Jianjun Zhao

Under circumstances of heterophily, where nodes with different labels tend to be connected based on semantic meanings, Graph Neural Networks (GNNs) often exhibit suboptimal performance. Current studies on graph heterophily mainly focus on…

机器学习 · 计算机科学 2024-11-13 Yilun Zheng , Jiahao Xu , Lihui Chen

We consider the graph link prediction task, which is a classic graph analytical problem with many real-world applications. With the advances of deep learning, current link prediction methods commonly compute features from subgraphs centered…

机器学习 · 计算机科学 2020-10-21 Lei Cai , Jundong Li , Jie Wang , Shuiwang Ji

Classifying whole images is a classic problem in machine learning, and graph neural networks are a powerful methodology to learn highly irregular geometries. It is often the case that certain parts of a point cloud are more important than…

计算机视觉与模式识别 · 计算机科学 2020-03-19 Lindsey Gray , Thomas Klijnsma , Shamik Ghosh

Signals from different modalities each have their own combination algebra which affects their sampling processing. RGB is mostly linear; depth is a geometric signal following the operations of mathematical morphology. If a network obtaining…

计算机视觉与模式识别 · 计算机科学 2023-10-12 Rick Groenendijk , Leo Dorst , Theo Gevers

Social bot detection is pivotal for safeguarding the integrity of online information ecosystems. Although recent graph neural network (GNN) solutions achieve strong results, they remain hindered by two practical challenges: (i) severe class…

社会与信息网络 · 计算机科学 2026-02-26 Longlong Zhang , Xi Wang , Haotong Du , Yangyi Xu , Zhuo Liu , Yang Liu

Heterogeneous graph neural network has unleashed great potential on graph representation learning and shown superior performance on downstream tasks such as node classification and clustering. Existing heterogeneous graph learning networks…

机器学习 · 计算机科学 2022-11-01 Tiehua Zhang , Yuze Liu , Yao Yao , Youhua Xia , Xin Chen , Xiaowei Huang , Jiong Jin

Finding a suitable data representation for a specific task has been shown to be crucial in many applications. The success of subspace clustering depends on the assumption that the data can be separated into different subspaces. However,…

计算机视觉与模式识别 · 计算机科学 2021-06-21 Zhengrui Ma , Zhao Kang , Guangchun Luo , Ling Tian

Graph machine learning has led to a significant increase in the capabilities of models that learn on arbitrary graph-structured data and has been applied to molecules, social networks, recommendation systems, and transportation, among other…

机器学习 · 计算机科学 2025-06-23 Vijay Prakash Dwivedi , Charilaos Kanatsoulis , Shenyang Huang , Jure Leskovec

Hashing techniques, also known as binary code learning, have recently gained increasing attention in large-scale data analysis and storage. Generally, most existing hash clustering methods are single-view ones, which lack complete structure…

计算机视觉与模式识别 · 计算机科学 2019-12-12 Guangqi Jiang , Huibing Wang , Jinjia Peng , Dongyan Chen , Xianping Fu

Graph neural networks (GNNs) are powerful models that have been successful in various graph representation learning tasks. Whereas gradient boosted decision trees (GBDT) often outperform other machine learning methods when faced with…

机器学习 · 计算机科学 2021-04-01 Sergei Ivanov , Liudmila Prokhorenkova

Graph neural networks achieve high accuracy in link prediction by jointly leveraging graph topology and node attributes. Topology, however, is represented indirectly; state-of-the-art methods based on subgraph classification label nodes…

机器学习 · 计算机科学 2022-03-17 Liming Pan , Cheng Shi , Ivan Dokmanić

Graph Neural Networks (GNNs) often struggle with heterophilic data, where connected nodes may have dissimilar labels, as they typically assume homophily and rely on local message passing. To address this, we propose creating alternative…

机器学习 · 计算机科学 2025-06-11 Victor M. Tenorio , Madeline Navarro , Samuel Rey , Santiago Segarra , Antonio G. Marques

Graph kernels are widely used for measuring the similarity between graphs. Many existing graph kernels, which focus on local patterns within graphs rather than their global properties, suffer from significant structure information loss when…

机器学习 · 计算机科学 2019-12-02 Lingfei Wu , Ian En-Hsu Yen , Zhen Zhang , Kun Xu , Liang Zhao , Xi Peng , Yinglong Xia , Charu Aggarwal

Graph Neural Networks (GNNs) have demonstrated remarkable success in various domains such as social networks, molecular chemistry, and more. A crucial component of GNNs is the pooling procedure, in which the node features calculated by the…

机器学习 · 计算机科学 2026-05-19 Yaniv Galron , Hadar Sinai , Haggai Maron , Moshe Eliasof

Machine learning (ML) has been increasingly applied in concrete research to optimize performance and mixture design. However, one major challenge in applying ML to cementitious materials is the limited size and diversity of available…

计算工程、金融与科学 · 计算机科学 2025-12-18 Mahmuda Sharmin , Taihao Han , Jie Huang , Narayanan Neithalath , Gaurav Sant , Aditya Kumar
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