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相关论文: Spatial-Temporal Mixture-of-Graph-Experts for Mult…

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Many complex real-world systems exhibit inherently intertwined temporal and spatial characteristics. Spatio-temporal knowledge graphs (STKGs) have therefore emerged as a powerful representation paradigm, as they integrate entities,…

社会与信息网络 · 计算机科学 2025-12-19 Philipp Plamper , Hanna Köpcke , Anika Groß

Classifying subsets based on spatial and temporal features is crucial to the analysis of spatiotemporal data given the inherent spatial and temporal variability. Since no single clustering algorithm ensures optimal results, researchers have…

机器学习 · 计算机科学 2024-09-20 Francis Ndikum Nji , Omar Faruque , Mostafa Cham , Janeja Vandana , Jianwu Wang

The crime forecasting is an important problem as it greatly contributes to urban safety. Typically, the goal of the problem is to predict different types of crimes for each geographical region (like a neighborhood or censor tract) in the…

机器学习 · 计算机科学 2021-09-28 Chenyu Wang , Zongyu Lin , Xiaochen Yang , Jiao Sun , Mingxuan Yue , Cyrus Shahabi

A common practice in heterogeneous graph neural networks (HGNNs) is to condition parameters on node/edge types, assuming types reflect semantic roles. However, this can cause overreliance on surface-level labels and impede cross-type…

机器学习 · 计算机科学 2026-01-23 Georgiy Shakirov , Albert Arakelov

Long-term traffic prediction has always been a challenging task due to its dynamic temporal dependencies and complex spatial dependencies. In this paper, we propose a model that combines hybrid Transformer and spatio-temporal…

机器学习 · 计算机科学 2024-01-31 Wang Zhu , Doudou Zhang , Baichao Long , Jianli Xiao

Multivariate time-series anomaly detection is critically important in many applications, including retail, transportation, power grid, and water treatment plants. Existing approaches for this problem mostly employ either statistical models…

机器学习 · 计算机科学 2023-11-17 Yu Zheng , Huan Yee Koh , Ming Jin , Lianhua Chi , Khoa T. Phan , Shirui Pan , Yi-Ping Phoebe Chen , Wei Xiang

Advances in spatial transcriptomics (ST) technologies enable systematic molecular characterization of tumor microenvironment, tumor gradients and gene regulatory networks. Cancer progression is known to vary along pathological gradients,…

Medical time-series datasets have unique characteristics that make prediction tasks challenging. Most notably, patient trajectories often contain longitudinal variations in their input-output relationships, generally referred to as temporal…

机器学习 · 计算机科学 2021-02-24 Victor D. Bourgin , Ioana Bica , Mihaela van der Schaar

Multi-Agent Path Finding (MAPF) focuses on planning collision-free paths for multiple agents. However, during the execution of a MAPF plan, agents may encounter unexpected delays, which can lead to inefficiencies, deadlocks, or even…

多智能体系统 · 计算机科学 2025-01-14 He Jiang , Muhan Lin , Jiaoyang Li

Generative self-supervised learning (SSL), especially masked autoencoders, has become one of the most exciting learning paradigms and has shown great potential in handling graph data. However, real-world graphs are always heterogeneous,…

机器学习 · 计算机科学 2023-02-13 Yijun Tian , Kaiwen Dong , Chunhui Zhang , Chuxu Zhang , Nitesh V. Chawla

The classification of crime into discrete categories entails a massive loss of information. Crimes emerge out of a complex mix of behaviors and situations, yet most of these details cannot be captured by singular crime type labels. This…

计算与语言 · 计算机科学 2018-08-08 Da Kuang , P. Jeffrey Brantingham , Andrea L. Bertozzi

Timely accurate traffic forecast is crucial for urban traffic control and guidance. Due to the high nonlinearity and complexity of traffic flow, traditional methods cannot satisfy the requirements of mid-and-long term prediction tasks and…

机器学习 · 计算机科学 2018-07-13 Bing Yu , Haoteng Yin , Zhanxing Zhu

In dense traffic scenarios, ensuring safety while keeping high task performance for autonomous driving is a critical challenge. To address this problem, this paper proposes a computationally-efficient spatiotemporal receding horizon control…

机器人学 · 计算机科学 2024-05-28 Lei Zheng , Rui Yang , Zengqi Peng , Michael Yu Wang , Jun Ma

The classification of stellar light curves has become a key task in modern time-domain astronomy, fueled by the rapid growth of data from large-scale surveys such as Kepler and TESS. Although deep learning models have achieved high accuracy…

天体物理仪器与方法 · 物理学 2025-07-21 Cunshi Wang , Yu Bai , Xinrui Song , Jiacheng Xu , Henggeng Han , Yuyang Li , Xinjie Hu , Huiqin Yang , Jifeng Liu

Semi-supervised learning has been employed to alleviate the need for extensive labeled data for histopathology image segmentation, but existing methods struggle with noisy pseudo-labels due to ambiguous gland boundaries and morphological…

计算机视觉与模式识别 · 计算机科学 2025-09-18 Nguyen Lan Vi Vu , Thanh-Huy Nguyen , Thien Nguyen , Daisuke Kihara , Tianyang Wang , Xingjian Li , Min Xu

A sparse Mixture-of-Experts (MoE) architecture has emerged as a highly scalable solution by conditionally activating sub-modules without a proportional increase in computational costs. However, improving expert specialization to enhance…

机器学习 · 计算机科学 2025-09-16 Sugyeong Eo , Jungjun Lee , Chanjun Park , Heuiseok Lim

While graph neural networks (GNNs) have achieved great success in learning from graph-structured data, their reliance on local, pairwise message passing restricts their ability to capture complex, high-order subgraph patterns. leading to…

机器学习 · 计算机科学 2025-09-12 Junda Ye , Zhongbao Zhang , Li Sun , Siqiang Luo

Traffic flow forecasting on graphs has real-world applications in many fields, such as transportation system and computer networks. Traffic forecasting can be highly challenging due to complex spatial-temporal correlations and non-linear…

机器学习 · 计算机科学 2022-07-13 Aosong Feng , Leandros Tassiulas

Multi-environment (M-En) networks integrate diverse traffic sources, including Internet of Things (IoT) and traditional computing systems, creating complex and evolving conditions for malicious traffic detection. Existing machine learning…

密码学与安全 · 计算机科学 2025-11-12 Furqan Rustam , Islam Obaidat , Anca Delia Jurcut

Traffic forecasting is one of the most popular spatio-temporal tasks in the field of machine learning. A prevalent approach in the field is to combine graph convolutional networks and recurrent neural networks for the spatio-temporal…

机器学习 · 计算机科学 2021-12-08 Jeongwhan Choi , Hwangyong Choi , Jeehyun Hwang , Noseong Park
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