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相关论文: Jointly spatial-temporal representation learning f…

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Robust prediction of citywide traffic flows at different time periods plays a crucial role in intelligent transportation systems. While previous work has made great efforts to model spatio-temporal correlations, existing methods still…

机器学习 · 计算机科学 2024-03-07 Jiahao Ji , Jingyuan Wang , Chao Huang , Junjie Wu , Boren Xu , Zhenhe Wu , Junbo Zhang , Yu Zheng

Temporal Knowledge Graph (TKG) representation learning embeds entities and event types into a continuous low-dimensional vector space by integrating the temporal information, which is essential for downstream tasks, e.g., event prediction…

机器学习 · 计算机科学 2023-12-13 Xing Tang , Ling Chen

Weather Forecasting is an attractive challengeable task due to its influence on human life and complexity in atmospheric motion. Supported by massive historical observed time series data, the task is suitable for data-driven approaches,…

机器学习 · 计算机科学 2022-09-20 Minbo Ma , Peng Xie , Fei Teng , Tianrui Li , Bin Wang , Shenggong Ji , Junbo Zhang

Spatial-temporal data forecasting of traffic flow is a challenging task because of complicated spatial dependencies and dynamical trends of temporal pattern between different roads. Existing frameworks typically utilize given spatial…

机器学习 · 计算机科学 2021-03-09 Mengzhang Li , Zhanxing Zhu

Trajectory representation learning plays a pivotal role in supporting various downstream tasks. Traditional methods in order to filter the noise in GPS trajectories tend to focus on routing-based methods used to simplify the trajectories.…

机器学习 · 计算机科学 2024-02-28 Zhipeng Ma , Zheyan Tu , Xinhai Chen , Yan Zhang , Deguo Xia , Guyue Zhou , Yilun Chen , Yu Zheng , Jiangtao Gong

Trajectory representation learning (TRL) maps trajectories to vectors that can be used for many downstream tasks. Existing TRL methods use either grid trajectories, capturing movement in free space, or road trajectories, capturing movement…

机器学习 · 计算机科学 2024-11-25 Silin Zhou , Shuo Shang , Lisi Chen , Peng Han , Christian S. Jensen

Traffic forecasting is essential to intelligent transportation systems, which is challenging due to the complicated spatial and temporal dependencies within a road network. Existing works usually learn spatial and temporal dependencies…

机器学习 · 计算机科学 2023-07-04 Binqing Wu , Ling Chen

Spatio-temporal graph neural networks have proven efficacy in capturing complex dependencies for urban computing tasks such as forecasting and kriging. Yet, their performance is constrained by the reliance on extensive data for training on…

机器学习 · 计算机科学 2024-11-08 Junfeng Hu , Xu Liu , Zhencheng Fan , Yifang Yin , Shili Xiang , Savitha Ramasamy , Roger Zimmermann

Time-evolving traffic flow forecasting are playing a vital role in intelligent transportation systems and smart cities. However, the dynamic traffic flow forecasting is a highly nonlinear problem with complex temporal-spatial dependencies.…

机器学习 · 计算机科学 2025-08-05 Zhenan Lin , Yuni Lai , Wai Lun Lo , Richard Tai-Chiu Hsung , Harris Sik-Ho Tsang , Xiaoyu Xue , Kai Zhou , Yulin Zhu

Vessel trajectory prediction is a critical component for ensuring maritime traffic safety and avoiding collisions. Due to the inherent uncertainty in vessel behavior, trajectory prediction systems must adopt a multimodal approach to…

人工智能 · 计算机科学 2025-03-12 Jin Wenzhe , Tang Haina , Zhang Xudong

Spatiotemporal forecasting has emerged as an indispensable building block of diverse smart city applications, such as intelligent transportation and smart energy management. Recent advancements have uncovered that the performance of…

机器学习 · 计算机科学 2024-09-30 Shuowei Cai , Hao Liu

The development of intelligent traffic light control systems is essential for smart transportation management. While some efforts have been made to optimize the use of individual traffic lights in an isolated way, related studies have…

多智能体系统 · 计算机科学 2020-12-01 Yanan Wang , Tong Xu , Xin Niu , Chang Tan , Enhong Chen , Hui Xiong

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

Demystifying the delay propagation mechanisms among multiple airports is fundamental to precise and interpretable delay prediction, which is crucial during decision-making for all aviation industry stakeholders. The principal challenge lies…

机器学习 · 计算机科学 2022-07-15 Yuankai Wu , Hongyu Yang , Yi Lin , Hong Liu

Reliable forecasting of traffic flow requires efficient modeling of traffic data. Indeed, different correlations and influences arise in a dynamic traffic network, making modeling a complicated task. Existing literature has proposed many…

机器学习 · 计算机科学 2024-02-20 Kishor Kumar Bhaumik , Fahim Faisal Niloy , Saif Mahmud , Simon Woo

Representing urban regions accurately and comprehensively is essential for various urban planning and analysis tasks. Recently, with the expansion of the city, modeling long-range spatial dependencies with multiple data sources plays an…

计算机视觉与模式识别 · 计算机科学 2024-06-04 Weiliang Chen , Qianqian Ren , Jinbao Li

Accurately forecasting the real-time travel demand for dockless scooter-sharing is crucial for the planning and operations of transportation systems. Deep learning models provide researchers with powerful tools to achieve this task, but…

计算机与社会 · 计算机科学 2024-10-28 Yiming Xu , Xilei Zhao , Xiaojian Zhang , Mudit Paliwal

As a core technology of Intelligent Transportation System (ITS), traffic flow prediction has a wide range of applications. Traffic flow data are spatial-temporal, which are not only correlated to spatial locations in road networks, but also…

人工智能 · 计算机科学 2024-12-24 Xiao Xu , Lei Zhang , Bailong Liu , Zhizhen Liang , Xuefei Zhang

Traffic forecasting is one of the most fundamental problems in transportation science and artificial intelligence. The key challenge is to effectively model complex spatial-temporal dependencies and correlations in modern traffic data.…

机器学习 · 计算机科学 2023-02-28 Haiyang Liu , Chunjiang Zhu , Detian Zhang , Qing Li

Representation learning of pedestrian trajectories transforms variable-length timestamp-coordinate tuples of a trajectory into a fixed-length vector representation that summarizes spatiotemporal characteristics. It is a crucial technique to…

机器学习 · 计算机科学 2018-11-21 Ka-Ho Chow , Anish Hiranandani , Yifeng Zhang , S. -H. Gary Chan