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Taxi demand prediction is an important building block to enabling intelligent transportation systems in a smart city. An accurate prediction model can help the city pre-allocate resources to meet travel demand and to reduce empty taxis on…

机器学习 · 计算机科学 2018-02-28 Huaxiu Yao , Fei Wu , Jintao Ke , Xianfeng Tang , Yitian Jia , Siyu Lu , Pinghua Gong , Jieping Ye , Zhenhui Li

Short-term traffic flow prediction is a vital branch of the Intelligent Traffic System (ITS) and plays an important role in traffic management. Graph convolution network (GCN) is widely used in traffic prediction models to better deal with…

机器学习 · 计算机科学 2022-05-11 Zhijun Chen , Zhe Lu , Qiushi Chen , Hongliang Zhong , Yishi Zhang , Jie Xue , Chaozhong Wu

Accurate traffic prediction is a challenging task in intelligent transportation systems because of the complex spatio-temporal dependencies in transportation networks. Many existing works utilize sophisticated temporal modeling approaches…

机器学习 · 计算机科学 2022-07-25 Guangyin Jin , Fuxian Li , Jinlei Zhang , Mudan Wang , Jincai Huang

Short-term passenger demand forecasting is of great importance to the on-demand ride service platform, which can incentivize vacant cars moving from over-supply regions to over-demand regions. The spatial dependences, temporal dependences,…

机器学习 · 计算机科学 2018-02-13 Jintao Ke , Hongyu Zheng , Hai Yang , Xiqun , Chen

Electric vehicles can offer a low carbon emission solution to reverse rising emission trends. However, this requires that the energy used to meet the demand is green. To meet this requirement, accurate forecasting of the charging demand is…

机器学习 · 计算机科学 2021-06-22 Frederik Boe Hüttel , Inon Peled , Filipe Rodrigues , Francisco C. Pereira

Traffic forecasting is a significant part of intelligent transportation systems. One of the critical challenges of traffic forecasting is to find spatio-temporal correlations. In recent years, graph convolutional networks and graph…

人工智能 · 计算机科学 2026-05-19 Tianchi Zhang

We study the problem of estimating a temporally varying coefficient and varying structure (VCVS) graphical model underlying nonstationary time series data, such as social states of interacting individuals or microarray expression profiles…

机器学习 · 统计学 2010-12-21 Mladen Kolar , Eric P. Xing

Spatio-temporal graph neural networks (STGNN) have become the most popular solution to traffic forecasting. While successful, they rely on the message passing scheme of GNNs to establish spatial dependencies between nodes, and thus…

机器学习 · 计算机科学 2023-01-31 Xu Liu , Yuxuan Liang , Chao Huang , Hengchang Hu , Yushi Cao , Bryan Hooi , Roger Zimmermann

Network utilisation efficiency can, at least in principle, often be improved by dynamically re-configuring routing policies to better distribute on-going large data transfers. Unfortunately, the information necessary to decide on an…

网络与互联网体系结构 · 计算机科学 2021-09-08 Joanna Waczynska , Edoardo Martelli , Sofia Vallecorsa , Edward Karavakis , TonyCass

Short-term demand forecasting models commonly combine convolutional and recurrent layers to extract complex spatiotemporal patterns in data. Long-term histories are also used to consider periodicity and seasonality patterns as time series…

机器学习 · 计算机科学 2019-10-15 Doyup Lee , Suehun Jung , Yeongjae Cheon , Dongil Kim , Seungil You

Traffic flow characteristics are one of the most critical decision-making and traffic policing factors in a region. Awareness of the predicted status of the traffic flow has prime importance in traffic management and traffic information…

机器学习 · 计算机科学 2020-02-20 Mehrdad Farahani , Marzieh Farahani , Mohammad Manthouri , Okyay Kaynak

Inter-city highway transportation is significant for urban life. As one of the key functions in intelligent transportation system (ITS), traffic evaluation always plays significant role nowadays, and daily traffic flow prediction still…

机器学习 · 计算机科学 2023-08-11 Weilong Ding , Tianpu Zhang , Jianwu Wang , Zhuofeng Zhao

Despite the success of various methods in addressing the issue of spatial reconstruction of dynamical systems with sparse observations, spatio-temporal prediction for sparse fields remains a challenge. Existing Kriging-based frameworks for…

机器学习 · 计算机科学 2024-09-04 Hanyang Wang , Hao Zhou , Sibo Cheng

The effective deployment of connected vehicular networks is contingent upon maintaining a desired performance across spatial and temporal domains. In this paper, a graph-based framework, called SMART, is proposed to model and keep track of…

信号处理 · 电气工程与系统科学 2021-03-16 Juntong Liu , Yong Xiao , Yingyu Li , Guangming Shiyz , Walid Saad , H. Vincent Poor

This paper focuses on spatiotemporal (ST) traffic prediction using graph neural networks (GNNs). Given that ST data comprises non-stationary and complex temporal patterns, interpreting and predicting such trends is inherently challenging.…

机器学习 · 计算机科学 2025-07-22 Osama Ahmad , Lukas Wesemann , Fabian Waschkowski , Zubair Khalid

Taxi arrival time prediction is essential for building intelligent transportation systems. Traditional prediction methods mainly rely on extracting features from traffic maps, which cannot model complex situations and nonlinear spatial and…

机器学习 · 计算机科学 2021-10-01 ZiChuan Liu , Zhaoyang Wu , Meng Wang , Rui Zhang

Large amounts of traffic can lead to negative effects such as increased car accidents, air pollution, and significant time wasted. Understanding traffic speeds on any given road segment can be highly beneficial for traffic management…

机器学习 · 计算机科学 2024-11-04 Alexandru T. Cismaru

Precise congestion prediction from a placement solution plays a crucial role in circuit placement. This work proposes the lattice hypergraph (LH-graph), a novel graph formulation for circuits, which preserves netlist data during the whole…

机器学习 · 计算机科学 2022-03-25 Bowen Wang , Guibao Shen , Dong Li , Jianye Hao , Wulong Liu , Yu Huang , Hongzhong Wu , Yibo Lin , Guangyong Chen , Pheng Ann Heng

Taxi demand prediction has recently attracted increasing research interest due to its huge potential application in large-scale intelligent transportation systems. However, most of the previous methods only considered the taxi demand…

机器学习 · 计算机科学 2019-05-17 Lingbo Liu , Zhilin Qiu , Guanbin Li , Qing Wang , Wanli Ouyang , Liang Lin

Spatial-temporal forecasting has attracted tremendous attention in a wide range of applications, and traffic flow prediction is a canonical and typical example. The complex and long-range spatial-temporal correlations of traffic flow bring…

机器学习 · 计算机科学 2021-06-25 Zheng Fang , Qingqing Long , Guojie Song , Kunqing Xie