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Traffic flow prediction is one of the most fundamental tasks of intelligent transportation systems. The complex and dynamic spatial-temporal dependencies make the traffic flow prediction quite challenging. Although existing spatial-temporal…

机器学习 · 计算机科学 2023-10-13 Haiyang Liu , Chunjiang Zhu , Detian Zhang , Qing Li

Intelligent Transportation Systems (ITS) are vital in modern traffic management and optimization, significantly enhancing traffic efficiency and safety. Recently, diffusion models have emerged as transformative tools for addressing complex…

系统与控制 · 电气工程与系统科学 2025-05-09 Mingxing Peng , Kehua Chen , Xusen Guo , Qiming Zhang , Hui Zhong , Meixin Zhu , Hai Yang

Traffic signal control systems (TSCSs) are integral to intelligent traffic management, fostering efficient vehicle flow. Traditional approaches often simplify road networks into standard graphs, which results in a failure to consider the…

多智能体系统 · 计算机科学 2025-04-04 Kang Wang , Zhishu Shen , Zhen Lei , Tiehua Zhang

Traffic signal control is an important and challenging real-world problem, which aims to minimize the travel time of vehicles by coordinating their movements at the road intersections. Current traffic signal control systems in use still…

机器学习 · 计算机科学 2020-01-17 Hua Wei , Guanjie Zheng , Vikash Gayah , Zhenhui Li

Accurate traffic state prediction is the foundation of transportation control and guidance. It is very challenging due to the complex spatiotemporal dependencies in traffic data. Existing works cannot perform well for multi-step traffic…

机器学习 · 计算机科学 2021-08-17 Jiexia Ye , Furong Zheng , Juanjuan Zhao , Kejiang Ye , Chengzhong Xu

This paper presents a mixed traffic control policy designed to optimize traffic efficiency across diverse road topologies, addressing issues of congestion prevalent in urban environments. A model-free reinforcement learning (RL) approach is…

机器人学 · 计算机科学 2025-01-29 Chuyang Xiao , Dawei Wang , Xinzheng Tang , Jia Pan , Yuexin Ma

Spatiotemporal Traffic Data (STTD) measures the complex dynamical behaviors of the multiscale transportation system. Existing methods aim to reconstruct STTD using low-dimensional models. However, they are limited to data-specific…

机器学习 · 计算机科学 2024-10-25 Tong Nie , Guoyang Qin , Wei Ma , Jian Sun

We study the forecasting problem for traffic with dynamic, possibly periodical, and joint spatial-temporal dependency between regions. Given the aggregated inflow and outflow traffic of regions in a city from time slots 0 to t-1, we predict…

机器学习 · 计算机科学 2022-05-05 Guanyao Li , Shuhan Zhong , S. -H. Gary Chan , Ruiyuan Li , Chih-Chieh Hung , Wen-Chih Peng

Urban road transport is a major civilisational and economic challenge, affecting the quality of life and economic activity. Addressing these challenges requires a multidisciplinary approach and sustainable urban planning strategies to…

偏微分方程分析 · 数学 2026-05-20 Mauritz N. Cartier van Dissel , Paweł Gora , Dragoş Manea

Modeling traffic dynamics is a critical challenge for urban computing, with applications from real-time traffic management to infrastructure planning. However, progress in this area is fundamentally constrained by a lack of large-scale…

Although there are many datasets for traffic sign classification, there are few datasets collected for traffic sign recognition and few of them obtain enough instances especially for training a model with the deep learning method. The deep…

计算机视觉与模式识别 · 计算机科学 2023-04-03 Jingzhan Ge

How to build an effective large-scale traffic state prediction system is a challenging but highly valuable problem. This study focuses on the construction of an effective solution designed for spatio-temporal data to predict large-scale…

机器学习 · 计算机科学 2019-11-14 Yang Liu , Fanyou Wu , Baosheng Yu , Zhiyuan Liu , Jieping Ye

Missing data is a challenge in many applications, including intelligent transportation systems (ITS). In this paper, we study traffic speed and travel time estimations in ITS, where portions of the collected data are missing due to sensor…

机器学习 · 计算机科学 2022-11-21 Bahareh Najafi , Saeedeh Parsaeefard , Alberto Leon-Garcia

Network traffic prediction is essential for automating modern network management. It is a difficult time series forecasting (TSF) problem that has been addressed by Deep Learning (DL) models due to their ability to capture complex patterns.…

网络与互联网体系结构 · 计算机科学 2026-01-07 Eilaf MA Babai , Aalaa MA Babai , Koji Okamura

Traffic Sign Recognition (TSR) is a core perception capability for autonomous driving, where robustness to cross-region variation, long-tailed categories, and semantic ambiguity is essential for reliable real-world deployment. Despite…

计算机视觉与模式识别 · 计算机科学 2026-03-25 Guoyang Zhao , Weiqing Qi , Kai Zhang , Chenguang Zhang , Zeying Gong , Zhihai Bi , Kai Chen , Benshan Ma , Ming Liu , Jun Ma

Our goal is to use overhead imagery to understand patterns in traffic flow, for instance answering questions such as how fast could you traverse Times Square at 3am on a Sunday. A traditional approach for solving this problem would be to…

计算机视觉与模式识别 · 计算机科学 2020-12-22 Scott Workman , Nathan Jacobs

Traffic prediction is essential for the progression of Intelligent Transportation Systems (ITS) and the vision of smart cities. While Spatial-Temporal Graph Neural Networks (STGNNs) have shown promise in this domain by leveraging Graph…

机器学习 · 计算机科学 2023-08-24 Wenying Duan , Hong Rao , Wei Huang , Xiaoxi He

Time series analysis has gained significant attention due to its critical applications in diverse fields such as healthcare, finance, and sensor networks. The complexity and non-stationarity of time series make it challenging to capture the…

机器学习 · 计算机科学 2024-10-31 Guancen Lin , Cong Shen , Aijing Lin

Accurate, and effective traffic forecasting is vital for smart traffic systems, crucial in urban traffic planning and management. Current Spatio-Temporal Transformer models, despite their prediction capabilities, struggle with balancing…

机器学习 · 计算机科学 2026-01-29 Zhiqi Shao , Michael G. H. Bell , Ze Wang , D. Glenn Geers , Xusheng Yao , Junbin Gao

Real-time traffic flow prediction can not only provide travelers with reliable traffic information so that it can save people's time, but also assist the traffic management agency to manage traffic system. It can greatly improve the…

机器学习 · 统计学 2018-08-17 Zeren Tan , Ruimin Li