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Recently, air pollution is one of the most concerns for big cities. Predicting air quality for any regions and at any time is a critical requirement of urban citizens. However, air pollution prediction for the whole city is a challenging…

机器学习 · 计算机科学 2019-12-02 Van-Duc Le , Tien-Cuong Bui , Sang Kyun Cha

Air pollution poses a serious threat to sustainable environmental conditions in the 21st century. Its importance in determining the health and living standards in urban settings is only expected to increase with time. Various factors…

机器学习 · 计算机科学 2022-06-16 Mayukh Bhattacharyya , Sayan Nag , Udita Ghosh

With the progress of the urbanisation process, the urban transportation system is extremely critical to the development of cities and the quality of life of the citizens. Among them, it is one of the most important tasks to judge traffic…

机器学习 · 计算机科学 2023-08-17 Bodong Zhou , Jiahui Liu , Songyi Cui , Yaping Zhao

Ensemble weather predictions typically show systematic errors that have to be corrected via post-processing. Even state-of-the-art post-processing methods based on neural networks often solely rely on location-specific predictors that…

机器学习 · 计算机科学 2022-04-12 Sebastian Lerch , Kai L. Polsterer

The rapid rise of air pollution events necessitates accurate, real-time monitoring for informed mitigation strategies. Data Assimilation (DA) methods provide promising solutions, but their effectiveness hinges heavily on optimal measurement…

机器人学 · 计算机科学 2024-07-18 Ichrak Mokhtari , Walid Bechkit , Mohamed Sami Assenine , Hervé Rivano

Recent technological advances have enabled researchers in a variety of fields to collect accurately geocoded data for several variables simultaneously. In many cases it may be most appropriate to jointly model these multivariate spatial…

统计方法学 · 统计学 2015-05-29 Maria A. Terres , Montserrat Fuentes , Dean Hesterberg , Matthew Polizzotto

Effective management of urban traffic is important for any smart city initiative. Therefore, the quality of the sensory traffic data is of paramount importance. However, like any sensory data, urban traffic data are prone to imperfections…

机器学习 · 计算机科学 2021-03-16 Ahmed Ben Said , Abdelkarim Erradi

On-road air pollution exhibits substantial variability over short distances due to emission sources, dilution, and physicochemical processes. Integrating mobile monitoring data with street view images (SVIs) holds promise for predicting…

机器学习 · 计算机科学 2024-09-20 Hui Zhong , Di Chen , Pengqin Wang , Wenrui Wang , Shaojie Shen , Yonghong Liu , Meixin Zhu

As a result of significant advances in deep learning, computer vision technology has been widely adopted in the field of traffic surveillance. Nonetheless, it is difficult to find a universal model that can measure traffic parameters…

计算机视觉与模式识别 · 计算机科学 2020-11-25 Seungyun Jeong , Keemin Sohn

Inferring graph structure from observations on the nodes is an important and popular network science task. Departing from the more common inference of a single graph and motivated by social and biological networks, we study the problem of…

机器学习 · 统计学 2020-10-19 Madeline Navarro , Yuhao Wang , Antonio G. Marques , Caroline Uhler , Santiago Segarra

Calculating an Air Quality Index (AQI) typically uses data streams from air quality sensors deployed at fixed locations and the calculation is a real time process. If one or a number of sensors are broken or offline, then the real time AQI…

机器学习 · 计算机科学 2022-12-21 Dinh Viet Cuong , Phuc H. Le-Khac , Adam Stapleton , Elke Eichlemann , Mark Roantree , Alan F. Smeaton

Matrix completion tackles the task of predicting missing values in a low-rank matrix based on a sparse set of observed entries. It is often assumed that the observation pattern is generated uniformly at random or has a very specific…

机器学习 · 统计学 2025-03-18 Yudong Chen , Xumei Xi , Christina Lee Yu

Air quality prediction is a typical spatio-temporal modeling problem, which always uses different components to handle spatial and temporal dependencies in complex systems separately. Previous models based on time series analysis and…

机器学习 · 计算机科学 2023-02-21 Jing Xu , Shuo Wang , Na Ying , Xiao Xiao , Jiang Zhang , Yun Cheng , Zhiling Jin , Gangfeng Zhang

This paper presents a novel efficient method for spatial monitoring of the distribution of correlated field signals, such as temperature, humidity, etc. using unmanned aerial vehicles (UAVs). The spatial signal is compressed to its…

信号处理 · 电气工程与系统科学 2024-11-27 Maryam Zahra , Homa Tajiani , Hadi Alasti

Air pollution remains one of the most formidable environmental threats to human health globally, particularly in urban areas, contributing to nearly 7 million premature deaths annually. Megacities, defined as cities with populations…

机器学习 · 计算机科学 2024-07-17 Harun Khan , Joseph Tso , Nathan Nguyen , Nivaan Kaushal , Ansh Malhotra , Nayel Rehman

With the intensification of global climate change, accurate prediction of air quality indicators, especially PM2.5 concentration, has become increasingly important in fields such as environmental protection, public health, and urban…

机器学习 · 计算机科学 2025-08-18 Zicheng Guo , Shuqi Wu , Meixing Zhu , He Guandi

This paper addresses the problem of traffic prediction in distributed backend systems and proposes a graph neural network based modeling approach to overcome the limitations of traditional models in capturing complex dependencies and…

分布式、并行与集群计算 · 计算机科学 2025-10-20 Zhimin Qiu , Feng Liu , Yuxiao Wang , Chenrui Hu , Ziyu Cheng , Di Wu

Traffic flow forecasting is a crucial task in transportation management and planning. The main challenges for traffic flow forecasting are that (1) as the length of prediction time increases, the accuracy of prediction will decrease; (2)…

人工智能 · 计算机科学 2024-05-13 Jianli Xiao , Baichao Long

Most consumer-level low-cost unmanned aerial vehicles (UAVs) have limited battery power and long charging time. Due to these energy constraints, they cannot accomplish many practical tasks, such as monitoring a sport or political event for…

机器人学 · 计算机科学 2021-01-27 Jyh-Ming Lien , Sam Rodriguez , Marco Morales

When predicting PM2.5 concentrations, it is necessary to consider complex information sources since the concentrations are influenced by various factors within a long period. In this paper, we identify a set of critical domain knowledge for…

信号处理 · 电气工程与系统科学 2021-10-12 Shuo Wang , Yanran Li , Jiang Zhang , Qingye Meng , Lingwei Meng , Fei Gao