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Related papers: Fine-gained air quality inference based on low-qua…

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Low-cost air pollution sensor networks are increasingly being deployed globally, supplementing sparse regulatory monitoring with localized air quality data. In some areas, like Baltimore, Maryland, there are only few regulatory (reference)…

Applications · Statistics 2025-09-11 Claire Heffernan , Kirsten Koehler , Drew R. Gentner , Roger D. Peng , Abhirup Datta

The Mini-SiTian (MST) project is a pathfinder for China's next-generation large-scale time-domain survey, SiTian, aimed at discovering variable stars, transients, and explosive events. MST generates hundreds of thousands of transient alerts…

Instrumentation and Methods for Astrophysics · Physics 2025-04-03 Jing-Hang Shi , Hong-Rui Gu , Yang Huang , Yan-Xia Zhang , Peng-Liang Du

Sensor networks are currently an active research area mainly due to the potential of their applications. In this paper we investigate the use of Wireless Sensor Networks (WSN) for air pollution monitoring in Mauritius. With the fast growing…

Networking and Internet Architecture · Computer Science 2010-07-15 Kavi K. Khedo , Rajiv Perseedoss , Avinash Mungur , University of Mauritius , Mauritius

Recent studies show that in supervised fine-tuning (SFT) of large language models (LLMs), data quality matters more than quantity. While most data cleaning methods concentrate on filtering entire samples, the quality of individual tokens…

Computation and Language · Computer Science 2026-03-12 Jinlong Pang , Na Di , Zhaowei Zhu , Jiaheng Wei , Hao Cheng , Chen Qian , Yang Liu

Low-cost air pollution sensors, offering hyper-local characterization of pollutant concentrations, are becoming increasingly prevalent in environmental and public health research. However, low-cost air pollution data can be noisy, biased by…

Applications · Statistics 2023-02-21 Claire Heffernan , Roger Peng , Drew R. Gentner , Kirsten Koehler , Abhirup Datta

Air quality impacts people's health and daily life, affects the sensitive ecosystems, and even restrains a country's development. By collecting and processing the time series data of Air Quality Index (AQI) of 363 cities of China from Jan.…

Physics and Society · Physics 2020-06-24 Wenjun Zhang , Zhanpeng Guan , Jianyao Li , Zhu Su , Weibing Deng , Wei Li

Accurate short-term forecasting of air temperature and relative humidity is critical for urban management, especially in topographically complex cities such as Chongqing, China. This study compares seven machine learning models: eXtreme…

Machine Learning · Computer Science 2026-03-25 Jiaqi Dong

X-ray Photoelectron Spectroscopy (XPS) is a crucial technique for material surface analysis, yet interpreting its spectra is often challenging for both human analysts and automated methods due to the prevalence of variable spectral shifts…

Materials Science · Physics 2026-03-06 Issa Saddiq , Yuxin Fan , Robert G. Palgrave , Mark A. Isaacs , David Morgan , Keith T. Butler

Air pollution is a vital issue emerging from the uncontrolled utilization of traditional energy sources as far as developing countries are concerned. Hence, ingenious air pollution forecasting methods are indispensable to minimize the risk.…

Machine Learning · Computer Science 2022-11-29 Dhanalakshmi M , Radha V

Fine-grained annotations---e.g. dense image labels, image segmentation and text tagging---are useful in many ML applications but they are labor-intensive to generate. Moreover there are often systematic, structured errors in these…

Machine Learning · Computer Science 2020-03-26 Abubakar Abid , James Zou

Accurate air quality forecasts are vital for public health alerts, exposure assessment, and emissions control. In practice, observational data are often missing in varying proportions and patterns due to collection and transmission issues.…

Machine Learning · Computer Science 2025-11-05 Yuzhuang Pian , Taiyu Wang , Shiqi Zhang , Rui Xu , Yonghong Liu

ICT systems provide detailed information on computer network traffic. However, due to storage limitations, some of the information on past traffic is often only retained in an aggregated form. In this paper we show that Linear Gaussian…

Applications · Statistics 2022-01-19 Krzysztof Rusek , Mathias Drton

Low-cost particulate matter sensors (LCS) are an important source of air quality data, improving the spatial and temporal resolution of data gathered by sparsely placed official monitoring stations. Their readings, however, are subject to…

Atmospheric and Oceanic Physics · Physics 2024-03-15 Robert Blaga

Self-Attention Mechanism (SAM) excels at distilling important information from the interior of data to improve the computational efficiency of models. Nevertheless, many Quantum Machine Learning (QML) models lack the ability to distinguish…

Quantum Physics · Physics 2023-10-13 Ren-Xin Zhao , Jinjing Shi , Xuelong Li

Urbanization, climate change, and agricultural stress are increasing the demand for precise and timely environmental monitoring. Land Surface Temperature (LST) is a key variable in this context and is retrieved from remote sensing…

Computer Vision and Pattern Recognition · Computer Science 2025-12-11 Sofiane Bouaziz , Adel Hafiane , Raphael Canals , Rachid Nedjai

Air pollution has altered the Earth radiation balance, disturbed the ecosystem and increased human morbidity and mortality. Accordingly, a full-coverage high-resolution air pollutant dataset with timely updates and historical long-term…

Atmospheric and Oceanic Physics · Physics 2021-03-12 Guannan Geng , Qingyang Xiao , Shigan Liu , Xiaodong Liu , Jing Cheng , Yixuan Zheng , Dan Tong , Bo Zheng , Yiran Peng , Xiaomeng Huang , Kebin He , Qiang Zhang

Long-term visual localization is the problem of estimating the camera pose of a given query image in a scene whose appearance changes over time. It is an important problem in practice, for example, encountered in autonomous driving. In…

Computer Vision and Pattern Recognition · Computer Science 2019-08-20 Måns Larsson , Erik Stenborg , Carl Toft , Lars Hammarstrand , Torsten Sattler , Fredrik Kahl

Stochastic computing (SC) has emerged as an efficient low-power alternative for deploying neural networks (NNs) in resource-limited scenarios, such as the Internet of Things (IoT). By encoding values as serial bitstreams, SC significantly…

Machine Learning · Computer Science 2025-08-14 Ziheng Wang , Pedro Reviriego , Farzad Niknia , Zhen Gao , Javier Conde , Shanshan Liu , Fabrizio Lombardi

Identifying high-emission vehicles is a crucial step in regulating urban pollution levels and formulating traffic emission reduction strategies. However, in practical monitoring data, the proportion of high-emission state data is…

Machine Learning · Computer Science 2025-08-19 Yunning Cao , Lihong Pei , Jian Guo , Yang Cao , Yu Kang , Yanlong Zhao

With the rapid development of economy in China over the past decade, air pollution has become an increasingly serious problem in major cities and caused grave public health concerns in China. Recently, a number of studies have dealt with…

Computer Vision and Pattern Recognition · Computer Science 2015-08-21 Yuncheng Li , Jifei Huang , Jiebo Luo