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The GHM multi-level discrete wavelet transform is proposed as preprocessing for image super resolution with convolutional neural networks. Previous works perform analysis with the Haar wavelet only. In this work, 37 single-level wavelets…

Image and Video Processing · Electrical Eng. & Systems 2022-04-19 Ben Lowe , Hadi Salman , Justin Zhan

Weather forecasting plays a critical role in various sectors, driving decision-making and risk management. However, traditional methods often struggle to capture the complex dynamics of meteorological systems, particularly in the presence…

Computer Vision and Pattern Recognition · Computer Science 2024-05-30 Jiaze Wang , Hao Chen , Hongcan Xu , Jinpeng Li , Bowen Wang , Kun Shao , Furui Liu , Huaxi Chen , Guangyong Chen , Pheng-Ann Heng

With billions of people facing moderate or severe food insecurity, the resilience of the global food supply will be of increasing concern due to the effects of climate change and geopolitical events. In this paper we describe a framework to…

Computer Vision and Pattern Recognition · Computer Science 2024-11-12 David Willmes , Nick Krall , James Tanis , Zachary Terner , Fernando Tavares , Chris Miller , Joe Haberlin , Matt Crichton , Alexander Schlichting

Early and accurate prediction of solar active region (AR) emergence is crucial for space weather forecasting. Building on established Long Short-Term Memory (LSTM) based approaches for forecasting the continuum intensity decrease associated…

Solar and Stellar Astrophysics · Physics 2026-01-21 Jonas Tirona , Sarang Patil , Spiridon Kasapis , Eren Dogan , John Stefan , Irina N. Kitiashvili , Alexander G. Kosovichev , Mengjia Xu

Accurate prediction of tropical cyclones remains a major challenge for both numerical weather prediction and emerging artificial intelligence weather prediction systems. While recent global AI models have demonstrated strong skill in…

Atmospheric and Oceanic Physics · Physics 2026-03-17 Zeyi Niu , Wei Huang , Sirong Huang , Zhuo Wang , Mu Mu , Mengqi Yang , Xinhai Han , Haofei Sun , Zhaoyang Huo , Bo Qin

We present WeatherMesh-3 (WM-3), an operational transformer-based global weather forecasting system that improves the state of the art in both accuracy and computational efficiency. We introduce the following advances: 1) a latent rollout…

Machine Learning · Computer Science 2025-03-31 Haoxing Du , Lyna Kim , Joan Creus-Costa , Jack Michaels , Anuj Shetty , Todd Hutchinson , Christopher Riedel , John Dean

Designing early warning systems for harsh weather and its effects, such as urban flooding or landslides, requires accurate short-term forecasts (nowcasts) of precipitation. Nowcasting is a significant task with several environmental…

Machine Learning · Computer Science 2023-02-10 Christos Kaparakis , Siamak Mehrkanoon

Forecasting weather and climate events is crucial for making appropriate measures to mitigate environmental hazards and minimize losses. However, existing environmental forecasting research focuses narrowly on predicting numerical…

Machine Learning · Computer Science 2025-02-18 Haobo Li , Zhaowei Wang , Jiachen Wang , Yueya Wang , Alexis Kai Hon Lau , Huamin Qu

Effective monitoring of walnut water status and stress level across the whole orchard is an essential step towards precision irrigation management of walnuts, a significant crop in California. This study presents a machine learning approach…

Computer Vision and Pattern Recognition · Computer Science 2024-01-11 Kaitlyn Wang , Yufang Jin

Accurate traffic flow forecasting is essential for intelligent transportation systems and urban traffic management. However, single model approaches often fail to capture the complex, nonlinear, and multi scale temporal patterns in traffic…

Machine Learning · Computer Science 2025-10-29 Fujiang Yuan , Yangrui Fan , Xiaohuan Bing , Zhen Tian , Chunhong Yuan , Yankang Li

We present an operations-ready multi-model ensemble weather forecasting system which uses hybrid data-driven weather prediction models coupled with the European Centre for Medium-range Weather Forecasts (ECMWF) ocean model to predict global…

Atmospheric and Oceanic Physics · Physics 2024-03-26 Jonathan A. Weyn , Divya Kumar , Jeremy Berman , Najeeb Kazmi , Sylwester Klocek , Pete Luferenko , Kit Thambiratnam

Accurate weather forecasting holds significant importance, serving as a crucial tool for decision-making in various industrial sectors. The limitations of statistical models, assuming independence among data points, highlight the need for…

Machine Learning · Computer Science 2025-01-22 Anuvab Sen , Udayon Sen , Mayukhi Paul , Apurba Prasad Padhy , Sujith Sai , Aakash Mallik , Chhandak Mallick

Extreme rainfall over the Indian monsoon region poses severe societal and infrastructural risks but remains difficult to predict at daily time scales due to stochastic convective triggering and multiscale atmospheric interactions. While…

Numerical Analysis · Mathematics 2026-02-04 Arun Govind Neelan

The goal of precipitation nowcasting is to predict the future rainfall intensity in a local region over a relatively short period of time. Very few previous studies have examined this crucial and challenging weather forecasting problem from…

Computer Vision and Pattern Recognition · Computer Science 2015-09-22 Xingjian Shi , Zhourong Chen , Hao Wang , Dit-Yan Yeung , Wai-kin Wong , Wang-chun Woo

Real-time water-level monitoring across many locations is vital for flood response, infrastructure management, and environmental forecasting. Yet many sensing methods rely on fixed instruments - acoustic, radar, camera, or pressure probes -…

Signal Processing · Electrical Eng. & Systems 2025-11-27 Ayoob Salari , Kai Wu , Khawaja Fahad Masood , Y. Jay Guo , J. Andrew Zhang

The knowledge of type of precipitating cloud is crucial for radar based quantitative estimates of precipitation. We propose a novel model called CloudSense which uses machine learning to accurately identify the type of precipitating clouds…

Atmospheric and Oceanic Physics · Physics 2024-05-13 Mehzooz Nizar , Jha K. Ambuj , Manmeet Singh , Vaisakh S. B , G. Pandithurai

Spatio-temporal (ST) data, which represent multiple time series data corresponding to different spatial locations, are ubiquitous in real-world dynamic systems, such as air quality readings. Forecasting over ST data is of great importance…

Machine Learning · Computer Science 2018-10-01 Zheyi Pan , Yuxuan Liang , Junbo Zhang , Xiuwen Yi , Yong Yu , Yu Zheng

Satellite-derived data products and climate model simulations of geophysical variables like precipitation, often exhibit systematic biases compared to in-situ measurements. Bias correction and spatial downscaling are fundamental components…

Machine Learning · Computer Science 2026-02-16 Sumanta Chandra Mishra Sharma , Adway Mitra , Auroop Ratan Ganguly

Commonly used features in spoken language identification (LID), such as mel-spectrogram or MFCC, lose high-frequency information due to windowing. The loss further increases for longer temporal contexts. To improve generalization of the…

Audio and Speech Processing · Electrical Eng. & Systems 2023-10-04 Spandan Dey , Premjeet Singh , Goutam Saha

Long Short-Term Memory (LSTM) models are trained to predict forecast errors for the High-Resolution Rapid Refresh (HRRR) model using the New York State Mesonet and Oklahoma State Mesonet near-surface weather observations as ground truth.…

Atmospheric and Oceanic Physics · Physics 2026-05-15 David Aaron Evans , Kara J. Sulia , Nick P. Bassill , Chris D. Thorncroft , Jay C. Rothenberger , Lauriana C. Gaudet
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