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This paper presents an innovative approach to extreme precipitation nowcasting by employing Transformer-based generative models, namely NowcastingGPT with Extreme Value Loss (EVL) regularization. Leveraging a comprehensive dataset from the…

Time-series forecasting is crucial for numerous real-world applications including weather prediction and financial market modeling. While temporal-domain methods remain prevalent, frequency-domain approaches can effectively capture…

机器学习 · 计算机科学 2025-08-05 Zhixuan Li , Naipeng Chen , Seonghwa Choi , Sanghoon Lee , Weisi Lin

Climate change has led to an increase in frequency of extreme weather events. Early warning systems can prevent disasters and loss of life. Managing such events remain a challenge for both public and private institutions. Precipitation…

大气与海洋物理 · 物理学 2023-12-13 Ajitabh Kumar

Precipitation nowcasting is an important spatio-temporal prediction task to predict the radar echoes sequences based on current observations, which can serve both meteorological science and smart city applications. Due to the chaotic…

计算机视觉与模式识别 · 计算机科学 2024-03-27 Demin Yu , Xutao Li , Yunming Ye , Baoquan Zhang , Chuyao Luo , Kuai Dai , Rui Wang , Xunlai Chen

Deep learning has been successfully applied to precipitation nowcasting. In this work, we propose a pre-training scheme and a new loss function for improving deep-learning-based nowcasting. First, we adapt U-Net, a widely-used deep-learning…

计算机视觉与模式识别 · 计算机科学 2022-03-14 Jihoon Ko , Kyuhan Lee , Hyunjin Hwang , Seok-Geun Oh , Seok-Woo Son , Kijung Shin

Extrapolating future weather radar echoes from past observations is a complex task vital for precipitation nowcasting. The spatial morphology and temporal evolution of radar echoes exhibit a certain degree of correlation, yet they also…

计算机视觉与模式识别 · 计算机科学 2024-02-29 Liangyu Xu , Wanxuan Lu , Hongfeng Yu , Fanglong Yao , Xian Sun , Kun Fu

Accurate forecasting of extreme weather events such as heavy rainfall or storms is critical for risk management and disaster mitigation. Although high-resolution radar observations have spurred extensive research on nowcasting models,…

机器学习 · 计算机科学 2026-02-09 Changhoon Song , Teng Yuan Chang , Youngjoon Hong

Deploying models on target domain data subject to distribution shift requires adaptation. Test-time training (TTT) emerges as a solution to this adaptation under a realistic scenario where access to full source domain data is not available…

计算机视觉与模式识别 · 计算机科学 2022-10-17 Yongyi Su , Xun Xu , Kui Jia

Deploying models on target domain data subject to distribution shift requires adaptation. Test-time training (TTT) emerges as a solution to this adaptation under a realistic scenario where access to full source domain data is not available,…

机器学习 · 计算机科学 2023-03-21 Yongyi Su , Xun Xu , Tianrui Li , Kui Jia

Precipitation nowcasting based on radar echoes plays a crucial role in monitoring extreme weather and supporting disaster prevention. Although deep learning approaches have achieved significant progress, they still face notable limitations.…

机器学习 · 计算机科学 2025-10-28 Kaiyi Xu , Junchao Gong , Wenlong Zhang , Ben Fei , Lei Bai , Wanli Ouyang

Accurate prediction of the need for invasive mechanical ventilation (IMV) in intensive care units (ICUs) patients is crucial for timely interventions and resource allocation. However, variability in patient populations, clinical practices,…

机器学习 · 计算机科学 2026-01-28 Xiaolei Lu , Shamim Nemati

Modern learning systems excel at interpolation but struggle to generalize to unseen tasks outside the training distribution's support. This failure occurs even in simple settings, such as handling task parameters beyond the training range,…

机器学习 · 计算机科学 2026-05-29 Adam Ousherovitch , Yixin Wang

Reliable nowcasting of extreme precipitation remains difficult because convective systems are strongly nonlinear, multiscale, and nonstationary in 3D. Radar is the backbone of nowcasting, yet existing methods struggle to predict extremes:…

Natural disasters caused by heavy rainfall often cost huge loss of life and property. To avoid it, the task of precipitation nowcasting is imminent. To solve the problem, increasingly deep learning methods are proposed to forecast future…

机器学习 · 计算机科学 2021-10-05 Chuyao Luo , ZhengZhang , Rui Ye , Xutao Li , Yunming Ye

Weather radar data are critical for nowcasting and an integral component of numerical weather prediction models. While weather radar data provide valuable information at high resolution, their ground-based nature limits their availability,…

大气与海洋物理 · 物理学 2024-03-07 Çağlar Küçük , Apostolos Giannakos , Stefan Schneider , Alexander Jann

Precipitation nowcasting based on radar data plays a crucial role in extreme weather prediction and has broad implications for disaster management. Despite progresses have been made based on deep learning, two key challenges of…

机器学习 · 计算机科学 2024-02-08 Junchao Gong , Lei Bai , Peng Ye , Wanghan Xu , Na Liu , Jianhua Dai , Xiaokang Yang , Wanli Ouyang

Test-time adaptation (TTA) aims to improve model generalizability when test data diverges from training distribution, offering the distinct advantage of not requiring access to training data and processes, especially valuable in the context…

机器学习 · 计算机科学 2024-02-28 Yige Yuan , Bingbing Xu , Liang Hou , Fei Sun , Huawei Shen , Xueqi Cheng

In this paper, we study the application of Test-Time Training (TTT) as a solution to handling distribution shifts in speech applications. In particular, we introduce distribution-shifts to the test datasets of standard speech-classification…

声音 · 计算机科学 2023-10-02 Sri Harsha Dumpala , Chandramouli Sastry , Sageev Oore

Short-term rainfall forecasting, also known as precipitation nowcasting has become a potentially fundamental technology impacting significant real-world applications ranging from flight safety, rainstorm alerts to farm irrigation timings.…

神经与进化计算 · 计算机科学 2018-10-25 Maitreya Patel , Anery Patel , Dr. Ranendu Ghosh

Deep learning-based time series forecasting has dominated the short-term precipitation forecasting field with the help of its ability to estimate motion flow in high-resolution datasets. The growing interest in precipitation nowcasting…

机器学习 · 计算机科学 2024-06-17 Sojung An , Tae-Jin Oh , Eunha Sohn , Donghyun Kim