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In recent years traditional numerical methods for accurate weather prediction have been increasingly challenged by deep learning methods. Numerous historical datasets used for short and medium-range weather forecasts are typically organized…

Machine Learning · Computer Science 2023-09-06 Andrea Asperti , Fabio Merizzi , Alberto Paparella , Giorgio Pedrazzi , Matteo Angelinelli , Stefano Colamonaco

Accurate Travel Time Estimation (TTE) is critical for ride-hailing platforms, where errors directly impact user experience and operational efficiency. While existing production systems excel at holistic route-level dependency modeling, they…

Machine Learning · Computer Science 2026-01-07 Wenzhao Jiang , Jindong Han , Ruiqian Han , Hao Liu

Fault detection is essential in complex industrial systems to prevent failures and optimize performance by distinguishing abnormal from normal operating conditions. With the growing availability of condition monitoring data, data-driven…

Applications · Statistics 2025-10-14 Han Sun , Olga Fink

Deep learning models have achieved remarkable progress in precipitation prediction. However, they still face significant challenges in accurately capturing spatial details of radar images, particularly in regions of high precipitation…

Computer Vision and Pattern Recognition · Computer Science 2025-03-26 Li Chaorong , Ling Xudong , Yang Qiang , Qin Fengqing , Huang Yuanyuan

Facial Action Units (AUs) detection is a cornerstone of objective facial expression analysis and a critical focus in affective computing. Despite its importance, AU detection faces significant challenges, such as the high cost of AU…

Computer Vision and Pattern Recognition · Computer Science 2025-04-01 Bohao Xing , Kaishen Yuan , Zitong Yu , Xin Liu , Heikki Kälviäinen

Operator learning for time-dependent partial differential equations (PDEs) has seen rapid progress in recent years, enabling efficient approximation of complex spatiotemporal dynamics. However, most existing methods rely on fixed time step…

Machine Learning · Computer Science 2025-10-07 Zhikai Wu , Sifan Wang , Shiyang Zhang , Sizhuang He , Min Zhu , Anran Jiao , Lu Lu , David van Dijk

While time series diffusion models have received considerable focus from many recent works, the performance of existing models remains highly unstable. Factors limiting time series diffusion models include insufficient time series datasets…

Machine Learning · Computer Science 2024-10-25 Jingwei Liu , Ling Yang , Hongyan Li , Shenda Hong

Language models (LMs) have shown impressive performance on tasks within their training distribution, but often struggle with structurally novel tasks even when given a small number of in-context task examples. We investigate the…

Artificial Intelligence · Computer Science 2025-03-26 Ekin Akyürek , Mehul Damani , Adam Zweiger , Linlu Qiu , Han Guo , Jyothish Pari , Yoon Kim , Jacob Andreas

Deep learning has significantly improved the accuracy of precipitation nowcasting. However, most existing multimodal models typically use simple channel concatenation or interpolation methods for data fusion, which often overlook the…

Machine Learning · Computer Science 2026-03-17 Henan Wang , Shengwu Xiong , Yifang Zhang , Wenjie Yin , Chen Zhou , Yuqiang Zhang , Pengfei Duan

Adaption of end-to-end speech recognition systems to new tasks is known to be challenging. A number of solutions have been proposed which apply external language models with various fusion methods, possibly with a combination of two-pass…

Computation and Language · Computer Science 2021-06-10 Janne Pylkkönen , Antti Ukkonen , Juho Kilpikoski , Samu Tamminen , Hannes Heikinheimo

Test-time adaptation aims to adapt to realistic environments in an online manner by learning during test time. Entropy minimization has emerged as a principal strategy for test-time adaptation due to its efficiency and adaptability.…

Computer Vision and Pattern Recognition · Computer Science 2025-05-23 Jisu Han , Jaemin Na , Wonjun Hwang

Precipitation Nowcasting, which aims to predict precipitation within the next 0 to 6 hours, is critical for disaster mitigation and real-time response planning. However, most time series forecasting benchmarks in meteorology are evaluated…

Machine Learning · Computer Science 2025-11-05 Yifang Zhang , Shengwu Xiong , Henan Wang , Wenjie Yin , Jiawang Peng , Yuqiang Zhang , Chen Zhou , Hua Chen , Qile Zhao , Pengfei Duan

This study examines the predictability of artificial intelligence (AI) models for weather prediction. Using a simple deep-learning architecture based on convolutional long short-term memory and the ERA5 data for training, we show that…

Atmospheric and Oceanic Physics · Physics 2024-10-07 Chanh Kieu

Spatio-temporal machine learning is critically needed for a variety of societal applications, such as agricultural monitoring, hydrological forecast, and traffic management. These applications greatly rely on regional features that…

Machine Learning · Computer Science 2023-03-09 Zhexiong Liu , Licheng Liu , Yiqun Xie , Zhenong Jin , Xiaowei Jia

Machine learning for wireless systems is commonly studied using standardized stochastic channel models (e.g., TDL/CDL/UMa) because of their legacy in wireless communication standardization and their ability to generate data at scale.…

Signal Processing · Electrical Eng. & Systems 2025-12-16 João Morais , Akshay Malhotra , Shahab Hamidi-Rad , Ahmed Alkhateeb

While linear-complexity attention mechanisms offer a promising alternative to Softmax attention for overcoming the quadratic bottleneck, training such models from scratch remains prohibitively expensive. Inheriting weights from pretrained…

Computer Vision and Pattern Recognition · Computer Science 2026-05-29 Yining Li , Dongchen Han , Zeyu Liu , Hanyi Wang , Yulin Wang , Gao Huang

We propose R2RAG-Flood, a training-free retrieval-augmented generation framework for flood damage nowcasting with reinforced reasoning. The framework builds a reasoning-centric knowledge base from labeled tabular records, where each sample…

Machine Learning · Computer Science 2026-04-23 Lipai Huang , Kai Yin , Chia-Fu Liu , Ali Mostafavi

We present a deep learning model for high-resolution probabilistic precipitation forecasting over an 8-hour horizon in Europe, overcoming the limitations of radar-only deep learning models with short forecast lead times. Our model…

Deep neural networks have demonstrated superior performance in short-term traffic forecasting. However, most existing traffic forecasting systems assume that the training and testing data are drawn from the same underlying distribution,…

Machine Learning · Computer Science 2021-12-01 Yichao Lu

We present the encoder-forecaster convolutional long short-term memory (LSTM) deep-learning model that powers Microsoft Weather's operational precipitation nowcasting product. This model takes as input a sequence of weather radar mosaics…