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We introduce a novel deep learning approach that harnesses the power of generative artificial intelligence to enhance the accuracy of contextual forecasting in sewerage systems. By developing a diffusion-based model that processes…

机器学习 · 计算机科学 2025-06-11 Nicholas A. Pearson , Francesca Cairoli , Luca Bortolussi , Davide Russo , Francesca Zanello

We propose a learning framework for calibrating predictive models to make loss-controlling prediction for exchangeable data, which extends our recently proposed conformal loss-controlling prediction for more general cases. By comparison,…

机器学习 · 计算机科学 2024-01-24 Di Wang , Junzhi Shi , Pingping Wang , Shuo Zhuang , Hongyue Li

This paper introduces a martingale that characterizes two properties of evolving forecast distributions. Ideal forecasts of a future event behave as martingales, sequen- tially updating the forecast to leverage the available information as…

机器学习 · 计算机科学 2021-05-17 Dean P. Foster , Robert A. Stine

We propose a physics-constrained machine learning method-based on reservoir computing- to time-accurately predict extreme events and long-term velocity statistics in a model of turbulent shear flow. The method leverages the strengths of two…

流体动力学 · 物理学 2021-04-14 Nguyen Anh Khoa Doan , Wolfgang Polifke , Luca Magri

The predict-then-optimize framework is fundamental in many practical settings: predict the unknown parameters of an optimization problem, and then solve the problem using the predicted values of the parameters. A natural loss function in…

机器学习 · 计算机科学 2022-08-03 Othman El Balghiti , Adam N. Elmachtoub , Paul Grigas , Ambuj Tewari

The sparse and spatio-temporally discontinuous nature of precipitation data presents significant challenges for simulation and statistical processing for bias correction and downscaling. These include incorrect representation of…

机器学习 · 计算机科学 2024-12-20 Gokul Radhakrishnan , Rahul Sundar , Nishant Parashar , Antoine Blanchard , Daiwei Wang , Boyko Dodov

The study of a machine learning problem is in many ways is difficult to separate from the study of the loss function being used. One avenue of inquiry has been to look at these loss functions in terms of their properties as scoring rules…

机器学习 · 计算机科学 2022-09-02 Zac Cranko , Robert C. Williamson , Richard Nock

Despite the importance of quantifying how the spatial patterns of extreme precipitation will change with warming, we lack tools to objectively analyze the storm-scale outputs of modern climate models. To address this gap, we develop an…

大气与海洋物理 · 物理学 2023-12-04 Griffin Mooers , Tom Beucler , Mike Pritchard , Stephan Mandt

Water managers in the western United States (U.S.) rely on longterm forecasts of temperature and precipitation to prepare for droughts and other wet weather extremes. To improve the accuracy of these longterm forecasts, the U.S. Bureau of…

应用统计 · 统计学 2019-05-23 Jessica Hwang , Paulo Orenstein , Judah Cohen , Karl Pfeiffer , Lester Mackey

The predict-then-optimize (PTO) framework is indispensable for addressing practical stochastic decision-making tasks. It consists of two crucial steps: initially predicting unknown parameters of an optimization model and subsequently…

系统与控制 · 电气工程与系统科学 2024-11-20 Jixian Liu , Tao Xu , Jianping He , Chongrong Fang

Precipitation nowcasting aims to forecast short-term radar echo sequences for extreme weather warning, where both prediction fidelity and inference efficiency are critical for real-world deployment. However, diffusion-based models, despite…

计算机视觉与模式识别 · 计算机科学 2026-05-12 Yufeng Zhu , Chunlei Shi , Yongchao Feng , Dan Niu

We study a generalization of the problem of online learning in adversarial linear contextual bandits by incorporating loss functions that belong to a reproducing kernel Hilbert space, which allows for a more flexible modeling of complex…

机器学习 · 统计学 2023-10-04 Gergely Neu , Julia Olkhovskaya , Sattar Vakili

Inverse problems use physical measurements along with a computational model to estimate the parameters or state of a system of interest. Errors in measurements and uncertainties in the computational model lead to inaccurate estimates. This…

数值分析 · 数学 2015-02-02 Vishwas Rao , Adrian Sandu

For Multivariate Time Series Forecasting (MTSF), recent deep learning applications show that univariate models frequently outperform multivariate ones. To address the difficiency in multivariate models, we introduce a method to Construct…

机器学习 · 统计学 2026-02-06 Jiecheng Lu , Xu Han , Yan Sun , Shihao Yang

Machine learning and deep learning methods have been widely explored in understanding the chaotic behavior of the atmosphere and furthering weather forecasting. There has been increasing interest from technology companies, government…

The regret bound of an optimization algorithms is one of the basic criteria for evaluating the performance of the given algorithm. By inspecting the differences between the regret bounds of traditional algorithms and adaptive one, we…

Forecasting meteorological variables is challenging due to the complexity of their processes, requiring advanced models for accuracy. Accurate precipitation forecasts are vital for society. Reliable predictions help communities mitigate…

Time series forecasting models have diverse real world applications (e.g., from electricity metrics to software workload). Latest foundational models trained for time series forecasting show strengths (e.g., for long sequences and in…

机器学习 · 计算机科学 2025-07-03 Keun Soo Yim

Distributionally Robust Optimization (DRO) provides a framework for decision-making under distributional uncertainty, yet its effectiveness can be compromised by outliers in the training data. This paper introduces a principled approach to…

机器学习 · 计算机科学 2025-11-04 Shuyao Li , Ilias Diakonikolas , Jelena Diakonikolas

Deep learning approaches have been widely adopted for precipitation nowcasting in recent years. Previous studies mainly focus on proposing new model architectures to improve pixel-wise metrics. However, they frequently result in blurry…

计算机视觉与模式识别 · 计算机科学 2024-10-31 Chiu-Wai Yan , Shi Quan Foo , Van Hoan Trinh , Dit-Yan Yeung , Ka-Hing Wong , Wai-Kin Wong