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A baroclinic model for the atmospheric jet at middle-latitudes is used as stochastic generator of non-stationary time series of the total energy of the system. A linear time trend is imposed on the parameter $T_E$, descriptive of the forced…

大气与海洋物理 · 物理学 2009-11-13 Mara Felici , Valerio Lucarini , Antonio Speranza , Renato Vitolo

Imaging in radioastronomy is an ill-posed inverse problem. Particularly the Event Horizon Telescope (EHT) Collaboration investigated the fidelity of their image reconstructions convincingly by large surveys solving the problem with…

天体物理仪器与方法 · 物理学 2023-07-05 Hendrik Müller , Alejandro Mus , Andrei Lobanov

Inspired by the similarity of the atmosphere-ocean physical coupling mechanism, this study innovatively migrates meteorological large-model techniques to the ocean domain, constructing the KunPeng global ocean environmental prediction…

机器学习 · 计算机科学 2025-04-08 Yi Zhao , Jiaqi Li , Haitao Xia , Tianjiao Zhang , Zerong Zeng , Tianyu Ren , Yucheng Zhang , Chao Zhu , Shengtong Xu , Hongchun Yuan

Mechanistic induced polarization (IP) models describe the relationships between the intrinsic properties of geomaterials and their frequency-dependent complex conductivity spectra. However, the uncertainties associated with estimating…

地球物理 · 物理学 2024-02-14 Charles L. Bérubé , Frédérique Baron

Vectorial Genetic Programming (Vec-GP) extends GP by allowing vectors as input features along regular, scalar features, using them by applying arithmetic operations component-wise or aggregating vectors into scalars by some aggregation…

神经与进化计算 · 计算机科学 2023-03-07 Philipp Fleck , Stephan Winkler , Michael Kommenda , Michael Affenzeller

Training robust supervised deep learning models for many geospatial applications of computer vision is difficult due to dearth of class-balanced and diverse training data. Conversely, obtaining enough training data for many applications is…

计算机视觉与模式识别 · 计算机科学 2020-12-09 Xuerong Xiao , Swetava Ganguli , Vipul Pandey

Accurate electricity demand forecasting is challenging due to the strong multi-periodicity of real-world demand series, which makes effective modeling of recurrent temporal patterns crucial. Decomposition techniques make such structure…

机器学习 · 计算机科学 2026-03-03 Weibin Feng , Ran Tao , John Cartlidge , Jin Zheng

This paper proposes an extension to conventional regression Neural Networks (NNs) for replacing the point predictions they produce with prediction intervals that satisfy a required level of confidence. Our approach follows a novel machine…

机器学习 · 计算机科学 2023-12-18 Harris Papadopoulos , Haris Haralambous

The ability to generate physically plausible ensembles of variable sources is critical to the optimization of time-domain survey cadences and the training of classification models on datasets with few to no labels. Traditional data…

天体物理仪器与方法 · 物理学 2020-05-19 Jorge Martínez-Palomera , Joshua S. Bloom , Ellianna S. Abrahams

Evolutionary algorithms based on modeling the statistical dependencies (interactions) between the variables have been proposed to solve a wide range of complex problems. These algorithms learn and sample probabilistic graphical models able…

神经与进化计算 · 计算机科学 2015-11-19 Murilo Zangari de Souza , Roberto Santana , Aurora Trinidad Ramirez Pozo , Alexander Mendiburu

Time series forecasting represents a significant and challenging task across various fields. Recently, methods based on mode decomposition have dominated the forecasting of complex time series because of the advantages of capturing local…

统计方法学 · 统计学 2023-11-30 Zhengtao Gui , Haoyuan Li , Sijie Xu , Yu Chen

The unit commitment (UC) problem is a nonlinear, high-dimensional, highly constrained, mixed-integer power system optimization problem and is generally solved in the literature considering minimizing the system operation cost as the only…

神经与进化计算 · 计算机科学 2014-10-24 Anupam Trivedi , Kunal Pal , Chiranjib Saha , Dipti Srinivasan

Visuomotor control (VMC) is an effective means of achieving basic manipulation tasks such as pushing or pick-and-place from raw images. Conditioning VMC on desired goal states is a promising way of achieving versatile skill primitives.…

机器人学 · 计算机科学 2021-09-27 Oliver Groth , Chia-Man Hung , Andrea Vedaldi , Ingmar Posner

This work examines the distributed optimal control of generalized Oseen equations with non-constant viscosity. We propose and analyze a new conforming augmented mixed finite element method and a Discontinuous Galerkin (DG) method for the…

数值分析 · 数学 2025-08-18 Harpal Singh , Arbaz Khan

A purposely built deep learning algorithm for the Verification of Earth-System ParametERisation (VESPER) is used to assess recent upgrades of the global physiographic datasets underpinning the quality of the Integrated Forecasting System…

大气与海洋物理 · 物理学 2023-10-25 Tom Kimpson , Margarita Choulga , Matthew Chantry , Gianpaolo Balsamo , Souhail Boussetta , Peter Dueben , Tim Palmer

In Very Long Baseline Interferometry (VLBI), signals from multiple antennas combine to create a sparsely sampled virtual aperture, its effective diameter determined by the largest antenna separation. The inherent sparsity makes VLBI imaging…

天体物理仪器与方法 · 物理学 2024-01-25 Alejandro Mus , Hendrik Müller , Ivan Martí-Vidal , Andrei Lobanov

Physics phenomena are often described by ordinary and/or partial differential equations (ODEs/PDEs), and solved analytically or numerically. Unfortunately, many real-world systems are described only approximately with missing or unknown…

机器学习 · 统计学 2025-06-30 Gurjeet Sangra Singh , Maciej Falkiewicz , Alexandros Kalousis

Dynamic total body positron emission tomography (TB-PET) makes it feasible to measure the kinetics of all organs in the body simultaneously which may lead to important applications in multi-organ disease and systems physiology. Since…

医学物理 · 物理学 2026-01-14 Yun Zhao , Qinlin Gu , Georgios I. Angelis , Andrew J. Reader , Yanan Fan , Steven R. Meikle

The Model Predictive Control (MPC) approach is used in this paper to control the voltage profiles in MV networks with distributed generation. The proposed algorithm lies at the intermediate level of a three-layer hierarchical structure. At…

系统与控制 · 计算机科学 2013-11-15 Marcello Farina , Antonio Guagliardi , Federico Mariani , Carlo Sandroni , Riccardo Scattolini

Vector quantization (VQ) transforms continuous image features into discrete representations, providing compressed, tokenized inputs for generative models. However, VQ-based frameworks suffer from several issues, such as non-smooth latent…

计算机视觉与模式识别 · 计算机科学 2025-11-11 Sicheng Yang , Xing Hu , Qiang Wu , Dawei Yang