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Plasma systems exhibit complex multiscale dynamics, resolving which poses significant challenges for conventional numerical simulations. Machine learning (ML) offers an alternative by learning data-driven representations of these dynamics.…

等离子体物理 · 物理学 2025-03-04 Farbod Faraji , Maryam Reza

In recent years, machine learning (ML) algorithms have been successfully employed in Astronomy for analyzing and interpreting the data collected from various surveys. The need for new robust and efficient data analysis tools in Astronomy is…

星系天体物理 · 物理学 2019-12-12 Muhammad Haider Abbas

The design and deployment of autonomous systems for space missions require robust solutions to navigate strict reliability constraints, extended operational duration, and communication challenges. This study evaluates the stability and…

机器人学 · 计算机科学 2025-03-04 Henry Lei , Zachary S. Lippay , Anonto Zaman , Joshua Aurand , Amin Maghareh , Sean Phillips

In a recent paper it was reported a planetary system around the star HD60532, composed by two giant planets in a possible 3:1 mean motion resonance, that should be confirmed within the next decade. Here we show that the analysis of the…

地球与行星天体物理 · 物理学 2009-11-13 J. Laskar , A. C. M. Correia

Determining the dynamics of the expectation values for operators acting on a quantum many-body (QMB) system is a challenging task. Matrix product states (MPS) have traditionally been the "go-to" models for these systems because calculating…

量子物理 · 物理学 2021-03-01 Justin Reyes , Sayandip Dhara , Eduardo R. Mucciolo

As rapidly growing AI computational demands accelerate the need for new hardware installation and maintenance, this work explores optimal data center resource management by balancing operational efficiency with fault tolerance through…

人工智能 · 计算机科学 2025-04-02 Chang-Lin Chen , Jiayu Chen , Tian Lan , Zhaoxia Zhao , Hongbo Dong , Vaneet Aggarwal

The hydrodynamic performance of a sea-going ship varies over its lifespan due to factors like marine fouling and the condition of the anti-fouling paint system. In order to accurately estimate the power demand and fuel consumption for a…

机器学习 · 统计学 2022-12-14 Prateek Gupta , Adil Rasheed , Sverre Steen

With the release of a large amount of astronomical data, an increasing number of close-in hot Jupiters have been discovered. Calculating their evolutionary curves using star-planet interaction models presents a challenge. To expedite the…

地球与行星天体物理 · 物理学 2024-08-30 Shuaishuai Guo , Jianheng Guo , KaiFan Ji , Hui Liu , Lei Xing

The Maslov index is a powerful tool for assessing the stability of solitary waves. Although it is difficult to calculate in general, a framework for doing so was recently established for singularly perturbed systems. In this paper, we apply…

动力系统 · 数学 2021-02-18 Paul Cornwell , Christopher K. R. T. Jones , Claire Kiers

Non-stationary environments are challenging for reinforcement learning algorithms. If the state transition and/or reward functions change based on latent factors, the agent is effectively tasked with optimizing a behavior that maximizes…

机器学习 · 计算机科学 2021-05-21 Lucas N. Alegre , Ana L. C. Bazzan , Bruno C. da Silva

Multistability is a phenomenon prevalent in many natural systems. In climate, for example, it allows the possibility of irreversible consequences on planetary scale as a result of climate change. Indeed, a climate ``tipping element'' is a…

大气与海洋物理 · 物理学 2026-04-14 George Datseris , Johannes Lohmann , Oisín Hamilton , Jacob Haqq-Misra

Developing a unified small-signal model for modern, large-scale power systems that remains accurate across a wide range of operating ranges presents a formidable challenge. Traditional methods, spanning mechanistic modeling, modal…

系统与控制 · 电气工程与系统科学 2025-08-26 Weicheng Liu , Di Liu , Songyan Zhang , Chao Lu

Simple mathematical models have been unable to predict the conditions leading to instabilities in a tuneable ring laser. Here, we propose a nonlinear iterative map model for tuneable ring lasers. Solving a reduced nonlinear Schr\"odinger…

光学 · 物理学 2021-09-01 Brady Metherall , C. Sean Bohun

The basic concept of multi-dimensional limiting process (MLP) on unstructured grids is inherited and modified for improving shock stabilities and reducing numerical dissipation on smooth regions. A relaxed version of MLP condition, simply…

数值分析 · 数学 2017-12-07 Fan Zhang , Jun Liu , Biaosong Chen

The paper develops a method for detecting optical binary stars based on the use of astrometric catalogs in combination with machine learning (ML) methods. A computational experiment was carried out on the example of the HIPPARCOS mission…

天体物理仪器与方法 · 物理学 2022-08-08 Mikhail V. Sazhin , Valerian Sementsov , Sergey Sorokin , Dan Lubarskiy , Alexander Raikov

This work primarily focuses on an operator inference methodology aimed at constructing low-dimensional dynamical models based on a priori hypotheses about their structure, often informed by established physics or expert insights. Stability…

机器学习 · 计算机科学 2024-03-04 Igor Pontes Duff , Pawan Goyal , Peter Benner

Robust Markov Decision Processes (MDPs) are a powerful framework for modeling sequential decision-making problems with model uncertainty. This paper proposes the first first-order framework for solving robust MDPs. Our algorithm interleaves…

最优化与控制 · 数学 2021-01-18 Julien Grand-Clément , Christian Kroer

To analyze nonlinear dynamic systems, we developed a new technique based on the square matrix method. We propose this technique called the \convergence map" for generating particle stability diagrams similar to the frequency maps widely…

加速器物理 · 物理学 2023-06-07 Li Hua Yu , Yoshiteru Hidaka , Victor Smaluk

Electrical grids are now much more complex due to the rapid integration of distributed generation and alternative energy sources, which makes forecasting grid stability with optimized control a crucial task for operators. Traditional…

系统与控制 · 电气工程与系统科学 2025-08-28 Kazi Sifatul Islam , Anandi Dutta , Shivani Mruthyunjaya

We present a hierarchical probabilistic model for improving geometric stellar distance estimates using color--magnitude information. This is achieved with a data driven model of the color--magnitude diagram, not relying on stellar models…

太阳与恒星天体物理 · 物理学 2017-11-29 Boris Leistedt , David W. Hogg
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