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This study presents a methodology focusing on the use of computational model and experimental data fusion to improve the Spalart-Allmaras (SA) closure model for Reynolds-averaged Navier-Stokes solutions. In particular, our goal is to…

流体动力学 · 物理学 2024-07-26 Deepinder Jot Singh Aulakh , Xiang Yang , Romit Maulik

The tuning of Advanced Driver Assistance Systems (ADAS) involves resolving trade-offs among several competing objectives, including operational safety, system responsiveness, energy usage, and passenger comfort. This work introduces a novel…

神经与进化计算 · 计算机科学 2026-02-18 Sanjai Pathak , Ashish Mani , Amlan Chatterjee

Dynamic voltage scaling (DVS) is one of the most effective techniques for reducing energy consumption in embedded and real-time systems. However, traditional DVS algorithms have inherent limitations on their capability in energy saving…

其他计算机科学 · 计算机科学 2008-09-30 Feng Xia , Longhua Ma , Wenhong Zhao , Youxian Sun , Jinxiang Dong

The deployment of unmanned aerial vehicles (UAVs) is proliferating as they are effective, flexible and cost-efficient devices for a variety of applications ranging from natural disaster recovery to delivery of goods. We investigate a…

信号处理 · 电气工程与系统科学 2019-09-30 Ali Rahmati , Seyyedali Hosseinalipour , Yavuz Yapici , Xiaofan He , Ismail Guvenc , Huaiyu Dai , Arupjyoti Bhuyan

A data-driven investigation of the flow around a high-rise building is performed combining heterogeneous experimental samples and RANS CFD. The coupling is performed using techniques based on the Ensemble Kalman Filter (EnKF), including…

流体动力学 · 物理学 2023-01-27 Lucas Villanueva , Miguel Martinez Valero , Anina Sarkic Glumac , Marcello Meldi

We apply two data assimilation (DA) methods, a smoother and a filter, and a model-free machine learning (ML) shallow network to forecast two weakly turbulent systems. We analyse the effect of the spatial sparsity of observations on accuracy…

流体动力学 · 物理学 2024-07-16 Vikrant Gupta , Yuanqing Chen , Minping Wan

Weather forecasting is a crucial yet highly challenging task. With the maturity of Artificial Intelligence (AI), the emergence of data-driven weather forecasting models has opened up a new paradigm for the development of weather forecasting…

大气与海洋物理 · 物理学 2024-05-21 Yi Xiao , Lei Bai , Wei Xue , Kang Chen , Tao Han , Wanli Ouyang

In this paper, a novel adaptive smooth disturbance observer-based fast finite-time adaptive backstepping control scheme is presented for the attitude tracking of the 3-DOF helicopter system subject to compound disturbances. First, an…

系统与控制 · 电气工程与系统科学 2022-05-26 Xidong Wang , Zhan Li , Xinghu Yu , Zhen He

Data assimilation, consisting in the combination of a dynamical model with a set of noisy and incomplete observations in order to infer the state of a system over time, involves uncertainty in most settings. Building upon an existing…

机器学习 · 计算机科学 2026-03-02 Anthony Frion , David S Greenberg

Active perception in uncertain environments requires robots to navigate safely while acquiring informative observations to reduce map uncertainty. These objectives inherently conflict, as informative viewpoints often lie near uncertain…

机器人学 · 计算机科学 2026-05-21 Amirhossein Mollaei Khass , Athanasios Cosse , Vivek Pandey , Nader Motee

In this work, we present an approach to supervisory reinforcement learning control for unmanned aerial vehicles (UAVs). UAVs are dynamic systems where control decisions in response to disturbances in the environment have to be made in the…

系统与控制 · 电气工程与系统科学 2023-05-23 Ibrahim Ahmed , Marcos Quinones-Grueiro , Gautam Biswas

Sensor fusion of camera, LiDAR, and 4-dimensional (4D) Radar has brought a significant performance improvement in autonomous driving. However, there still exist fundamental challenges: deeply coupled fusion methods assume continuous sensor…

计算机视觉与模式识别 · 计算机科学 2025-11-19 Dong-Hee Paek , Seung-Hyun Kong

Data assimilation is an iterative approach to the problem of estimating the state of a dynamical system using both current and past observations of the system together with a model for the system's time evolution. Rather than solving the…

数据分析、统计与概率 · 物理学 2007-05-23 Brian R. Hunt , Eric J. Kostelich , Istvan Szunyogh

In several applications such as databases, planning, and sensor networks, parameters such as selectivity, load, or sensed values are known only with some associated uncertainty. The performance of such a system (as captured by some…

数据结构与算法 · 计算机科学 2010-01-28 Sudipto Guha , Kamesh Munagala

Quadcopters, as unmanned aerial vehicles (UAVs), have great potential in civil applications such as surveying, building monitoring, and infrastructure condition assessment. Quadcopters, however, are relatively sensitive to noises and…

系统与控制 · 计算机科学 2019-01-04 Van Truong Hoang , Ansu Man Singh , Manh Duong Phung , Quang Ha

The visualization and detection of anomalies (outliers) are of crucial importance to many fields, particularly cybersecurity. Several approaches have been proposed in these fields, yet to the best of our knowledge, none of them has…

机器学习 · 计算机科学 2022-08-19 Waleed A. Yousef , Issa Traore , William Briguglio

Reliable control and state estimation of differential drive robots (DDR) operating in dynamic and uncertain environments remains a challenge, particularly when system dynamics are partially unknown and sensor measurements are prone to…

系统与控制 · 电气工程与系统科学 2026-03-17 Amos Alwala , Yuchen Hu , Gabriel da Silva Lima , Wallace Moreira Bessa

This paper proposes two practical implementations of Four-Dimensional Variational (4D-Var) Ensemble Kalman Filter (4D-EnKF) methods for non-linear data assimilation. Our formulations' main idea is to avoid the intrinsic need for adjoint…

应用统计 · 统计学 2023-05-05 Elias Nin-Ruiz , Jairo Diaz-Rodriguez

Automated inspection with Unmanned Aerial Systems (UASs) is a transformative capability set to revolutionize various application domains. However, this task is inherently complex, as it demands the seamless integration of perception,…

机器人学 · 计算机科学 2025-11-25 Savvas Papaioannou , Panayiotis Kolios , Christos G. Panayiotou , Marios M. Polycarpou

Extended time-delay auto-synchronization (ETDAS) is a promising technique for stabilizing unstable periodic orbits in low-dimensional dynamical systems. The technique involves continuous feedback of signals delayed by multiples of the…

chao-dyn · 物理学 2009-10-28 Michael E. Bleich , Joshua E. S. Socolar