Results 1 to 10 of about 5,625,691 (189)

Preconditioned dynamic mode decomposition and mode selection algorithms for large datasets using incremental proper orthogonal decomposition

open access: yesAIP Advances, 2017
In this letter, we propose a simple and efficient framework of dynamic mode decomposition (DMD) and mode selection for large datasets. The proposed framework explicitly introduces a preconditioning step using an incremental proper orthogonal ...
Yuya Ohmichi
doaj   +2 more sources

On Alternative Algorithms for Computing Dynamic Mode Decomposition

open access: yesComputation, 2022
Dynamic mode decomposition (DMD) is a data-driven, modal decomposition technique that describes spatiotemporal features of high-dimensional dynamic data.
Gyurhan Nedzhibov
doaj   +2 more sources

Identification of Linear Time-Invariant Systems with Dynamic Mode Decomposition [PDF]

open access: yesMathematics, 2022
Dynamic mode decomposition (DMD) is a popular data-driven framework to extract linear dynamics from complex high-dimensional systems. In this work, we study the system identification properties of DMD.
Jan Heiland, Benjamin Unger
doaj   +2 more sources

Visualization and selection of Dynamic Mode Decomposition components for unsteady flow

open access: yesVisual Informatics, 2021
Dynamic Mode Decomposition (DMD) is a data-driven and model-free decomposition technique. It is suitable for revealing spatio-temporal features of both numerically and experimentally acquired data.
T. Krake   +4 more
doaj   +1 more source

Quantum Dynamic Mode Decomposition Algorithm for High-Dimensional Time Series Analysis

open access: yesIntelligent Computing, 2023
The dynamic mode decomposition (DMD) algorithm is a widely used factorization and dimensionality reduction technique in time series analysis. When analyzing high-dimensional time series, the DMD algorithm requires extremely large amounts of computational
Cheng Xue   +8 more
doaj   +1 more source

Fast model-based design of high performance permanent magnet machine for next generation electric propulsion for urban aerial vehicle application

open access: yesCES Transactions on Electrical Machines and Systems, 2021
Model order reduction (MOR) is considered as a good alternative to reduce the computational scale for electro-magnetic problems. The aim of this work is to introduce the use of dynamic mode decomposition (DMD) as a promising tool for MOR to analyze its ...
Sarbajit Paul, Junghwan Chang
doaj   +1 more source

Experimental Study of Dynamical Airfoil and Aerodynamic Prediction

open access: yesActuators, 2022
Dynamic stall is a critical limiting factor for airfoil aerodynamics and a challenging problem for active flow control. In this experimental study, dynamic stall was measured by high-frequency surface pressure tapes and pressure-sensitive paint (PSP ...
Zheyu Shi   +3 more
doaj   +1 more source

Internal Flow Structure of Torque Converter Analyzed with Dynamic Mode Decomposition under Steady Driving Condition

open access: yesInternational Journal of Automotive Engineering, 2020
The structure of the flow field inside a torque converter was quantitatively evaluated using dynamic mode decomposition (DMD). The input time series data in the interference region of the cascade blades were measured using particle image velocimetry (PIV)
Yasunori Kunisaki   +2 more
doaj   +1 more source

Comparison of the Atmospheric 200 hPa Jet’s Analyses between Proper Orthogonal Decomposition and Advanced Dynamic Mode Decomposition Method

open access: yesAdvances in Meteorology, 2020
In this paper, a frequently employed technique named the sparsity-promoting dynamic mode decomposition (SPDMD) is proposed to analyze the velocity fields of atmospheric motion.
Mei Gao   +5 more
doaj   +1 more source

Optimized Dynamic Mode Decomposition via Non-Convex Regularization and Multiscale Permutation Entropy

open access: yesEntropy, 2018
Dynamic mode decomposition (DMD) is essentially a hybrid algorithm based on mode decomposition and singular value decomposition, and it inevitably inherits the drawbacks of these two algorithms, including the selection strategy of truncated rank order ...
Zhang Dang   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy