Results 41 to 50 of about 287,879 (312)

Higher order dynamic mode decomposition beyond aerospace engineering

open access: yesResults in Engineering, 2023
It is a well known fact that fluid dynamics play a crucial rule in countless fields in scientific and industrial applications, including nature and medicine (ocean currents, fluid motion around jellyfish, blood circulation...), in energy production (wind
N. Groun   +4 more
doaj   +1 more source

Wireless Technology Identification Employing Dynamic Mode Decomposition Modeling

open access: yesIEEE Access, 2023
Significant growth in broadband wireless services, as well as ever-increasing demand on the spectrum caused by the Internet of Things (IoT) have overstretched limited available spectrum space for wireless services.
Ahmed Elsebaay, Hazem H. Refai
doaj   +1 more source

Nonlinear model order reduction via Dynamic Mode Decomposition [PDF]

open access: yes, 2016
We propose a new technique for obtaining reduced order models for nonlinear dynamical systems. Specifically, we advocate the use of the recently developed Dynamic Mode Decomposition (DMD), an equation-free method, to approximate the nonlinear term.
Alla, Alessandro, Kutz, J. Nathan
core   +2 more sources

Dynamic mode decomposition of the geomagnetic field over the last two decades

open access: yesEarth and Planetary Physics, 2023
Earth's magnetic field, which is generated in the liquid outer core through the dynamo action, undergoes changes on timescales of a few years to several million years, yet the underlying mechanisms responsible for the field variations remain to be ...
JuYuan Xu, YuFeng Lin
doaj   +1 more source

Dynamic mode decomposition of extreme events [PDF]

open access: yesNonlinear Processes in Geophysics
Most data-driven methods, among them Dynamic Mode Decomposition (DMD), focus on analysing and reconstructing the average behaviour of a system. However, the primary interest often lies in the anomalous behaviour, known as extreme events.
M. Ann, J. Behrens, J. Sillmann
doaj   +1 more source

Data-Driven modeling for Li-ion battery using dynamic mode decomposition

open access: yesAlexandria Engineering Journal, 2022
Lithium-ion (Li-ion) batteries are the workhorse of energy storage systems in electric vehicles (EVs) due to their high energy density and desirable characteristics.
Mohamed A. Abu-Seif   +4 more
doaj   +1 more source

Reduced-order modeling using Dynamic Mode Decomposition and Least Angle Regression

open access: yes, 2020
Dynamic Mode Decomposition (DMD) yields a linear, approximate model of a system's dynamics that is built from data. We seek to reduce the order of this model by identifying a reduced set of modes that best fit the output.
Graff, John   +3 more
core   +1 more source

High dynamic range spatial mode decomposition

open access: yesOptics Express, 2020
An accurate readout of low-power optical higher-order spatial modes is of increasing importance to the precision metrology community. Mode sensors are used to prevent mode mismatches from degrading quantum and thermal noise mitigation strategies. Direct mode analysis sensors (MODAN) are a promising technology for real-time monitoring of arbitrary ...
A. W. Jones   +3 more
openaire   +3 more sources

Machine learning enhanced Hankel dynamic-mode decomposition

open access: yesChaos: An Interdisciplinary Journal of Nonlinear Science, 2023
While the acquisition of time series has become more straightforward, developing dynamical models from time series is still a challenging and evolving problem domain. Within the last several years, to address this problem, there has been a merging of machine learning tools with what is called the dynamic-mode decomposition (DMD).
Christopher W. Curtis   +3 more
openaire   +3 more sources

Dynamic Mode Decomposition Based Video Shot Detection

open access: yesIEEE Access, 2018
Shot detection is widely used in video semantic analysis, video scene segmentation, and video retrieval. However, this is still a challenging task, due to the weak boundary and a sudden change in brightness or foreground objects.
Chongke Bi   +6 more
doaj   +1 more source

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