Results 31 to 40 of about 1,877 (198)

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

Proper orthogonal and dynamic mode decomposition of sunspot data [PDF]

open access: yes, 2021
High-resolution solar observations show the complex structure of the magnetohydrodynamic (MHD) wave motion. We apply the techniques of proper orthogonal decomposition (POD) and dynamic mode decomposition (DMD) to identify the dominant MHD wave modes in a
Brevis, W   +19 more
core   +1 more source

Image segmentation and separation of spectrally similar dyes in fluorescence microscopy by dynamic mode decomposition of photobleaching kinetics

open access: yesBMC Bioinformatics, 2022
Background Image segmentation in fluorescence microscopy is often based on spectral separation of fluorescent probes (color-based segmentation) or on significant intensity differences in individual image regions (intensity-based segmentation).
Daniel Wüstner
doaj   +1 more source

Bayesian Dynamic Mode Decomposition [PDF]

open access: yes, 2017
Dynamic mode decomposition (DMD) is a data-driven method for calculating a modal representation of a nonlinear dynamical system, and it has been utilized in various fields of science and engineering. In this paper, we propose Bayesian DMD, which provides
Yasuo Tabei   +3 more
core   +1 more source

Cutting Through the Noise: Extracting Dynamics from Ultrafast Spectra using Dynamic Mode Decomposition [PDF]

open access: yes, 2023
Coherent multidimensional spectroscopy provides experimental access to molecular structure and sub-picosecond dynamics in solution. Dynamics are typically inferred from the evolution of lineshapes over was a function of waiting time.
Cong, Xu, Carlos, Baiz
core   +1 more source

MC-DMD: A data-driven method for blood vessel enhancement in retinal images using morphological closing and dynamic mode decomposition

open access: yesJournal of King Saud University - Computer and Information Sciences, 2022
Detection of blood vessels in retinal images is an important step in any computer-aided pathological system for the early screening and detection of eye-related ailments such as retinal detachment, diabetic retinopathy, and macular degeneration. Propriety of the vessel enhancement process, as a pre-processing step, has been well established in medical ...
Suchithra Madathil   +1 more
openaire   +2 more sources

Extended Online DMD and Weighted Modifications for Streaming Data Analysis

open access: yesComputation, 2023
We present novel methods for computing the online dynamic mode decomposition (online DMD) for streaming datasets. We propose a framework that allows incremental updates to the DMD operator as data become available.
Gyurhan Nedzhibov
doaj   +1 more source

Online Dynamic Mode Decomposition Methods for the Investigation of Unsteady Aerodynamics of the DrivAer Model (First Report)

open access: yesInternational Journal of Automotive Engineering, 2018
It is believed that Dynamic Mode Decomposition (DMD) is a very useful method for the analysis of unsteady aerodynamics of road vehicles. However, it seems that the conventional DMD method is not practical regarding the application on the aerodynamic ...
Daiki Matsumoto   +3 more
doaj   +1 more source

Predicting behavior through dynamic modes in resting-state fMRI data

open access: yesNeuroImage, 2022
Dynamic properties of resting-state functional connectivity (FC) provide rich information on brain-behavior relationships. Dynamic mode decomposition (DMD) has been used as a method to characterize FC dynamics. However, it remains unclear whether dynamic
Shigeyuki Ikeda   +4 more
doaj   +1 more source

Investigating the Linear Dynamics of the Near-Field of a Turbulent High-Speed Jet Using Dual-Particle Image Velocimetry (PIV) and Dynamic Mode Decomposition (DMD)

open access: yesFluids, 2023
The quest for the physical mechanisms underlying turbulent high-speed jet flows is underpinned by the extraction of spatio-temporal coherent structures from their flow fields. Experimental measurements to enable data decomposition need to comprise time-resolved velocity fields with a high-spatial resolution—qualities which current particle image ...
Vishal Chaugule   +4 more
openaire   +2 more sources

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