Results 11 to 20 of about 19,179,679 (309)

Model Order Reduction [PDF]

open access: yes, 2020
An increasing complexity of models used to predict real-world systems leads to the need for algorithms to replace complex models with far simpler ones, while preserving the accuracy of the predictions. This three-volume handbook covers methods as well as

core   +5 more sources

Impacts of Soil Freeze–Thaw Process and Snow Melting Over Tibetan Plateau on Asian Summer Monsoon System: A Review and Perspective

open access: yesFrontiers in Earth Science, 2020
Surface diabatic heating over the Tibetan Plateau (TP) is crucial for the onset and development of Asian summer monsoon (ASM), which is closely connected with the snow melting and freeze–thaw (SM-FT) processes in spring.
Chenghai Wang   +5 more
doaj   +1 more source

On Parameter Identification for Reaction-Dominated Pore-Scale Reactive Transport Using Modified Bee Colony Algorithm

open access: yesAlgorithms, 2021
Parameter identification is an important research topic with a variety of applications in industrial and environmental problems. Usually, a functional has to be minimized in conjunction with parameter identification; thus, there is a certain similarity ...
Vasiliy V. Grigoriev   +2 more
doaj   +1 more source

Dynamical reduction models [PDF]

open access: yesPhysics Reports, 2003
The report presents an exhaustive review of the recent attempt to overcome the difficulties that standard quantum mechanics meets in accounting for the measurement (or macro-objectification) problem, an attempt based on the consideration of nonlinear and stochastic modifications of the Schroedinger equation.
BASSI, ANGELO, GHIRARDI, GIANCARLO
openaire   +3 more sources

Randomized model order reduction [PDF]

open access: yesAdvances in Computational Mathematics, 2019
Singular value decomposition (SVD) has a crucial role in model order reduction. It is often utilized in the offline stage to compute basis functions that project the high-dimensional nonlinear problem into a low-dimensionsl model which is, then, evaluated cheaply. It constitutes a building block for many techniques such as e.g.
Alla A., Kutz J. N.
openaire   +2 more sources

Modeling and Perception of ‘Gesture Reduction’ [PDF]

open access: yesPhonetica, 2000
AbstractThe phenomenon of vowel reduction is investigated by modeling ‘gesture reduction’ with the use of the Distinctive Region Model (DRM). First, a definition is proposed for the term gesture, i.e. an acoustically efficient command aimed at deforming, in the time domain, the area function of the vocal tract.
René Carré, Pierre L. Divenyi
openaire   +2 more sources

Simulation Uncertainty of Near-Surface Wind Caused by Boundary Layer Parameterization Over the Complex Terrain

open access: yesFrontiers in Energy Research, 2020
Accurate prediction of near-surface wind based on numerical weather prediction models is essential to promote efficient wind energy harvesting. In this study, the performances of different Boundary Layer (BL) schemes in Weather Research and Forecasting ...
Luyuan Chen   +3 more
doaj   +1 more source

Data-Completion and Model Correction by Means of Evanescent Regularization

open access: yesApplied Sciences, 2023
System components are often regarded as part of a whole system, especially when it comes to data-driven modeling. Thus, subsystem modeling is disregarded in general when building a data-driven response, especially since multiple subsystem outputs are ...
Chady Ghnatios   +4 more
doaj   +1 more source

Multiscale Model Reduction of the Unsaturated Flow Problem in Heterogeneous Porous Media with Rough Surface Topography

open access: yesMathematics, 2020
In this paper, we consider unsaturated filtration in heterogeneous porous media with rough surface topography. The surface topography plays an important role in determining the flow process and includes multiscale features.
Denis Spiridonov   +4 more
doaj   +1 more source

A two-state hysteresis model from high-dimensional friction [PDF]

open access: yesRoyal Society Open Science, 2015
In prior work (Biswas & Chatterjee 2014 Proc. R. Soc. A 470, 20130817 (doi:10.1098/rspa.2013.0817)), we developed a six-state hysteresis model from a high-dimensional frictional system.
Saurabh Biswas, Anindya Chatterjee
doaj   +1 more source

Home - About - Disclaimer - Privacy