Results 81 to 90 of about 53,281 (190)

Interval Uncertainty Analysis for Wheel–Rail Contact Load Identification Based on First-Order Polynomial Chaos Expansion

open access: yesMathematics
Traditional methods for identifying wheel–rail contact loads are based on deterministic models, in which the uncertainties such as material inhomogeneity and geometric tolerance are not considered. For wheel–rail contact load analysis with uncertainties,
Shengwen Yin, Haotian Xiao, Lei Cao
doaj   +1 more source

Computing derivative-based global sensitivity measures using polynomial chaos expansions [PDF]

open access: yes, 2014
In the field of computer experiments sensitivity analysis aims at quantifying the relative importance of each input parameter (or combinations thereof) of a computational model with respect to the model output uncertainty.
B. Sudret   +3 more
core  

Bayesian Adaptive Polynomial Chaos Expansions

open access: yes
Polynomial chaos expansions (PCE) are widely used for uncertainty quantification (UQ) tasks, particularly in the applied mathematics community. However, PCE has received comparatively less attention in the statistics literature, and fully Bayesian formulations remain rare, especially with implementations in R.
Rumsey, Kellin N.   +4 more
openaire   +2 more sources

Uncertainty quantification of grating filters via a Polynomial-Chaos method with a variance-adaptive design domain

open access: yesResults in Optics
In this work, we describe an algorithm based on Polynomial-Chaos (PC) expansions for the study of uncertainty quantification problems involving grating filters.
Aristeides D. Papadopoulos   +3 more
doaj   +1 more source

Multivariate Local Polynomial Regression with Application to Shenzhen Component Index

open access: yesDiscrete Dynamics in Nature and Society, 2011
This study attempts to characterize and predict stock index series in Shenzhen stock market using the concepts of multivariate local polynomial regression.
Liyun Su
doaj   +1 more source

Critères de raffinement pour le chaos polynomial multi-éléments. Application au pompage énergétique acoustique

open access: yes, 2015
National audienceCet article propose différentes solutions pour créer une partition adaptative de l'espace stochastique dans le cadre du chaos polynomial multi-éléments.
Chouvion, Benjamin, Sarrouy, Emmanuelle
core   +1 more source

Reliability-Based Design Optimization Applied to a Rotor Supported by Hydrodynamic Bearings

open access: yesMachines
Rotating machines are an important part of industrial equipment. It is essential to improve their performance while reducing the manufacturing, operating, and maintenance costs.
Helio Fiori de Castro   +2 more
doaj   +1 more source

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