Rekodi ya ushahidi wa mbinu

Uncertainty Quantification

Uncertainty Quantification (UQ) is a computational framework for systematically measuring how uncertainty in the inputs of a model propagates into uncertainty in its outputs. Building on Wiener's polynomial chaos theory (1938) and formalised for general stochastic problems by Xiu and Karniadakis (2002), UQ uses two primary strategies: Polynomial Chaos Expansion (PCE), which represents the model output as a series of orthogonal polynomials matched to the input distributions, and Kriging (Gaussian process) surrogates, which replace an expensive simulation with a fast statistical approximation fitted to a small set of carefully chosen runs.

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Uncertainty Quantification (Polynomial Chaos Expansion and Kriging Surrogate)

Rekodi ya mbinu ya kiajenda · process-pipeline / simulation

Xiu, D. & Karniadakis, G.E. (2002). The Wiener-Askey Polynomial Chaos for Stochastic Differential Equations. SIAM Journal on Scientific Computing, 24(2), 619–644. · DOI 10.1137/S1064827501387826
Smith, R.C. (2013). Uncertainty Quantification: Theory, Implementation, and Applications. SIAM. · ISBN 978-1611973211

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