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A systematic approach to model validation based on Bayesian updates and prediction related rejection criteria
KTH, Skolan för datavetenskap och kommunikation (CSC), Numerisk analys, NA.
2008 (Engelska)Ingår i: Computer Methods in Applied Mechanics and Engineering, ISSN 0045-7825, E-ISSN 1879-2138, Vol. 197, nr 29-32, s. 2517-2539Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

This work describes a solution to the validation challenge problem posed at the SANDIA Validation Challenge Workshop, May 21-23, 2006, NM. It presents and applies a general methodology to it. The solution entails several standard steps, namely selecting and fitting several models to the available prior information and then sequentially rejecting those which do not perform satisfactorily in the validation and accreditation experiments. The rejection procedures are based on Bayesian updates, where the prior density is related to the current candidate model and the posterior density is obtained by conditioning on the validation and accreditation experiments. The result of the analysis is the computation of the failure probability as well as a quantification of the confidence in the computation, depending on the amount of available experimental data.

Ort, förlag, år, upplaga, sidor
2008. Vol. 197, nr 29-32, s. 2517-2539
Nyckelord [en]
model validation, uncertainty quantification, Bayesian updates, failure probability
Nationell ämneskategori
Beräkningsmatematik
Identifikatorer
URN: urn:nbn:se:kth:diva-38352DOI: 10.1016/j.cma.2007.08.031ISI: 000256856000015Scopus ID: 2-s2.0-43049156580OAI: oai:DiVA.org:kth-38352DiVA, id: diva2:437007
Anmärkning
Validation Methodology Workshop Location: Albuquerque, NM Date: MAY 22-23, 2006 Tillgänglig från: 2011-08-26 Skapad: 2011-08-25 Senast uppdaterad: 2017-12-08Bibliografiskt granskad

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Tempone, Raul
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Numerisk analys, NA
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