Application of value of information theory in adaptive metamodeling for reliability assessment

R. Teixeira, A. O'Connor, M. Nogal Macho

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

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Abstract

The present paper discusses the application principles of value of information theory in adaptive metamodeling for reliability analysis. Metamodeling for reliability purposes has become particularly relevant in recent years. The usage of metamodels allows surrogating the, costly to evaluate, performance functions of engineering structures. Adaptive Kriging procedures are examples of the successful application of metamodel- ing in reliability analysis. Efficient adaptive Kriging involves the usage of some notion of improvement in what ultimately is an unsupervised decision making scheme that selects points to enrich the model. Therefore, the decision to select a point to enrich the experimental design should consider the utility of each candidate in the expectation of improvement of the metamodeling accuracy. Within this context, a comprehensive discussion on the application of value of information for reliability metamodeling is presented. Since the candidate points and surrogate are jointly built in a virtually costless model, it is possible to know the virtual outcome of the enrich- ment decisions. In many circumstances, points in the experimental design may provide redundant information. Furthermore, a priori knowledge on the performance function may be applied to weight the expected outcome of exploration and exploitation. Value of information considerations adds value to reliability metamodeling that uses adaptive methods, and is of interest for efficient design and optimization of complex structures, such as bridge structures.
Original languageEnglish
Title of host publicationBridge Maintenance, Safety, Management, Life-Cycle Sustainability and Innovations
EditorsHiroshi Yokota, Dan M. Frangopol
Place of PublicationLondon
PublisherTaylor & Francis
Pages757-765
Number of pages9
ISBN (Electronic)9780429279119
ISBN (Print)9780367232788
DOIs
Publication statusPublished - 2021
Event10th International Conference on Bridge Maintenaince, Safety and Management, IABMAS 2020 - Sapporo, Japan
Duration: 11 Apr 202115 Apr 2021

Conference

Conference10th International Conference on Bridge Maintenaince, Safety and Management, IABMAS 2020
Country/TerritoryJapan
CitySapporo
Period11/04/2115/04/21

Bibliographical note

Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Keywords

  • Reliability Assessment
  • Metamodeling
  • Value of information

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