Active Learning-Based Kriging Model with Noise Responses and Its Application to Reliability Analysis of Structures

This study introduces a reliability analysis methodology employing Kriging modeling enriched by a hybrid active learning process. Emphasizing noise integration into structural response predictions, this research presents a framework that combines Kriging modeling with regression to handle noisy data...

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Main Author: Junho Chun
Format: Article
Language:English
Published: MDPI AG 2024-01-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/14/2/882
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author Junho Chun
author_facet Junho Chun
author_sort Junho Chun
collection DOAJ
description This study introduces a reliability analysis methodology employing Kriging modeling enriched by a hybrid active learning process. Emphasizing noise integration into structural response predictions, this research presents a framework that combines Kriging modeling with regression to handle noisy data. The framework accommodates either constant variance of noise for all observed responses or varying, uncorrelated noise variances. Hyperparameters and the variance of the Kriging model with noisy data are determined through maximum likelihood estimation to address inherent uncertainties in structural predictions. An adaptive hybrid learning function guides design of experiment (DoE) point identification through an iterative enrichment process. This function strategically targets points near the limit-state approximation, farthest from existing training points, and explores candidate points to maximize the probability of misclassification. The framework’s application is demonstrated through metamodel-based reliability analysis for continuum and discrete structures with relatively large degrees of freedom, employing subset simulations. Numerical examples validate the framework’s effectiveness, highlighting its potential for accurate and efficient reliability assessments in complex structural systems.
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spelling doaj.art-cd256d4a775a41dd93ed2b4c9fb76f7f2024-01-29T13:45:35ZengMDPI AGApplied Sciences2076-34172024-01-0114288210.3390/app14020882Active Learning-Based Kriging Model with Noise Responses and Its Application to Reliability Analysis of StructuresJunho Chun0School of Architecture, Syracuse University, Syracuse, NY 13244, USAThis study introduces a reliability analysis methodology employing Kriging modeling enriched by a hybrid active learning process. Emphasizing noise integration into structural response predictions, this research presents a framework that combines Kriging modeling with regression to handle noisy data. The framework accommodates either constant variance of noise for all observed responses or varying, uncorrelated noise variances. Hyperparameters and the variance of the Kriging model with noisy data are determined through maximum likelihood estimation to address inherent uncertainties in structural predictions. An adaptive hybrid learning function guides design of experiment (DoE) point identification through an iterative enrichment process. This function strategically targets points near the limit-state approximation, farthest from existing training points, and explores candidate points to maximize the probability of misclassification. The framework’s application is demonstrated through metamodel-based reliability analysis for continuum and discrete structures with relatively large degrees of freedom, employing subset simulations. Numerical examples validate the framework’s effectiveness, highlighting its potential for accurate and efficient reliability assessments in complex structural systems.https://www.mdpi.com/2076-3417/14/2/882active learningKrigingreliability analysissurrogate modelsubset simulation
spellingShingle Junho Chun
Active Learning-Based Kriging Model with Noise Responses and Its Application to Reliability Analysis of Structures
Applied Sciences
active learning
Kriging
reliability analysis
surrogate model
subset simulation
title Active Learning-Based Kriging Model with Noise Responses and Its Application to Reliability Analysis of Structures
title_full Active Learning-Based Kriging Model with Noise Responses and Its Application to Reliability Analysis of Structures
title_fullStr Active Learning-Based Kriging Model with Noise Responses and Its Application to Reliability Analysis of Structures
title_full_unstemmed Active Learning-Based Kriging Model with Noise Responses and Its Application to Reliability Analysis of Structures
title_short Active Learning-Based Kriging Model with Noise Responses and Its Application to Reliability Analysis of Structures
title_sort active learning based kriging model with noise responses and its application to reliability analysis of structures
topic active learning
Kriging
reliability analysis
surrogate model
subset simulation
url https://www.mdpi.com/2076-3417/14/2/882
work_keys_str_mv AT junhochun activelearningbasedkrigingmodelwithnoiseresponsesanditsapplicationtoreliabilityanalysisofstructures