Finding patterns in subsurface using Bayesian machine learning approach

Stochastic simulation approaches and uncertainty quantification are usually adopted for gaining insight into variability in soil stratigraphy configurations. Previous investigations at geotechnical site characterization and interpretation can be broadly categorized into geostatistics- and process-ba...

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Main Author: Hui Wang
Format: Article
Language:English
Published: KeAi Communications Co., Ltd. 2020-03-01
Series:Underground Space
Online Access:http://www.sciencedirect.com/science/article/pii/S2467967418301405
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author Hui Wang
author_facet Hui Wang
author_sort Hui Wang
collection DOAJ
description Stochastic simulation approaches and uncertainty quantification are usually adopted for gaining insight into variability in soil stratigraphy configurations. Previous investigations at geotechnical site characterization and interpretation can be broadly categorized into geostatistics- and process-based methods. On the other hand, modern site exploration techniques provide high-quality, dense datasets in physical spaces with high resolution, either directly from sensors (for example, cone penetration testing data) or indirectly from geophysical inversion (such as seismic inversion, electromagnetic induction inversion, and ground penetrating radar). In this work, anisotropy and heterogeneity are considered as possible patterns that inherently exist in the observations, and these are inferred and described in a Bayesian manner. To this end, a Bayesian machine learning approach is employed to extract these patterns from the original or interpreted data. The patterns are divided into two parts: spatial and statistical patterns. These patterns are considered as the “hidden link” among multiple spatial datasets. The proposed modeling method is demonstrated using a real-world, one-dimensional example as well as two two-dimensional numerical examples. It is revealed that the proposed clustering approach is a promising tool for subsurface modeling and pattern extraction. Keywords: Subsurface modeling, Pattern extraction, Machine learning, Bayesian, Random field
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spelling doaj.art-52bf68d2f6504433a93cfd13ff3a25612023-09-03T00:09:19ZengKeAi Communications Co., Ltd.Underground Space2467-96742020-03-01518492Finding patterns in subsurface using Bayesian machine learning approachHui Wang0Department of Civil and Environmental Engineering and Engineering Mechanics, University of Dayton, Dayton, OH 45469-0243, United StatesStochastic simulation approaches and uncertainty quantification are usually adopted for gaining insight into variability in soil stratigraphy configurations. Previous investigations at geotechnical site characterization and interpretation can be broadly categorized into geostatistics- and process-based methods. On the other hand, modern site exploration techniques provide high-quality, dense datasets in physical spaces with high resolution, either directly from sensors (for example, cone penetration testing data) or indirectly from geophysical inversion (such as seismic inversion, electromagnetic induction inversion, and ground penetrating radar). In this work, anisotropy and heterogeneity are considered as possible patterns that inherently exist in the observations, and these are inferred and described in a Bayesian manner. To this end, a Bayesian machine learning approach is employed to extract these patterns from the original or interpreted data. The patterns are divided into two parts: spatial and statistical patterns. These patterns are considered as the “hidden link” among multiple spatial datasets. The proposed modeling method is demonstrated using a real-world, one-dimensional example as well as two two-dimensional numerical examples. It is revealed that the proposed clustering approach is a promising tool for subsurface modeling and pattern extraction. Keywords: Subsurface modeling, Pattern extraction, Machine learning, Bayesian, Random fieldhttp://www.sciencedirect.com/science/article/pii/S2467967418301405
spellingShingle Hui Wang
Finding patterns in subsurface using Bayesian machine learning approach
Underground Space
title Finding patterns in subsurface using Bayesian machine learning approach
title_full Finding patterns in subsurface using Bayesian machine learning approach
title_fullStr Finding patterns in subsurface using Bayesian machine learning approach
title_full_unstemmed Finding patterns in subsurface using Bayesian machine learning approach
title_short Finding patterns in subsurface using Bayesian machine learning approach
title_sort finding patterns in subsurface using bayesian machine learning approach
url http://www.sciencedirect.com/science/article/pii/S2467967418301405
work_keys_str_mv AT huiwang findingpatternsinsubsurfaceusingbayesianmachinelearningapproach