Estimation of trend and random components of conditional random field using Gaussian process regression

I Yoshida, Y Tomizawa, Y Otake - Computers and Geotechnics, 2021 - Elsevier
A method is proposed for simultaneously estimating the trend and random component of soil
properties at arbitrary locations using Gaussian process regression with the superposition of …

Optimization of site investigation program for reliability assessment of undrained slope using Spearman rank correlation coefficient

L Zhang, L Wang - Computers and Geotechnics, 2023 - Elsevier
Site investigation programs (eg, boreholes) are crucial in characterizing soil properties and
stratigraphic configurations. However, the traditional borehole patterns are generally of …

[HTML][HTML] Joint estimation of PM2. 5 and O3 over China using a knowledge-informed neural network

T Li, Q Yang, Y Wang, J Wu - Geoscience Frontiers, 2023 - Elsevier
China has currently entered a critical stage of coordinated control of fine particulate matter
(PM 2.5) and ozone (O 3), it is thus of tremendous value to accurately acquire high …

Quasi-site-specific multivariate probability distribution model for sparse, incomplete, and three-dimensional spatially varying soil data

J Ching, KK Phoon, Z Yang… - Georisk: Assessment and …, 2022 - Taylor & Francis
In a previous work, the first two authors proposed a data-driven method that can construct a
site-specific multivariate probability density function model for soil properties using sparse …

CPT-based probabilistic liquefaction assessment considering soil spatial variability, interpolation uncertainty and model uncertainty

Z Guan, Y Wang - Computers and Geotechnics, 2022 - Elsevier
In engineering practice, simplified procedure based on cone penetration test (CPT) results is
widely used for evaluating soil liquefaction potential. Since the CPT-based simplified …

Data-driven simulation of two-dimensional cross-correlated random fields from limited measurements using joint sparse representation

Z Guan, Y Wang - Reliability Engineering & System Safety, 2023 - Elsevier
Cross-correlated random fields are an essential tool for simultaneously modeling both auto-
and cross-correlation structures of spatial or temporal quantities in stochastic analysis of …

Fast stratification of geological cross-section from CPT results with missing data using multitask and modified Bayesian compressive sensing

T Zhao, Y Wang, SF Lu, L Xu - Canadian Geotechnical Journal, 2023 - cdnsciencepub.com
Since cone penetration test (CPT) is reasonably rapid, affordable, and repeatable, it has
been widely used in situ for subsurface soil stratification and classification in geological and …

[HTML][HTML] An improved BUS approach for Bayesian inverse analysis of soil parameters incorporating extensive field data

X Liu, G Ma, M Rezania, X Li, SH Jiang - Computers and Geotechnics, 2024 - Elsevier
This study addresses the complexities encountered when integrating site-specific field data
into the Bayesian inverse analysis of soil parameters in geotechnical structures. Traditional …

A decomposed Karhunen–Loève expansion scheme for the discretization of multidimensional random fields in geotechnical variability analysis

B Zhu, T Hiraishi - Stochastic Environmental Research and Risk …, 2024 - Springer
The efficient discretization of a multidimensional random field with high definition and large
geometric size remains a significant challenge. Compared with the simulation of one …

Efficient simulation of multivariate three-dimensional cross-correlated random fields conditioning on non-lattice measurement data

Z Yang, X Li, X Qi - Computer Methods in Applied Mechanics and …, 2022 - Elsevier
It is challenging to simulate large-scale or fine-resolution multivariate three-dimensional
(3D) cross-correlated conditional random fields because of computational issues such as …