Global sensitivity metrics from active subspaces

PG Constantine, P Diaz - Reliability Engineering & System Safety, 2017 - Elsevier
Predictions from science and engineering models depend on several input parameters.
Global sensitivity analysis quantifies the importance of each input parameter, which can lead …

AeroVR: An immersive visualisation system for aerospace design and digital twinning in virtual reality

SK Tadeja, P Seshadri, PO Kristensson - The Aeronautical Journal, 2020 - cambridge.org
One of today's most propitious immersive technologies is virtual reality (VR). This term is
colloquially associated with headsets that transport users to a bespoke, built-for-purpose …

Generalization bounds for sparse random feature expansions

A Hashemi, H Schaeffer, R Shi, U Topcu, G Tran… - Applied and …, 2023 - Elsevier
Random feature methods have been successful in various machine learning tasks, are easy
to compute, and come with theoretical accuracy bounds. They serve as an alternative …

An adaptive data-driven subspace polynomial dimensional decomposition for high-dimensional uncertainty quantification based on maximum entropy method and …

W He, G Li, Y Zeng, Y Wang, C Zhong - Structural Safety, 2024 - Elsevier
Polynomial dimensional decomposition (PDD) is a surrogate method originated from the
ANOVA (analysis of variance) decomposition, and has shown powerful performance in …

Data-driven dimensional analysis of critical heat flux in subcooled vertical flow: A two-stage machine learning approach

K Yang, Z Liang, B Xu, Z Hou, H Wang - Applied Thermal Engineering, 2024 - Elsevier
This study presents a novel two-stage machine learning algorithm that identifies dominant
dimensionless numbers for critical heat flux (CHF) prediction, circumventing the limitations of …

Dimension reduction in heterogeneous parametric spaces with application to naval engineering shape design problems

M Tezzele, F Salmoiraghi, A Mola, G Rozza - Advanced Modeling and …, 2018 - Springer
We present the results of the first application in the naval architecture field of a methodology
based on active subspaces properties for parameter space reduction. The physical problem …

Combined parameter and model reduction of cardiovascular problems by means of active subspaces and POD-Galerkin methods

M Tezzele, F Ballarin, G Rozza - Mathematical and numerical modeling of …, 2018 - Springer
In this chapter we introduce a combined parameter and model reduction methodology and
present its application to the efficient numerical estimation of a pressure drop in a set of …

Manifold learning for parameter reduction

A Holiday, M Kooshkbaghi, JM Bello-Rivas… - Journal of computational …, 2019 - Elsevier
Large scale dynamical systems (eg many nonlinear coupled differential equations) can often
be summarized in terms of only a few state variables (a few equations), a trait that reduces …

Data-driven polynomial ridge approximation using variable projection

JM Hokanson, PG Constantine - SIAM Journal on Scientific Computing, 2018 - SIAM
Inexpensive surrogates are useful for reducing the cost of science and engineering studies
involving large-scale, complex computational models with many input parameters. A ridge …

An integrated data-driven computational pipeline with model order reduction for industrial and applied mathematics

M Tezzele, N Demo, A Mola, G Rozza - Novel mathematics inspired by …, 2022 - Springer
In this work we present an integrated computational pipeline involving several model order
reduction techniques for industrial and applied mathematics, as emerging technology for …