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O

Omar Ghattas

university of texas system

47H-index
258Paper Count
8.1KCitation Count
Published Papers 46
Publication Date
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Goal-Oriented Real-Time Bayesian Inference for Linear Autonomous Dynamical Systems With Application to Digital Twins for Tsunami Early Warning
errJournal of Computational Physics
IF3.8
err2026-01-14
err0
PREAI
errStefan Henneking; Sreeram Venkat; Omar Ghattas
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Resin percolation and intimate contact in fast processing of thermoplastic composites
errCOMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
IF8.9
err2024-07-01
err5
PREAI
errKirchhoff, Joseph; Ghattas, Omar; Tehrani, Mehran
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Volcanic arc rigidity variations illuminated by coseismic deformation of the 2011 Tohoku-oki M9
errSCIENCE ADVANCES
IF12.5
err2024-06-07
err1
errOAAI
errPuel, Simone; Becker, Thorsten W.; Villa, Umberto; Ghattas, Omar; Liu, Dunyu
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POINT SPREAD FUNCTION APPROXIMATION OF HIGH-RANK HESSIANS WITH LOCALLY SUPPORTED NONNEGATIVE INTEGRAL KERNELS
errSIAM JOURNAL ON SCIENTIFIC COMPUTING
IF2.6
err2024-05-13
err0
errOAAI
errAlger, Nick; Hartland, Tucker; Petra, Noemi; Ghattas, Omar
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Bayesian model calibration for block copolymer self-assembly: Likelihood-free inference and expected information gain computation via measure transport
errJOURNAL OF COMPUTATIONAL PHYSICS
IF3.8
err2024-04-01
err2
errOAAI
errBaptista, Ricardo; Cao, Lianghao; Chen, Joshua; Ghattas, Omar; Li, Fengyi; Marzouk, Youssef M.; Oden, J. Tinsley
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errSave
Derivative-Informed Neural Operator: An efficient framework for high-dimensional parametric derivative learning
errJOURNAL OF COMPUTATIONAL PHYSICS
IF3.8
err2024-01-01
err10
errOAAI
errO'Leary-Roseberry, Thomas; Chen, Peng; Villa, Umberto; Ghattas, Omar
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errSave
Bayesian model calibration for diblock copolymer thin film self-assembly using power spectrum of microscopy data and machine learning surrogate
errCOMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
IF7.3
err2023-12-01
err1
errOAAI
errCao, Lianghao; Wu, Keyi; Oden, J. Tinsley; Chen, Peng; Ghattas, Omar
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errSave
Residual-based error correction for neural operator accelerated infinite-dimensional Bayesian inverse problems
errJOURNAL OF COMPUTATIONAL PHYSICS
IF3.8
err2023-08-01
err12
errOAAI
errCao, Lianghao; O'Leary-Roseberry, Thomas; Jha, Prashant K.; Oden, J. Tinsley; Ghattas, Omar
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errSave
Optimal design of chemoepitaxial guideposts for the directed self-assembly of block copolymer systems using an inexact Newton algorithm
errJOURNAL OF COMPUTATIONAL PHYSICS
IF3.8
err2023-07-01
err4
errOAAI
errLuo, Dingcheng; Cao, Lianghao; Chen, Peng; Ghattas, Omar; Oden, Tinsley
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errSave
Derivative-informed projected neural networks for high-dimensional parametric maps governed by PDEs (vol 388, 114199, 2022)
errCOMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
IF7.3
err2023-01-01
err0
PREAI
errO'Leary-Roseberry, Thomas; Villa, Umberto; Chen, Peng; Ghattas, Omar
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errSave
Uncertainty quantification of geologic model parameters in 3D gravity inversion by Hessian-informed Markov chain Monte Carlo
errGEOPHYSICS
IF3.2
err2022-12-06
err8
PREAI
errLiang, Zhouji; Wellmann, Florian; Ghattas, Omar
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errSave
Learning high-dimensional parametric maps via reduced basis adaptive residual networks
errCOMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
IF7.3
err2022-12-01
err13
errOAAI
errO'Leary-Roseberry, Thomas; Du, Xiaosong; Chaudhuri, Anirban; Martins, Joaquim R. R. A.; Willcox, Karen; Ghattas, Omar
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errSave
Derivative-informed projected neural networks for high-dimensional parametric maps governed by PDEs
errCOMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
IF7.3
err2022-01-01
err34
errOAAI
errO'Leary-Roseberry, Thomas; Villa, Umberto; Chen, Peng; Ghattas, Omar
errShare
errSave
Bayesian inference of heterogeneous epidemic models: Application to COVID-19 spread accounting for long-term care facilities
errCOMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
IF7.3
err2021-11-01
err11
errOAAI
errChen, Peng; Wu, Keyi; Ghattas, Omar
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errSave
STEIN VARIATIONAL REDUCED BASIS BAYESIAN INVERSION
errSIAM JOURNAL ON SCIENTIFIC COMPUTING
IF2.6
err2021-03-25
err9
PREAI
errChen, Peng; Ghattas, Omar
errShare
errSave
TENSOR TRAIN CONSTRUCTION FROM TENSOR ACTIONS, WITH APPLICATION TO COMPRESSION OF LARGE HIGH ORDER DERIVATIVE TENSORS
errSIAM JOURNAL ON SCIENTIFIC COMPUTING
IF2.6
err2020-10-27
err11
errOAAI
errAlger, Nick; Chen, Peng; Ghattas, Omar
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errSave
HIERARCHICAL MATRIX APPROXIMATIONS OF HESSIANS ARISING IN INVERSE PROBLEMS GOVERNED BY PDEs
errSIAM JOURNAL ON SCIENTIFIC COMPUTING
IF2.6
err2020-10-22
err11
errOAAI
errAmbartsumyan, Ilona; Boukaram, Wajih; Bui-Thanh, Tan; Ghattas, Omar; Keyes, David; Stadler, Georg; Turkiyyah, George; Zampini, Stefano
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SCALABLE MATRIX-FREE ADAPTIVE PRODUCT-CONVOLUTION APPROXIMATION FOR LOCALLY TRANSLATION-INVARIANT OPERATORS
errSIAM JOURNAL ON SCIENTIFIC COMPUTING
IF2.6
err2019-07-23
err9
errOAAI
errAlger, Nick; Rao, Vishwas; Myers, Aaron; Tan Bui-Thanh; Ghattas, Omar
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errSave
A RANDOMIZED MAXIMUM A POSTERIORI METHOD FOR POSTERIOR SAMPLING OF HIGH DIMENSIONAL NONLINEAR BAYESIAN INVERSE PROBLEMS
errSIAM JOURNAL ON SCIENTIFIC COMPUTING
IF2.6
err2018-01-01
err40
PREAI
errWang, Kainan; Tan Bui-Thanh; Ghattas, Omar
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errSave
Hessian-based adaptive sparse quadrature for infinite-dimensional Bayesian inverse problems
errCOMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
IF7.3
err2017-12-01
err36
errOAAI
errChen, Peng; Villa, Umberto; Ghattas, Omar
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errSave

Research Directions

No research directions
Co-authors
Cooperation Journals
M
Michael Gurnis
H-index: 82 · Papers: 607
J
Joaquim R. R. A. Martins
H-index: 76 · Papers: 469
T
T. W. Becker
H-index: 69 · Papers: 478
S
Sergey Fomel
H-index: 67 · Papers: 538
J
J. Tinsley Oden
H-index: 64 · Papers: 363
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