3 citations · 6 across the 8 of their papers we have counts for
9 papers
Distribution-Agnostic Isocontour Confidence Bounds for Robust Uncertainty Visualization of Scalar Field Data
Timbwaoga A. J. Ouermi, Nina M. Gottschling, Alex Gorczowski +1
Uncertainty visualization has been shown to be pivotal for conveying the reliability of features extracted from scalar fields. Features represented by individual isocontours and me…
Efficient Probabilistic Visualization of Local Divergence of 2D Vector Fields with Independent Gaussian Uncertainty
Timbwaoga A. J. Ouermi, Eric Li, Kenneth Moreland +3
This work focuses on visualizing uncertainty of local divergence of two-dimensional vector fields. Divergence is one of the fundamental attributes of fluid flows, as it can help do…
Uncertainty Tube Visualization of Particle Trajectories
Jixian Li, Timbwaoga Aime Judicael Ouermi, Mengjiao Han +1
Predicting particle trajectories with neural networks (NNs) has substantially enhanced many scientific and engineering domains. However, effectively quantifying and visualizing the…
A Fast Iterative Robust Principal Component Analysis Method
Timbwaoga Aime Judicael Ouermi, Jixian Li, Chris R. Johnson
Principal Component Analysis (PCA) is widely used for dimensionality reduction and data analysis. However, PCA results are adversely affected by outliers often observed in real-wor…
Hyper-differential sensitivity analysis with respect to model discrepancy: Prior distributions
Joseph Hart, Bart van Bloemen Waanders, Jixian Li +2
Hyper-differential sensitivity analysis with respect to model discrepancy was recently developed to enable uncertainty quantification for optimization problems. The approach consis…
Estimation and Visualization of Isosurface Uncertainty from Linear and High-Order Interpolation Methods
Timbwaoga A. J. Ouermi, Jixian Li, Tushar Athawale +1
Isosurface visualization is fundamental for exploring and analyzing 3D volumetric data. Marching cubes (MC) algorithms with linear interpolation are commonly used for isosurface ex…
Glyph-Based Uncertainty Visualization and Analysis of Time-Varying Vector Fields
Timbwaoga A. J. Ouermi, Jixian Li, Zachary Morrow +2
Uncertainty is inherent to most data, including vector field data, yet it is often omitted in visualizations and representations. Effective uncertainty visualization can enhance th…
ENO-Based High-Order Data-Bounded and Constrained Positivity-Preserving Interpolation
Timbwaoga A. J. Ouermi, Robert M. Kirby, Martin Berzins
A number of key scientific computing applications that are based upon tensor-product grid constructions, such as numerical weather prediction (NWP) and combustion simulations, requ…
Numerical Testing of a New Positivity-Preserving Interpolation Algorithm
T. A. J. Ouermi, Robert M. Kirby, Martin Berzins
An important component of a number of computational modeling algorithms is an interpolation method that preserves the positivity of the function being interpolated. This report des…