23 citations · 31 across the 8 of their papers we have counts for
9 papers
Frustratingly Easy Uncertainty Estimation for Distribution Shift
Tiago Salvador, Vikram Voleti, Alexander Iannantuono +1
Distribution shift is an important concern in deep image classification, produced either by corruption of the source images, or a complete change, with the solution involving domai…
FairCal: Fairness Calibration for Face Verification
Tiago Salvador, Stephanie Cairns, Vikram Voleti +2
Despite being widely used, face recognition models suffer from bias: the probability of a false positive (incorrect face match) strongly depends on sensitive attributes such as the…
A Partial Differential Equation Obstacle Problem for the Level Set Approach to Visibility
Adam Oberman, Tiago Salvador
In this article we consider the problem of finding the visibility set from a given point when the obstacles are represented as the level set of a given function. Although the visib…
The Role of Surface Tension and Mobility Model in Simulations of Grain Growth
Tiago Salvador, Selim Esedoglu
We explore the effects of surface tension and mobility models in simulations of grain growth using threshold dynamics algorithms that allow performing large scale simulations, whil…
A simplified threshold dynamics algorithm for isotropic surface energies
Tiago Salvador, Selim Esedoglu
We present a simplified version of the threshold dynamics algorithm given in the work of Esedoglu and Otto (2015). The new version still allows specifying N-choose-2 possibly disti…
Higher-order Adaptive Finite Difference Methods for Fully Nonlinear Elliptic Equations
Brittany D. Froese, Tiago Salvador
We introduce generalised finite difference methods for solving fully nonlinear elliptic partial differential equations. Methods are based on piecewise Cartesian meshes augmented by…
Numerical methods for motion of level sets by affine curvature
Adam M. Oberman, Tiago Salvador
We study numerical methods for the nonlinear partial differential equation that governs the motion of level sets by affine curvature. We show that standard finite difference scheme…
Numerical Methods for the 2-Hessian Elliptic Partial Differential Equation
Brittany D. Froese, Adam M. Oberman, Tiago Salvador
The elliptic 2-Hessian equation is a fully nonlinear partial differential equation (PDE) that is related to intrinsic curvature for three dimensional manifolds. We introduce two nu…
Filtered schemes for Hamilton-Jacobi equations: a simple construction of convergent accurate difference schemes
Adam M. Oberman, Tiago Salvador
We build a simple and general class of finite difference schemes for first order Hamilton-Jacobi (HJ) Partial Differential Equations. These filtered schemes are convergent to the u…