Search Results for author: Ahmed Abdelkader

Found 7 papers, 4 papers with code

The Intrinsic Dimension of Images and Its Impact on Learning

1 code implementation ICLR 2021 Phillip Pope, Chen Zhu, Ahmed Abdelkader, Micah Goldblum, Tom Goldstein

We find that common natural image datasets indeed have very low intrinsic dimension relative to the high number of pixels in the images.

Image Generation

Detection as Regression: Certified Object Detection by Median Smoothing

1 code implementation7 Jul 2020 Ping-Yeh Chiang, Michael J. Curry, Ahmed Abdelkader, Aounon Kumar, John Dickerson, Tom Goldstein

While adversarial training can improve the empirical robustness of image classifiers, a direct extension to object detection is very expensive.

object-detection Object Detection

Certified Defenses for Adversarial Patches

1 code implementation ICLR 2020 Ping-Yeh Chiang, Renkun Ni, Ahmed Abdelkader, Chen Zhu, Christoph Studer, Tom Goldstein

Adversarial patch attacks are among one of the most practical threat models against real-world computer vision systems.

VoroCrust: Voronoi Meshing Without Clipping

1 code implementation23 Feb 2019 Ahmed Abdelkader, Chandrajit L. Bajaj, Mohamed S. Ebeida, Ahmed H. Mahmoud, Scott A. Mitchell, John D. Owens, Ahmad A. Rushdi

The VoroCrust algorithm is the first provably-correct algorithm for conforming polyhedral Voronoi meshing for non-convex and non-manifold domains with guarantees on the quality of both surface and volume elements.

Graphics Computational Geometry I.3.5

On the Complexity of Slide-and-Merge Games

no code implementations15 Jan 2015 Ahmed Abdelkader, Aditya Acharya, Philip Dasler

We study the complexity of a particular class of board games, which we call `slide and merge' games.

Computational Complexity F.2.2

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