no code implementations • 25 Nov 2024 • Weilin Xu, Sebastian Szyller, Cory Cornelius, Luis Murillo Rojas, Marius Arvinte, Alvaro Velasquez, Jason Martin, Nageen Himayat
Adversarial examples in the digital domain against deep learning-based computer vision models allow for perturbations that are imperceptible to human eyes.
1 code implementation • 19 Nov 2024 • Asad Aali, Marius Arvinte, Sidharth Kumar, Yamin I. Arefeen, Jonathan I. Tamir
Specifically, employing denoised images rather than noisy counterparts when training DL networks results in lower normalized root mean squared error (NRMSE), higher structural similarity index measure (SSIM) and peak signal-to-noise ratio (PSNR) across different SNR levels, including 32dB, 22dB, and 12dB for T2-weighted brain data, and 24dB, 14dB, and 4dB for fat-suppressed knee data.
no code implementations • 13 May 2024 • Kevin Stangl, Marius Arvinte, Weilin Xu, Cory Cornelius
Zero-shot anomaly segmentation using pre-trained foundation models is a promising approach that enables effective algorithms without expensive, domain-specific training or fine-tuning.
no code implementations • 6 May 2024 • Ravikumar Balakrishnan, Marius Arvinte, Nageen Himayat, Hosein Nikopour, Hassnaa Moustafa
A comprehensive modeling of the security threats and the demonstration of adversarial attacks and defenses on practical AI based O-RAN systems is still in its nascent stages.
no code implementations • 10 Oct 2023 • Marius Arvinte, Cory Cornelius, Jason Martin, Nageen Himayat
Beyond their impressive sampling capabilities, score-based diffusion models offer a powerful analysis tool in the form of unbiased density estimation of a query sample under the training data distribution.
no code implementations • 2 May 2023 • Asad Aali, Marius Arvinte, Sidharth Kumar, Jonathan I. Tamir
We present SURE-Score: an approach for learning score-based generative models using training samples corrupted by additive Gaussian noise.
no code implementations • 21 Feb 2023 • Madhumitha Sakthi, Ahmed Tewfik, Marius Arvinte, Haris Vikalo
Automotive radar has increasingly attracted attention due to growing interest in autonomous driving technologies.
2 code implementations • 14 Apr 2022 • Marius Arvinte, Jonathan I Tamir
We introduce a framework for training score-based generative models for wireless MIMO channels and performing channel estimation based on posterior sampling at test time.
no code implementations • 8 Mar 2022 • Madhumitha Sakthi, Ahmed Tewfik, Marius Arvinte, Haris Vikalo
We show robust detection based on radar data reconstructed using 20% of samples under extreme weather conditions such as snow or fog, and on low-illuminated nights.
1 code implementation • 16 Nov 2021 • Marius Arvinte, Jonathan I Tamir
We train a score-based model on channel realizations from the CDL-D model for two antenna spacings and show that the approach leads to competitive in- and out-of-distribution performance when compared to generative adversarial network (GAN) and compressed sensing (CS) methods.
no code implementations • NeurIPS Workshop Deep_Invers 2021 • Ajil Jalal, Marius Arvinte, Giannis Daras, Eric Price, Alex Dimakis, Jonathan Tamir
The CSGM framework (Bora-Jalal-Price-Dimakis'17) has shown that deep generative priors can be powerful tools for solving inverse problems.
1 code implementation • 18 Oct 2021 • Marius Arvinte, Jonathan I. Tamir
Deep learning has been recently applied to physical layer processing in digital communication systems in order to improve end-to-end performance.
2 code implementations • NeurIPS 2021 • Ajil Jalal, Marius Arvinte, Giannis Daras, Eric Price, Alexandros G. Dimakis, Jonathan I. Tamir
The CSGM framework (Bora-Jalal-Price-Dimakis'17) has shown that deep generative priors can be powerful tools for solving inverse problems.
1 code implementation • 2 Mar 2021 • Marius Arvinte, Sriram Vishwanath, Ahmed H. Tewfik, Jonathan I. Tamir
Accelerated multi-coil magnetic resonance imaging reconstruction has seen a substantial recent improvement combining compressed sensing with deep learning.
no code implementations • 23 Dec 2020 • Marius Arvinte, Ahmed H. Tewfik, Sriram Vishwanath
In this work, we introduce EQ-Net: the first holistic framework that solves both the tasks of log-likelihood ratio (LLR) estimation and quantization using a data-driven method.
1 code implementation • 5 Jun 2020 • Marius Arvinte, Ahmed H. Tewfik, Sriram Vishwanath
Our architecture uses a contrastive loss termand a disentangled generative model to sample negative pairs.
1 code implementation • 28 Feb 2020 • Marius Arvinte, Ahmed Tewfik, Sriram Vishwanath
We introduce an adversarial sample detection algorithm based on image residuals, specifically designed to guard against patch-based attacks.
1 code implementation • 18 Jun 2019 • Marius Arvinte, Sriram Vishwanath, Ahmed H. Tewfik
In this work, a deep learning-based quantization scheme for log-likelihood ratio (L-value) storage is introduced.
1 code implementation • 11 Mar 2019 • Marius Arvinte, Ahmed H. Tewfik, Sriram Vishwanath
In this work, a deep learning-based method for log-likelihood ratio (LLR) lossy compression and quantization is proposed, with emphasis on a single-input single-output uncorrelated fading communication setting.