Search Results for author: Soorya Gopalakrishnan

Found 6 papers, 5 papers with code

Wireless Fingerprinting via Deep Learning: The Impact of Confounding Factors

1 code implementation25 Feb 2020 Metehan Cekic, Soorya Gopalakrishnan, Upamanyu Madhow

The opportunity for doing so arises due to subtle nonlinear variations across transmitters, even those made by the same manufacturer.

Polarizing Front Ends for Robust CNNs

1 code implementation22 Feb 2020 Can Bakiskan, Soorya Gopalakrishnan, Metehan Cekic, Upamanyu Madhow, Ramtin Pedarsani

The vulnerability of deep neural networks to small, adversarially designed perturbations can be attributed to their "excessive linearity."

Robust Wireless Fingerprinting via Complex-Valued Neural Networks

no code implementations19 May 2019 Soorya Gopalakrishnan, Metehan Cekic, Upamanyu Madhow

A "wireless fingerprint" which exploits hardware imperfections unique to each device is a potentially powerful tool for wireless security.

Robust Adversarial Learning via Sparsifying Front Ends

1 code implementation24 Oct 2018 Soorya Gopalakrishnan, Zhinus Marzi, Metehan Cekic, Upamanyu Madhow, Ramtin Pedarsani

We also devise attacks based on the locally linear model that outperform the well-known FGSM attack.

Combating Adversarial Attacks Using Sparse Representations

3 code implementations11 Mar 2018 Soorya Gopalakrishnan, Zhinus Marzi, Upamanyu Madhow, Ramtin Pedarsani

It is by now well-known that small adversarial perturbations can induce classification errors in deep neural networks (DNNs).

General Classification

Sparsity-based Defense against Adversarial Attacks on Linear Classifiers

3 code implementations15 Jan 2018 Zhinus Marzi, Soorya Gopalakrishnan, Upamanyu Madhow, Ramtin Pedarsani

In this paper, we study this phenomenon in the setting of a linear classifier, and show that it is possible to exploit sparsity in natural data to combat $\ell_{\infty}$-bounded adversarial perturbations.

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