Search Results for author: Bhagyashree Puranik

Found 3 papers, 1 papers with code

Improving Robustness via Tilted Exponential Layer: A Communication-Theoretic Perspective

1 code implementation2 Nov 2023 Bhagyashree Puranik, Ahmad Beirami, Yao Qin, Upamanyu Madhow

State-of-the-art techniques for enhancing robustness of deep networks mostly rely on empirical risk minimization with suitable data augmentation.

Data Augmentation

Generalized Likelihood Ratio Test for Adversarially Robust Hypothesis Testing

no code implementations4 Dec 2021 Bhagyashree Puranik, Upamanyu Madhow, Ramtin Pedarsani

We derive the worst-case attack for the GLRT defense, and show that its asymptotic performance (as the dimension of the data increases) approaches that of the minimax defense.

Adversarially Robust Classification based on GLRT

no code implementations16 Nov 2020 Bhagyashree Puranik, Upamanyu Madhow, Ramtin Pedarsani

We evaluate the GLRT approach for the special case of binary hypothesis testing in white Gaussian noise under $\ell_{\infty}$ norm-bounded adversarial perturbations, a setting for which a minimax strategy optimizing for the worst-case attack is known.

Classification General Classification +2

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