Search Results for author: Deepak Ravikumar

Found 8 papers, 1 papers with code

Verifix: Post-Training Correction to Improve Label Noise Robustness with Verified Samples

no code implementations13 Mar 2024 Sangamesh Kodge, Deepak Ravikumar, Gobinda Saha, Kaushik Roy

We introduce Verifix, a novel Singular Value Decomposition (SVD) based algorithm that leverages a small, verified dataset to correct the model weights using a single update.

Unveiling Privacy, Memorization, and Input Curvature Links

no code implementations28 Feb 2024 Deepak Ravikumar, Efstathia Soufleri, Abolfazl Hashemi, Kaushik Roy

Second, we present a novel insight showing that input loss curvature is upper-bounded by the differential privacy parameter.

Memorization

Memorization Through the Lens of Curvature of Loss Function Around Samples

no code implementations11 Jul 2023 Isha Garg, Deepak Ravikumar, Kaushik Roy

Second, we inject corrupted samples which are memorized by the network, and show that these are learned with high curvature.

Memorization

Norm-Scaling for Out-of-Distribution Detection

no code implementations6 May 2022 Deepak Ravikumar, Kaushik Roy

Therefore, applying a single threshold for all classes is not ideal since the same similarity score represents different uncertainties for different classes.

Out-of-Distribution Detection

TREND: Transferability based Robust ENsemble Design

1 code implementation4 Aug 2020 Deepak Ravikumar, Sangamesh Kodge, Isha Garg, Kaushik Roy

In this work, we study the effect of network architecture, initialization, optimizer, input, weight and activation quantization on transferability of adversarial samples.

Adversarial Robustness Quantization

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