Search Results for author: Ruchit Rawal

Found 10 papers, 5 papers with code

Perturbed examples reveal invariances shared by language models

no code implementations7 Nov 2023 Ruchit Rawal, Mariya Toneva

Possessing a wide variety of invariances may be a key reason for the recent successes of large language models, and our framework can shed light on the types of invariances that are retained by or emerge in new models.

DAD++: Improved Data-free Test Time Adversarial Defense

2 code implementations10 Sep 2023 Gaurav Kumar Nayak, Inder Khatri, Shubham Randive, Ruchit Rawal, Anirban Chakraborty

With the increasing deployment of deep neural networks in safety-critical applications such as self-driving cars, medical imaging, anomaly detection, etc., adversarial robustness has become a crucial concern in the reliability of these networks in real-world scenarios.

Adversarial Defense Adversarial Robustness +4

What Happens During Finetuning of Vision Transformers: An Invariance Based Investigation

no code implementations12 Jul 2023 Gabriele Merlin, Vedant Nanda, Ruchit Rawal, Mariya Toneva

The pretrain-finetune paradigm usually improves downstream performance over training a model from scratch on the same task, becoming commonplace across many areas of machine learning.

Robust Few-shot Learning Without Using any Adversarial Samples

1 code implementation3 Nov 2022 Gaurav Kumar Nayak, Ruchit Rawal, Inder Khatri, Anirban Chakraborty

These methods rely on the generation of adversarial samples in every episode of training, which further adds a computational burden.

Decision Making Few-Shot Learning

Data-free Defense of Black Box Models Against Adversarial Attacks

1 code implementation3 Nov 2022 Gaurav Kumar Nayak, Inder Khatri, Ruchit Rawal, Anirban Chakraborty

At test time, WNR combined with trained regenerator network is prepended to the black box network, resulting in a high boost in adversarial accuracy.

Adversarial Robustness

DE-CROP: Data-efficient Certified Robustness for Pretrained Classifiers

no code implementations17 Oct 2022 Gaurav Kumar Nayak, Ruchit Rawal, Anirban Chakraborty

Existing works use this technique to provably secure a pretrained non-robust model by training a custom denoiser network on entire training data.

Holistic Approach to Measure Sample-level Adversarial Vulnerability and its Utility in Building Trustworthy Systems

no code implementations5 May 2022 Gaurav Kumar Nayak, Ruchit Rawal, Rohit Lal, Himanshu Patil, Anirban Chakraborty

We, therefore, propose a holistic approach for quantifying adversarial vulnerability of a sample by combining these different perspectives, i. e., degree of model's reliance on high-frequency features and the (conventional) sample-distance to the decision boundary.

Adversarial Attack Knowledge Distillation

MMD-ReID: A Simple but Effective Solution for Visible-Thermal Person ReID

1 code implementation9 Nov 2021 Chaitra Jambigi, Ruchit Rawal, Anirban Chakraborty

Learning modality invariant features is central to the problem of Visible-Thermal cross-modal Person Reidentification (VT-ReID), where query and gallery images come from different modalities.

Climate Adaptation: Reliably Predicting from Imbalanced Satellite Data

1 code implementation26 Apr 2020 Ruchit Rawal, Prabhu Pradhan

The utility of aerial imagery (Satellite, Drones) has become an invaluable information source for cross-disciplinary applications, especially for crisis management.

Management

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