Search Results for author: Sravanti Addepalli

Found 17 papers, 10 papers with code

Leveraging Vision-Language Models for Improving Domain Generalization in Image Classification

1 code implementation12 Oct 2023 Sravanti Addepalli, Ashish Ramayee Asokan, Lakshay Sharma, R. Venkatesh Babu

The proposed approach achieves state-of-the-art results on the standard Domain Generalization benchmarks in a black-box teacher setting as well as a white-box setting where the weights of the VLM are accessible.

Domain Generalization Image Classification

Certified Adversarial Robustness Within Multiple Perturbation Bounds

1 code implementation20 Apr 2023 Soumalya Nandi, Sravanti Addepalli, Harsh Rangwani, R. Venkatesh Babu

We further propose a novel \textit{training noise distribution} along with a \textit{regularized training scheme} to improve the certification within both $\ell_1$ and $\ell_2$ perturbation norms simultaneously.

Adversarial Robustness

RMLVQA: A Margin Loss Approach for Visual Question Answering With Language Biases

no code implementations CVPR 2023 Abhipsa Basu, Sravanti Addepalli, R. Venkatesh Babu

The first component considers the frequency of answers within a question type in the training data, which addresses the concern of the class-imbalance causing the language biases.

Question Answering Visual Question Answering

Efficient and Effective Augmentation Strategy for Adversarial Training

1 code implementation27 Oct 2022 Sravanti Addepalli, Samyak Jain, R. Venkatesh Babu

We first explain this contrasting behavior by viewing augmentation during training as a problem of domain generalization, and further propose Diverse Augmentation-based Joint Adversarial Training (DAJAT) to use data augmentations effectively in adversarial training.

Computational Efficiency Domain Generalization

Scaling Adversarial Training to Large Perturbation Bounds

1 code implementation18 Oct 2022 Sravanti Addepalli, Samyak Jain, Gaurang Sriramanan, R. Venkatesh Babu

The presence of images that flip Oracle predictions and those that do not makes this a challenging setting for adversarial robustness.

Adversarial Defense Adversarial Robustness

Towards Efficient and Effective Self-Supervised Learning of Visual Representations

1 code implementation18 Oct 2022 Sravanti Addepalli, Kaushal Bhogale, Priyam Dey, R. Venkatesh Babu

Self-supervision has emerged as a propitious method for visual representation learning after the recent paradigm shift from handcrafted pretext tasks to instance-similarity based approaches.

Representation Learning Self-Supervised Learning

Learning an Invertible Output Mapping Can Mitigate Simplicity Bias in Neural Networks

no code implementations4 Oct 2022 Sravanti Addepalli, Anshul Nasery, R. Venkatesh Babu, Praneeth Netrapalli, Prateek Jain

To bridge the gap between these two lines of work, we first hypothesize and verify that while SB may not altogether preclude learning complex features, it amplifies simpler features over complex ones.

DAFT: Distilling Adversarially Fine-tuned Models for Better OOD Generalization

no code implementations19 Aug 2022 Anshul Nasery, Sravanti Addepalli, Praneeth Netrapalli, Prateek Jain

We consider the problem of OOD generalization, where the goal is to train a model that performs well on test distributions that are different from the training distribution.

Towards Data-Free Model Stealing in a Hard Label Setting

no code implementations CVPR 2022 Sunandini Sanyal, Sravanti Addepalli, R. Venkatesh Babu

In this work, we show that it is indeed possible to steal Machine Learning models by accessing only top-1 predictions (Hard Label setting) as well, without access to model gradients (Black-Box setting) or even the training dataset (Data-Free setting) within a low query budget.

Towards Efficient and Effective Adversarial Training

1 code implementation NeurIPS 2021 Gaurang Sriramanan, Sravanti Addepalli, Arya Baburaj, Venkatesh Babu R

The vulnerability of Deep Neural Networks to adversarial attacks has spurred immense interest towards improving their robustness.

Guided Adversarial Attack for Evaluating and Enhancing Adversarial Defenses

1 code implementation NeurIPS 2020 Gaurang Sriramanan, Sravanti Addepalli, Arya Baburaj, R. Venkatesh Babu

Further, we propose Guided Adversarial Training (GAT), which achieves state-of-the-art performance amongst single-step defenses by utilizing the proposed relaxation term for both attack generation and training.

Adversarial Attack Adversarial Defense

Saliency-driven Class Impressions for Feature Visualization of Deep Neural Networks

no code implementations31 Jul 2020 Sravanti Addepalli, Dipesh Tamboli, R. Venkatesh Babu, Biplab Banerjee

Existing visualization methods develop high confidence images consisting of both background and foreground features.

Towards Achieving Adversarial Robustness by Enforcing Feature Consistency Across Bit Planes

1 code implementation CVPR 2020 Sravanti Addepalli, Vivek B. S., Arya Baburaj, Gaurang Sriramanan, R. Venkatesh Babu

In this work, we attempt to address this problem by training networks to form coarse impressions based on the information in higher bit planes, and use the lower bit planes only to refine their prediction.

Adversarial Robustness

DeGAN : Data-Enriching GAN for Retrieving Representative Samples from a Trained Classifier

no code implementations27 Dec 2019 Sravanti Addepalli, Gaurav Kumar Nayak, Anirban Chakraborty, R. Venkatesh Babu

We use the available data, that may be an imbalanced subset of the original training dataset, or a related domain dataset, to retrieve representative samples from a trained classifier, using a novel Data-enriching GAN (DeGAN) framework.

Data-free Knowledge Distillation Incremental Learning +1

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