Search Results for author: Akshayvarun Subramanya

Found 8 papers, 4 papers with code

Backdoor Attacks on Vision Transformers

1 code implementation16 Jun 2022 Akshayvarun Subramanya, Aniruddha Saha, Soroush Abbasi Koohpayegani, Ajinkya Tejankar, Hamed Pirsiavash

Vision Transformers (ViT) have recently demonstrated exemplary performance on a variety of vision tasks and are being used as an alternative to CNNs.

Blocking

A Simple Approach to Adversarial Robustness in Few-shot Image Classification

no code implementations11 Apr 2022 Akshayvarun Subramanya, Hamed Pirsiavash

Few-shot image classification, where the goal is to generalize to tasks with limited labeled data, has seen great progress over the years.

Adversarial Robustness Few-Shot Image Classification +2

Hidden Trigger Backdoor Attacks

3 code implementations30 Sep 2019 Aniruddha Saha, Akshayvarun Subramanya, Hamed Pirsiavash

Backdoor attacks are a form of adversarial attacks on deep networks where the attacker provides poisoned data to the victim to train the model with, and then activates the attack by showing a specific small trigger pattern at the test time.

Backdoor Attack Image Classification

Role of Spatial Context in Adversarial Robustness for Object Detection

1 code implementation30 Sep 2019 Aniruddha Saha, Akshayvarun Subramanya, Koninika Patil, Hamed Pirsiavash

However, one can show that an adversary can design adversarial patches which do not overlap with any objects of interest in the scene and exploit contextual reasoning to fool standard detectors.

Adversarial Attack Adversarial Robustness +3

Confidence estimation in Deep Neural networks via density modelling

no code implementations21 Jul 2017 Akshayvarun Subramanya, Suraj Srinivas, R. Venkatesh Babu

State-of-the-art Deep Neural Networks can be easily fooled into providing incorrect high-confidence predictions for images with small amounts of adversarial noise.

Training Sparse Neural Networks

no code implementations21 Nov 2016 Suraj Srinivas, Akshayvarun Subramanya, R. Venkatesh Babu

Deep neural networks with lots of parameters are typically used for large-scale computer vision tasks such as image classification.

General Classification Image Classification

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