Search Results for author: Shahbaz Rezaei

Found 9 papers, 4 papers with code

Dynamic Batch Norm Statistics Update for Natural Robustness

no code implementations31 Oct 2023 Shahbaz Rezaei, Mohammad Sadegh Norouzzadeh

We propose a unified framework consisting of a corruption-detection model and BN statistics update that improves the corruption accuracy of any off-the-shelf trained model.

Data Augmentation

On the Discredibility of Membership Inference Attacks

no code implementations6 Dec 2022 Shahbaz Rezaei, Xin Liu

We argue that current membership inference attacks can identify memorized subpopulations, but they cannot reliably identify which exact sample in the subpopulation was used during the training.

An Efficient Subpopulation-based Membership Inference Attack

no code implementations4 Mar 2022 Shahbaz Rezaei, Xin Liu

The intuition is that the model response should not be significantly different between the target sample and its subpopulation if it was not a training sample.

Inference Attack Membership Inference Attack

User-Level Membership Inference Attack against Metric Embedding Learning

no code implementations4 Mar 2022 Guoyao Li, Shahbaz Rezaei, Xin Liu

In this paper, we develop a user-level MI attack where the goal is to find if any sample from the target user has been used during training even when no exact training sample is available to the attacker.

Inference Attack Membership Inference Attack +1

Accuracy-Privacy Trade-off in Deep Ensemble: A Membership Inference Perspective

1 code implementation12 May 2021 Shahbaz Rezaei, Zubair Shafiq, Xin Liu

We analyze the impact of various factors in deep ensembles and demonstrate the root cause of the trade-off.

Ensemble Learning Inference Attack +1

On the Difficulty of Membership Inference Attacks

1 code implementation CVPR 2021 Shahbaz Rezaei, Xin Liu

Recent studies propose membership inference (MI) attacks on deep models, where the goal is to infer if a sample has been used in the training process.

Image Classification Inference Attack

Security of Deep Learning Methodologies: Challenges and Opportunities

no code implementations8 Dec 2019 Shahbaz Rezaei, Xin Liu

Despite the plethora of studies about security vulnerabilities and defenses of deep learning models, security aspects of deep learning methodologies, such as transfer learning, have been rarely studied.

Transfer Learning

Multitask Learning for Network Traffic Classification

1 code implementation12 Jun 2019 Shahbaz Rezaei, Xin Liu

We show that with a large amount of easily obtainable data samples for bandwidth and duration prediction tasks, and only a few data samples for the traffic classification task, one can achieve high accuracy.

Classification General Classification +3

A Target-Agnostic Attack on Deep Models: Exploiting Security Vulnerabilities of Transfer Learning

1 code implementation ICLR 2020 Shahbaz Rezaei, Xin Liu

Due to insufficient training data and the high computational cost to train a deep neural network from scratch, transfer learning has been extensively used in many deep-neural-network-based applications.

Face Recognition Image Classification +3

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