Memory Defense: More Robust Classificationvia a Memory-Masking Autoencoder

Overview

Memory Defense: More Robust Classificationvia a Memory-Masking Autoencoder

Authors:
- Eashan Adhikarla
- Dan Luo
- Dr. Brian D. Davison

Abstract

Many deep neural networks are susceptible to minute perturbations of images that have been carefully crafted to cause misclassification. Ideally, a robust classifier would be immune to small variations in input images, and a number of defensive approaches have been created as a result. One method would be to discern a latent representation which could ignore small changes to the input. However, typical autoencoders easily mingle inter-class latent representations when there are strong similarities between classes, making it harder for a decoder to accurately project the image back to the original high-dimensional space. We propose a novel framework, Memory Defense, an augmented classifier with a memory-masking autoencoder to counter this challenge. By masking other classes, the autoencoder learns class-specific independent latent representations. We test the model's robustness against four widely used attacks. Experiments on the Fashion-MNIST & CIFAR-10 datasets demonstrate the superiority of our model. We make available our source code at GitHub repository: https://github.com/eashanadhikarla/MemoryDef

Pipeline

Citation

If you use this repo or find it useful, please consider citing:

@misc{adhikarla2022memory,
      title={Memory Defense: More Robust Classification via a Memory-Masking Autoencoder}, 
      author={Eashan Adhikarla and Dan Luo and Brian D. Davison},
      year={2022},
      eprint={2202.02595},
      archivePrefix={arXiv},
      primaryClass={cs.CV}
}
Owner
Eashan Adhikarla
Eashan Adhikarla
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