Non-Robust Features are Not Always Useful in One-Class Classification

Fuente: arXiv
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Autores principales: Lau, Matthew, Wang, Haoran, Helbling, Alec, Hul, Matthew, Peng, ShengYun, Andreoni, Martin, Lunardi, Willian T., Lee, Wenke
Formato: Preprint
Publicado: 2024
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author Lau, Matthew
Wang, Haoran
Helbling, Alec
Hul, Matthew
Peng, ShengYun
Andreoni, Martin
Lunardi, Willian T.
Lee, Wenke
author_facet Lau, Matthew
Wang, Haoran
Helbling, Alec
Hul, Matthew
Peng, ShengYun
Andreoni, Martin
Lunardi, Willian T.
Lee, Wenke
contents The robustness of machine learning models has been questioned by the existence of adversarial examples. We examine the threat of adversarial examples in practical applications that require lightweight models for one-class classification. Building on Ilyas et al. (2019), we investigate the vulnerability of lightweight one-class classifiers to adversarial attacks and possible reasons for it. Our results show that lightweight one-class classifiers learn features that are not robust (e.g. texture) under stronger attacks. However, unlike in multi-class classification (Ilyas et al., 2019), these non-robust features are not always useful for the one-class task, suggesting that learning these unpredictive and non-robust features is an unwanted consequence of training.
format Preprint
id arxiv_https___arxiv_org_abs_2407_06372
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Non-Robust Features are Not Always Useful in One-Class Classification
Lau, Matthew
Wang, Haoran
Helbling, Alec
Hul, Matthew
Peng, ShengYun
Andreoni, Martin
Lunardi, Willian T.
Lee, Wenke
Machine Learning
Computer Vision and Pattern Recognition
68T45
I.2.10; I.4.10; I.5.4
The robustness of machine learning models has been questioned by the existence of adversarial examples. We examine the threat of adversarial examples in practical applications that require lightweight models for one-class classification. Building on Ilyas et al. (2019), we investigate the vulnerability of lightweight one-class classifiers to adversarial attacks and possible reasons for it. Our results show that lightweight one-class classifiers learn features that are not robust (e.g. texture) under stronger attacks. However, unlike in multi-class classification (Ilyas et al., 2019), these non-robust features are not always useful for the one-class task, suggesting that learning these unpredictive and non-robust features is an unwanted consequence of training.
title Non-Robust Features are Not Always Useful in One-Class Classification
topic Machine Learning
Computer Vision and Pattern Recognition
68T45
I.2.10; I.4.10; I.5.4
url https://arxiv.org/abs/2407.06372