Disentangling Improves VAEs' Robustness to Adversarial Attacks

Sep 25, 2019 Blind Submission readers: everyone Show Bibtex
  • TL;DR: We show that disentangled VAEs are more robust than vanilla VAEs to adversarial attacks that aim to trick them into decoding the adversarial input to a chosen target. We then develop an even more robust hierarchical disentangled VAE, Seatbelt-VAE.
  • Abstract: This paper is concerned with the robustness of VAEs to adversarial attacks. We highlight that conventional VAEs are brittle under attack but that methods recently introduced for disentanglement such as β-TCVAE (Chen et al., 2018) improve robustness, as demonstrated through a variety of previously proposed adversarial attacks (Tabacof et al. (2016); Gondim-Ribeiro et al. (2018); Kos et al.(2018)). This motivated us to develop Seatbelt-VAE, a new hierarchical disentangled VAE that is designed to be significantly more robust to adversarial attacks than existing approaches, while retaining high quality reconstructions.
  • Code: https://www.dropbox.com/sh/1x3vctui9oo5max/AACSSHTaxl6AkNkpgevXU1KVa?dl=1
  • Original Pdf:  pdf
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