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Scalable Differential Privacy with Certified Robustness in Adversarial Learning
Hai Phan · My T. Thai · Han Hu · Ruoming Jin · Tong Sun · Dejing Dou

Wed Jul 15 12:00 PM -- 12:45 PM & Thu Jul 16 01:00 AM -- 01:45 AM (PDT) @ Virtual

In this paper, we aim to develop a scalable algorithm to preserve differential privacy (DP) in adversarial learning for deep neural networks (DNNs), with certified robustness to adversarial examples. By leveraging the sequential composition theory in DP, we randomize both input and latent spaces to strengthen our certified robustness bounds. To address the trade-off among model utility, privacy loss, and robustness, we design an original adversarial objective function, based on the post-processing property in DP, to tighten the sensitivity of our model. A new stochastic batch training is proposed to apply our mechanism on large DNNs and datasets, by bypassing the vanilla iterative batch-by-batch training in DP DNNs. An end-to-end theoretical analysis and evaluations show that our mechanism notably improves the robustness and scalability of DP DNNs.

Author Information

Hai Phan (New Jersey Institute of Technology)
My T. Thai (University of Florida)
Han Hu (New Jersey Institute of Technology)
Ruoming Jin (Kent State University)
Tong Sun (Adobe Research)
Dejing Dou (" University of Oregon, USA")

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