DP-SGD with expected or batch averaging (EASGM or ASGM) has weaker privacy guarantees than the standard subsampled Gaussian mechanism analysis, confirmed by theoretical re-analysis and audits of libraries including Opacus.
Then, according to Lemma 2.6, we have limπββ (π β) β (πβ1) (πΌ)= 0for all πΌβ ( 0, 1]
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Rethinking the Security of DP-SGD: A Corrected Analysis of Differentially Private Machine Learning
DP-SGD with expected or batch averaging (EASGM or ASGM) has weaker privacy guarantees than the standard subsampled Gaussian mechanism analysis, confirmed by theoretical re-analysis and audits of libraries including Opacus.