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cs.CR2022★ 3 cited
The Saddle-Point Accountant for Differential Privacy
Wael Alghamdi, Shahab Asoodeh, Flavio P. Calmon +4
We introduce a new differential privacy (DP) accountant called the saddle-point accountant (SPA). SPA approximates privacy guarantees for the composition of DP mechanisms in an acc…
cs.CR2022
Cactus Mechanisms: Optimal Differential Privacy Mechanisms in the Large-Composition Regime
Wael Alghamdi, Shahab Asoodeh, Flavio P. Calmon +3
Most differential privacy mechanisms are applied (i.e., composed) numerous times on sensitive data. We study the design of optimal differential privacy mechanisms in the limit of a…