Debiasing Functions of Private Statistics in Postprocessing

Flavio Calmon, Elbert Du, Cynthia Dwork +2

Given a differentially private unbiased estimate $\tilde{q}=q(D)+\nu$ of a statistic $q(D)$, we wish to obtain unbiased estimates of functions of $q(D)$, such as $1/q(D)$, solely th…