New private and non-private estimators achieve per-instance KL error within constant factors of the best possible error over a new additive local neighborhood.
Then for any fixedε >0, δ ≤ ε, min A is (ε, δ)-DP max p∈P E x∼S(n,p) [dist(p, A(x))] ≥ 1 2 kX i=1 wi · τi · f (Pi) (17) Proof
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Instance-Optimality for Private KL Distribution Estimation
New private and non-private estimators achieve per-instance KL error within constant factors of the best possible error over a new additive local neighborhood.