Fernando Beltran

QIF-DP: Privacy-Accounted, Leakage-Audited Budget Allocation for zCDP Query Answering

In privacy-preserving statistical query systems, the released per-query privacy-budget vector can itself constitute privacy-relevant metadata. If budgets are computed from private workload statistics, the vector may reveal sparsity, imbalance, or dispersion even when the final answers are differentially private. We stu...