The 2020 Census Disclosure Avoidance System TopDown Algorithm. (arXiv:2204.08986v1 [cs.CR])

The Census TopDown Algorithm (TDA) is a disclosure avoidance system using
differential privacy for privacy-loss accounting. The algorithm ingests the
final, edited version of the 2020 Census data and the final tabulation
geographic definitions. The algorithm then creates noisy versions of key
queries on the data, referred to as measurements, using zero-Concentrated
Differential Privacy. Another key aspect of the TDA are invariants, statistics
that the Census Bureau has determined, as matter of policy, to exclude from the
privacy-loss accounting. The …

census disclosure system