In "The 2020 Census Disclosure Avoidance System TopDown Algorithm," Abowd et al. (2022) describe the concepts and methods used by the Disclosure Avoidance System (DAS) to produce formally private output in support of the 2020 Census data product releases, with a particular focus on the DAS implementation that was used to create the 2020 Census Redistricting Data (P.L. 94-171) Summary File. In this paper we describe the updates to the DAS that were required to release the Demographic and Housing Characteristics (DHC) File, which provides more granular tables than other data products, such as the Redistricting Data Summary File. We also describe the final configuration parameters used for the production DHC DAS implementation, as well as subsequent experimental data products to facilitate development of tools that provide confidence intervals for confidential 2020 Census tabulations.

翻译：在“2020年人口普查披露避免系统自上而下算法”一文中，Abowd等人（2022）描述了披露避免系统（DAS）为支持2020年人口普查数据产品发布而用于生成正式隐私输出的概念与方法，特别聚焦于用于创建2020年人口普查重划选区数据（P.L. 94-171）汇总文件的DAS实现。本文阐述了为发布人口与住房特征（DHC）文件而对DAS进行的必要更新，该文件提供了比其他数据产品（如重划选区数据汇总文件）更细粒度的表格。我们还描述了生产级DHC DAS实现所用的最终配置参数，以及后续为开发工具以构建2020年人口普查机密制表置信区间而生成的实验性数据产品。