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Activity Number: 37
Type: Contributed
Date/Time: Sunday, August 6, 2006 : 2:00 PM to 3:50 PM
Sponsor: Section on Survey Research Methods
Abstract - #306653
Title: Disclosure Avoidance for the 2007 ACS PUMS: a Model-Based Approach for Group-Quarters Data
Author(s): Rolando Rodriguez*+
Companies: U.S. Census Bureau
Address: 4401 Suitland Road, Suitland, MD, 20764,
Keywords: confidentiality protection ; disclosure avoidance ; ACS ; microdata ; group quarters
Abstract:

In 2007 the Census Bureau will release ACS PUMS data with group quarters (GQ) records. GQ consists of institutional facilities such as prisons and non-institutional facilities such as dormitories. We are developing a model-based approach to create partially-synthetic data for records at risk of identity disclosure. This contrasts with methods like swapping, which substitute or rearrange records. Modeling may more accurately reproduce the data distributions and provide better protection. We can implement models using information from a single geographically-isolated institution. Other methods must pool information from several institutions to insure proper protection. Our approach has several stages: flagging records at risk, modeling, verifying the resulting distributions, and analyzing the improvements in confidentiality. We discuss this process along with GQ-specific issues.

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