Abstract #301291

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JSM 2002 Abstract #301291
Activity Number: 306
Type: Topic Contributed
Date/Time: Wednesday, August 14, 2002 : 10:30 AM to 12:20 PM
Sponsor: Section on Government Statistics*
Abstract - #301291
Title: Simulation Study for the Effectiveness of Masking Microdata with Mixtures of Multivariate Normal Distributions as a Disclosure Limiting Procedure
Author(s): Sam Hawala*+
Affiliation(s): U.S. Census Bureau
Address: 4600 Silver Hill Road , Washington, District of Columbia, 20233-9100, U.S.A.
Keywords: Confidentiality ; Disclosure Limitation ; Masked Microdata
Abstract:

This study's objective was to examine the degree of disclosure limitation offered by masking microdata with mixtures of multivariate normal distributions. It is a function of the overall magnitude of the masking error and of the parameters of the mixture. The assessment of disclosure risk is made using Winkler's matching software.

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Revised March 2002