Invariant post-tabular protection of census frequency counts


Shlomo, Natalie and Young, Caroline (2008) Invariant post-tabular protection of census frequency counts. In, Domingo-Ferrer, Josep and Saygin, Yücel (eds.) Privacy in Statistical Databases. UNESCO Chair in Data Privacy International Conference (PSD 2008) UK, Springer, 77-89. (Lecture Notes in Computer Science 5262/2008). (doi:10.1007/978-3-540-87471-3_7).

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Description/Abstract

Some countries use forms of random rounding as a post-tabular method to protect Census frequency counts disseminated in tables. These methods typically result in inconsistencies between aggregated internal cells to marginal totals and across same cells in different tables. A post-tabular method for perturbing frequency counts is proposed which preserves totals and corrects to a large extent inconsistencies. The perturbation is based on invariant probability transition matrices and the use of microdata keys. This method will be compared to common pre and post-tabular methods for protecting Census frequency counts.

Item Type: Book Section
ISBNs: 3540874704 (paperback)
9783540874706 (paperback)
Related URLs:
Keywords: invariantprobability transition matrix, microdata keys, additivity, consistency
Subjects: H Social Sciences > HA Statistics
Divisions: University Structure - Pre August 2011 > School of Social Sciences > Social Statistics
ePrint ID: 64422
Date Deposited: 12 Jan 2009
Last Modified: 27 Mar 2014 18:46
Publisher: Springer
URI: http://eprints.soton.ac.uk/id/eprint/64422

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