Invariant post-tabular protection of census frequency counts


Shlomo, Natalie and Young, Caroline, (2008) Invariant post-tabular protection of census frequency counts Domingo-Ferrer, Josep and Saygin, Yücel (eds.) In Privacy in Statistical Databases. Springer., pp. 77-89. (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: Conference or Workshop Item (Paper)
Digital Object Identifier (DOI): doi:10.1007/978-3-540-87471-3_7
ISBNs: 3540874704 (print)
9783540874706 (print)
Venue - Dates: UNESCO Chair in Data Privacy International Conference (PSD 2008), 2008-09-24 - 2008-09-26
Keywords: invariantprobability transition matrix, microdata keys, additivity, consistency
Subjects:
ePrint ID: 64422
Date :
Date Event
2008Published
Date Deposited: 12 Jan 2009
Last Modified: 16 Apr 2017 17:20
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/64422

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