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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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|
|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
|Date Deposited:||12 Jan 2009|
|Last Modified:||27 Mar 2014 18:46|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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