Conditions for swappability of records in a microdata set when some marginals are fixed
Statistics Theory
2007-06-16 v1 Statistics Theory
Abstract
We consider swapping of two records in a microdata set for the purpose of disclosure control. We give some necessary and sufficient conditions that some observations can be swapped between two records under the restriction that a given set of marginals are fixed. We also give an algorithm to find another record for swapping if one wants to swap out some observations from a particular record. Our result has a close connection to the construction of Markov bases for contingency tables with given marginals.
Keywords
Cite
@article{arxiv.math/0603603,
title = {Conditions for swappability of records in a microdata set when some marginals are fixed},
author = {Akimichi Takemura and Hisayuki Hara},
journal= {arXiv preprint arXiv:math/0603603},
year = {2007}
}