Minimum distance controlled tabular adjustment (CTA) is a recent perturbative methodology for
the protection of tabular data. An implementation of CTA was recently used by Eurostat for the
protection of European Union level structural business and animal production statistics. The realworld
instances to be solved forced the classical CTA model to be extended with two features:
first, to deal with non-additive tables; second, and most important, to consider negative protection
levels. The latter extension means a significant modification of the classical CTA mixed integer
linear model. We present and compare new models for these extensions. Computational results
are reported using a set of real-world instances, and two state-of-the-art commercial solvers
(CPLEX and Xpress).
CitationCastro Pérez, Jordi. Extending controlled tabular adjustment for non-additive tabular data with negative protection levels. "SORT", vol. 35, núm. 1, p. 3-20.
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