Fix-and-relax approaches for controlled tabular adjustment
نویسندگان
چکیده
منابع مشابه
Fix-and-relax approaches for controlled tabular adjustment
Controlled tabular adjustment (CTA) is a relatively new protection technique for tabular data protection. CTA formulates a mixed integer linear programming problem, which is challenging for tables of moderate size. Even finding a feasible initial solution may be a challenging task for large instances. On the other hand, end users of tabular data protection techniques give priority to fast execu...
متن کاملA fix-and-relax heuristic for controlled tabular adjustment
Controlled tabular adjustment (CTA) is an emerging protection technique for tabular data protection. CTA formulates a mixed integer linear programming problem, which is tough for tables of moderate size. Finding a feasible initial solution may even be a challenging task for large instances. On the other hand, end users of tabular data protection techniques give priority to fast executions and a...
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One of the main concerns of national statistical agencies (NSAs) is to publish tabular data. NSAs have to guarantee that no private information from specific respondents can be disclosed from the released tables. The purpose of the statistical disclosure control field is to avoid such a leak of private information. Most protection techniques for tabular data rely on the formulation of a large m...
متن کاملExtending controlled tabular adjustment for non-additive tabular data with negative protection levels
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 wi...
متن کاملPresent and future research on controlled tabular adjustment
Controlled tabular adjustment (CTA) can be classified within the group of approaches that perturb output data (i.e., tabular data), unlike other methods that focus on the original microdata. Being a post-tabular data perturbation technique it becomes easier to guarantee consistency and quality of the released information (e.g., table additivity, preservation of subtotal or total cells of the or...
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ژورنال
عنوان ژورنال: Computers & Operations Research
سال: 2015
ISSN: 0305-0548
DOI: 10.1016/j.cor.2014.11.018