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- W2116775184 abstract "Controlled tabular adjustment (CTA) is an emerging protection technique for tabular data pro-tection. CTA formulates a mixed integer linear programmingproblem, which is tough for tablesof moderate size. Finding a feasible initial solution may even be a challenging task for largeinstances. On the other hand, end users of tabular data protection techniques give priority to fastexecutions and are thus satisfied in practice with suboptimal solutions. In this work the fix-and-relax strategy is applied to large CTA instances. Fix-and-relax is based on partitioning the set ofbinary variables into clusters to selectively explore a smaller branch-and-cut tree. We report ex-tensive computational results on a set of real and random CTAinstances. Fix-and-relax is shownto be competitive compared to plain CPLEX branch-and-cut interms of quickly finding either afeasible solution or a good upper bound in difficult instances." @default.
- W2116775184 created "2016-06-24" @default.
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- W2116775184 date "2013-07-01" @default.
- W2116775184 modified "2023-09-27" @default.
- W2116775184 title "A fix-and-relax heuristic for controlled tabular adjustment" @default.
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