This page shows all publications that appeared in the IASI annual research reports. Authors currently affiliated with the Institute are always listed with the full name.

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Show all publications of the year  1990, with author ALL, in the category IASI Research Reports (or show them all):

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IASI Research Report n. 312  (Previous    Next) 


Malvestuto F.M., Moscarini M., Rafanelli M.

Suppressing marginal cells to protect sensitive information in a two-dimensional statistical table.

ABSTRACT

We propose a method to protect sensitive information in a two-dimensional statistical table based on the suppression of certain marginal cells. A sensitive cell set is considered unprotected if its exact value can be computed from the values of nonsensitive cells and unsuppressed marginal cells. We provide efficient algorithms to solve the following problems: deciding whether the sensitive cell sets are protected, identifying and evaluating all unprotected cell sets, suppressing the fewest marginal cells to protect all the sensitive cells.