METHOD OF PRIVACY PRESERVING IN DYNAMIC DATASETS PUBLICATION AND PRIVACY PRESERVING SYSTEM USING THE SAME

摘要

PURPOSE: A method of privacy preserving in dynamic dataset publication and a privacy preserving system using thereof are provided to prevent privacy intrusion by the repeated distribution of data. CONSTITUTION: A protection table generating unit(720) reads out the table T from the first storage. The protection table generating unit gets the predetermined piracy level value(P) as an input. The protection table generating unit creates the table QIT having schema and the table PT equipped with record having schema. The number of records having the Row_ID in the table PT is p. The sum of the PROB column of the records having the Row_ID in the table PT is 1.0.