INFORMATION PROTECTION SYSTEM, INFORMATION PROTECTION METHOD, AND INFORMATION PROTECTION PROGRAM

摘要

Provided is an information protection system capable of setting an appropriate generalization unit for a quasi-identifier even in the case of time evolution in a k-anonymization process for a data set of personal information having the quasi-identifier. For this purpose, the information protection system is provided with a means for calculating a future k-value according to a calculation formula for the quasi-identifier that evolves over time, a means for comparing the calculated k-value and a preset reference value, and a means for displaying a result of the comparison, whereby implementation of a time evolution simulation is enabled.