INFORMATION PROCESSING DEVICE FOR IMPLEMENTING ANONYMIZATION PROCESS, ANONYMIZATION METHOD, AND PROGRAM THEREFOR

摘要

The present invention provides an information processing device for implementing anonymization in such a manner that the abstraction levels of attribute values to be focused on are preferentially locally lowered. The information processing device is provided with: a means for outputting user information codes that include attribute values to be focused on by generating grouped focus area anonymization group candidates, and determining the focus area anonymization group candidate with the smallest information loss as a focus area anonymization group; and a means for calculating the information loss in the focus area anonymization group candidates.