ANONYMIZATION DEVICE, ANONYMIZATION METHOD, AND RECORDING MEDIUM IN WHICH PROGRAM THEREFOR IS RECORDED

摘要

The present invention provides an anonymization device capable of obtaining a statistically processed result of privacy information in which the trade-off between the anonymity for the original privacy information and the usability of the statistically processed result thereof is appropriate. The anonymization device is provided with: an analysis means which analyzes privacy information including attribute information of a plurality of individuals by a statistical process, and outputs the statistically processed results; and a selection means which selects and outputs a statistically processed result from among the plurality of statistically processed results, so that the selected result has an anonymity value satisfying a threshold value, the anonymity value indicating the degree of anonymity for the privacy information, and has the best match with the privacy information.