| 摘要 |
The present invention provides an information processing device that allows statistical properties included in non-anonymized data to be preserved even after the data has been anonymized. The information processing device is provided with: a means for anonymizing data sets; a means for determining that a difference in appearance ratios of attribute values of one specific quasi-identifier in each of a non-anonymized data set and an anonymized data set is greater than or equal to a threshold value; and a means for reducing records included in the anonymized data set when the aforementioned difference is greater than or equal to the threshold value, such that the anonymity of the anonymization is inherited and the aforementioned difference becomes smaller. |
