Search International and National Patent Collections
|1. (WO2015122403) ANONYMIZATION INDEX CALCULATION SYSTEM|
|Applicants:||KABUSHIKI KAISHA TOSHIBA
TOSHIBA SOLUTIONS CORPORATION
|Title:||ANONYMIZATION INDEX CALCULATION SYSTEM|
Te anonymization index calculation system (100) according to an embodiment calculates an anonymization index including the degree of anonymization and the degree of data addition. The anonymization index calculation system comprises a data storage means (110), an anonymization means (120), an anonymization degree calculation means (130), and an addition degree calculation means (131). The data storage means stores source data including a value for each item for each individual. The anonymization means generates anonymization data from the source data by anonymizing values for some items in the source data. The anonymization degree calculation means calculates the anonymization degree indicating the degree of anonymization, on the basis of the anonymization data and the source data. The addition degree calculation means calculates the degree of data addition, corresponding to the probability of anonymization data being generated from the source data.