| 摘要 |
To achieve query-response data publishing which ensures ε-differential privacy without setting a number of inquiries, this information processing device comprises: a parameter storage means which stores a total privacy strength which satisfies as a total a prescribed differential privacy in query-response publishing which ensures ε-differential privacy, and a residual privacy proportion which is the proportion of change of residual privacy strength which is the sum of the privacy strength which remains after setting the privacy strength which is determined in response to an inquiry; a residual privacy strength storage means which stores the residual privacy strength; and a privacy strength determination means which determines the privacy strength with respect to the query on the basis of the residual privacy proportion and the residual privacy strength. |
