The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 12, 2024
Filed:
Feb. 20, 2020
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Zen Ishikura, Musashino, JP;
Satoshi Hasegawa, Musashino, JP;
Seiji Takahashi, Musashino, JP;
Susumu Kakuta, Musashino, JP;
NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Tokyo, JP;
Abstract
A technique of calculating evaluation values regarding anonymity for a table obtained by anonymizing an arbitrary table is provided. An anonymity evaluation apparatus includes an evaluation target table generation part configured to generate a first evaluation target table of p×L including L records which are sets of values of p master attributes different from each other from a table to be anonymized of M×N and generate a second evaluation target table of p×L by anonymizing the p master attributes in the first evaluation target table from an anonymized table of M×N by anonymizing the p master attributes in the table to be anonymized, where M is the number of attributes, N is the number of records, p is the number of master attributes, and L is the number of sets of values of p master attributes which are different from each other.