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:
Aug. 19, 2014
Filed:
Aug. 16, 2012
Ya-ling Chen, Hsinchu, TW;
Ci-wei Lan, Taipei, TW;
Tyrone W Grandison, Armonk, NY (US);
Jen-hao Hsiao, Taipei, TW;
Li-feng Tseng, Taipei, TW;
Yi-hui Chen, Taipei, TW;
Ya-Ling Chen, Hsinchu, TW;
Ci-Wei Lan, Taipei, TW;
Tyrone W Grandison, Armonk, NY (US);
Jen-Hao Hsiao, Taipei, TW;
Li-Feng Tseng, Taipei, TW;
Yi-Hui Chen, Taipei, TW;
Industrial Technology Research Institute, Hsinchu, TW;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method and a system for preserving privacy of a dataset are provided. In the method, a k-anonymity value with respect to a sensitive data field is determined according to at least one first quasi-identifier. Data entries in each group have the same value in the one or more fields of the first quasi-identifier and data entries in different groups have different values in the one or more fields of the first quasi-identifier. A first group and a second group among the plurality of groups are determined according to the reference number Kr, where the first group and the second group are merged into a merging group. The number of data entries in the merging group is not less than a reference number Kr. One or more fields of at least one first quasi-identifier is masked for the merging group.