International Business Machines Corporation

Industrial Technology Research Institute

Yi-Hui Chen

Ci-Wei Lan

Jen-Hao Hsiao

Tyrone Wilberforce Grandison

Ya-Ling Chen

Li-Feng Tseng

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.

Growing community of inventors

Taipei, Taiwan

Yi-Hui Chen