关键词: k-匿名, 微数据, 隐私保护, 域泛化等级

Abstract: Datafly algorithm is an k-anonymity method for protecting data privacy in privacy preserving data publishing, the most frequent attribute of quasi-identifier attributes is generalized when realizing k-anonymity. Datafly algorithm can be executed when the values of an attribute of quasi-identifiers are diversity and the values of the other attributes are homogeneity. However, the character is impossible in practical applications. According to the problem, an bottom-up generalization algorithm for supporting multi-attribute is building. Experimental results demonstrate that the developed algorithm is efficient for solving information loss and elapsed time.

Key words: k-anonymity, microdata, privacy preserving, domain generalization hierarchy