TitleAn Evolutionary Approach to Enhance Data Privacy
Publication TypeJournal Article
Year of Publication2011
AuthorsJiménez J, Marés J, Torra V
JournalSoft Computing - A Fusion of Foundations, Methodologies and Applications
KeywordsEvolutionary Algorithms, Information Privacy and Security

Dissemination of data with sensitive information about individuals has an implicit risk of unauthorized dis- closure. Perturbative masking methods propose the distor- tion of the original data sets before publication, tackling a difficult tradeoff between data utility (low information loss) and protection against disclosure (low disclosure risk). In this paper we describe how information loss and disclosure risk measures can be integrated within an evolutionary algorithm to seek new and enhanced masking protections for continuous microdata. The proposed technique constitutes a hybrid approach that combines state-of-the-art protection methods with an evolutionary algorithm optimization. We also provide experimental results using three data sets in order to illustrate and empirically evaluate the application of this technique.