Publications

An Evolutionary Optimization Approach for Categorical Data Protection

Publication Type:

Conference Paper

Authors:

Jordi Marés; Vicenç Torra

Source:

Privacy and Anonymity in the Information Society 2012, Berlin (2012)

Keywords:

genetic algorithms; data privacy; categorical data; data mining; information loss; disclosure risk

Abstract:

The continuous growing amount of public sensible data has increased the risk of breaking the privacy of people or institutions in those datasets. Many protection methods have been developed to solve this problem by either distorting or generalizing data but taking into account the difficult trade-off between data utility (information loss) and protection against disclosure (disclosure risk).
In this paper we present an optimization approach for data protection based on an evolutionary algorithm which is guided by a combination of information loss and disclosure risk measures. In this way, state-of-the-art protection methods are combined to obtain new data protections with a better trade-off between these two measures. The paper presents several experimental results that assess the performance of our approach.

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