Security and Privacy in Communication Networks. 8th International ICST Conference, SecureComm 2012, Padua, Italy, September 3-5, 2012. Revised Selected Papers

Research Article

New Multi-dimensional Sorting Based K-Anonymity Microaggregation for Statistical Disclosure Control

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  • @INPROCEEDINGS{10.1007/978-3-642-36883-7_16,
        author={Abdun Mahmood and Md. Kabir and Abdul Mustafa},
        title={New Multi-dimensional Sorting Based K-Anonymity Microaggregation for Statistical Disclosure Control},
        proceedings={Security and Privacy in Communication Networks. 8th International ICST Conference, SecureComm 2012, Padua, Italy, September 3-5, 2012. Revised Selected Papers},
        proceedings_a={SECURECOMM},
        year={2013},
        month={2},
        keywords={Privacy Microaggregation Microdata protection 
                  -anonymity Disclosure control},
        doi={10.1007/978-3-642-36883-7_16}
    }
    
  • Abdun Mahmood
    Md. Kabir
    Abdul Mustafa
    Year: 2013
    New Multi-dimensional Sorting Based K-Anonymity Microaggregation for Statistical Disclosure Control
    SECURECOMM
    Springer
    DOI: 10.1007/978-3-642-36883-7_16
Abdun Mahmood1,*, Md. Kabir1,*, Abdul Mustafa2,*
  • 1: University of New South Wales, Australian Defence Force Academy
  • 2: University of Canberra
*Contact email: Abdun.Mahmood@unsw.edu.au, m.kabir@unsw.edu.au, abdul.mustafa@jcu.edu.au

Abstract

In recent years, there has been an alarming increase of online identity theft and attacks using personally identifiable information. The goal of privacy preservation is to de-associate individuals from sensitive or information. Microaggregation techniques seeks to protect microdata in such a way that can be published and mined without providing any private information that can be linked to specific individuals. Microaggregation works by partitioning the microdata into groups of at least records and then replacing the records in each group with the centroid of the group. An optimal microaggregation method must minimize the information loss resulting from this replacement process. The challenge is how to minimize the information loss during the microaggregation process. This paper presents a new microaggregation technique for Statistical Disclosure Control (SDC). It consists of two stages. In the first stage, the algorithm sorts all the records in the data set in a particular way to ensure that during microaggregation very dissimilar observations are never entered into the same cluster. In the second stage an optimal microaggregation method is used to create -anonymous clusters while minimizing the information loss. It works by taking the sorted data and simultaneously creating two distant clusters using the two extreme sorted values as seeds for the clusters. The performance of the proposed technique is compared against the most recent microaggregation methods. Experimental results using benchmark datasets show that the proposed algorithm has the lowest information loss compared with a basket of techniques in the literature.