Associative classification rules hiding for privacy preservation. (16th May 2011)

• Record Type: Journal Article
• Authors: Natwichai, Juggapong; Sun, Xingzhi; Li, Xue
• Is Part Of: International journal of intelligent information and database systems. Volume 5:Number 3(2011)
• Page Start: 246
• Page End: 270
• Publication Date: 2011-05-16
• Subjects: privacy preservation -- associative classification rules -- rule hiding -- data quality -- privacy protection -- data reduction; Database management -- Computer programs -- Periodicals; Information retrieval -- Computer programs -- Periodicals; Information storage and retrieval systems -- Computer programs -- Periodicals; Artificial intelligence -- Periodicals; Expert systems (Computer science) -- Periodicals; Intelligent agents (Computer software) -- Periodicals; 006.33
• Languages: English
• ISSNs: 1751-5858

Abstract

Sensitive patterns could be discovered from the given data when the data are shared between business partners. Such patterns should not be disclosed to the other parties. However, the shared data should be credible and trustworthy for their 'quality'. In this paper, we address a problem of sensitive classification rule hiding by a data reduction approach. We focus on an important type of classification rules, i.e., associative classification rule. In our context, the impact on data quality generated by data reduction processes is represented by the number of false-dropped rules and ghost rules. To address the problem, we propose a few observations on the reduction approach. Subsequently, we propose a greedy algorithm for the problem based on the observations. Also, we apply two-bitmap indexes to improve the efficiency of the proposed algorithm. Experiment results are presented to show the effectiveness and the efficiency of the proposed algorithm.