Title
Anonymizing transactional datasets.
Abstract
In this paper, we study the privacy breach caused by unsafe correlations in transactional data where individuals have multiple tuples in a dataset. We provide two safety constraints to guarantee safe correlation of the data: 1 the safe grouping constraint to ensure that quasi-identifier and sensitive partitions are bounded by l-diversity and 2 the schema decomposition constraint to eliminate non-arbitrary correlations between non-sensitive and sensitive values to protect privacy and at the same time increase the aggregate analysis. In our technique, values are grouped together in unique partitions that enforce l-diversity at the level of individuals. We also propose an association preserving technique to increase the ability to learn/analyze from the anonymized data. To evaluate our approach, we conduct a set of experiments to determine the privacy breach and investigate the anonymization cost of safe grouping and preserving associations.
Year
DOI
Venue
2015
10.3233/JCS-140517
Journal of Computer Security
Keywords
Field
DocType
transactional data,data privacy
Data mining,Tuple,Computer science,Data anonymization,Correlation,Information privacy,Schema (psychology),Transactional leadership,Transaction data,Bounded function
Journal
Volume
Issue
ISSN
23
1
0926-227X
Citations 
PageRank 
References 
3
0.44
14
Authors
3
Name
Order
Citations
PageRank
Béchara Al Bouna14511.20
Chris Clifton23327544.44
Qutaibah Malluhi321710.17