Title
Automatic Construction of Generalization Hierarchies for Publishing Anonymized Data.
Abstract
Concept hierarchies are widely used in multiple fields to carry out data analysis. In data privacy, they are known as Value Generalization Hierarchies (VGHs), and are used by generalization algorithms to dictate the data anonymization. Thus, their proper specification is critical to obtain anonymized data of good quality. The creation and evaluation of VGHs require expert knowledge and a significant amount of manual effort, making these tasks highly error-prone and time-consuming. In this paper we present AIKA, a knowledge-based framework to automatically construct and evaluate VGHs for the anonymization of categorical data. AIKA integrates ontologies to objectively create and evaluate VGHs. It also implements a multi-dimensional reward function to tailor the VGH evaluation to different use cases. Our experiments show that AIKA improved the creation of VGHs by generating VGHs of good quality in less time than when manually done. Results also showed how the reward function properly captures the desired VGH properties.
Year
DOI
Venue
2016
10.1007/978-3-319-47650-6_21
Lecture Notes in Artificial Intelligence
Field
DocType
Volume
Semantic similarity,Ontology (information science),Data mining,Use case,Categorical variable,Computer science,Data anonymization,Publishing,Hierarchy,Information privacy
Conference
9983
ISSN
Citations 
PageRank 
0302-9743
0
0.34
References 
Authors
10
3
Name
Order
Citations
PageRank
Vanessa Ayala-Rivera1183.96
Liam Murphy281174.94
Christina Thorpe3539.00