Bridging unlinkability and data utility: Privacy preserving data publication schemes for healthcare informatics
Document Type
Article
Publication Date
7-1-2022
Abstract
Publishing patient data without revealing their sensitive information is one of the challenging research issues in the healthcare sector. Patient records contain useful information that is often released to healthcare industries and government institutions to support medical and census research. There are several existing privacy models in protecting healthcare data privacy, which are mainly built upon the anonymity of patients. In this paper, we incorporate unlinkability in the context of healthcare data publication, where two new privacy notions namely identity unlinkability and attribute unlinkability are introduced. We design two schemes using the proposed models to address identity disclosure and attribute disclosure problems in publishing healthcare data. Experimental results on real and synthetic datasets show that our schemes efficiently achieve data utility preservation and privacy protection simultaneously.
Keywords
Healthcare, Privacy, Utility, Anonymization, Unlinkability
Divisions
MathematicalSciences
Funders
Universiti Malaya, Malaysia [Grant No: GPF026B-2018]
Publication Title
Computer Communications
Volume
191
Publisher
Elsevier
Publisher Location
RADARWEG 29, 1043 NX AMSTERDAM, NETHERLANDS