Privacy-preserving biomedical data dissemination via a hybrid approach.
AMIA Annu Symp Proc
; 2018: 1176-1185, 2018.
Article
in En
| MEDLINE
| ID: mdl-30815160
ABSTRACT
Sharing medical data can benefit many aspects of biomedical research studies. However, medical data usually contains sensitive patient information, which cannot be shared directly. Summary statistics, like histogram, are widely used in medical research which serves as a sanitized synopsis of the raw health dataset such as Electrical Health Records (EHR). Such synopsized representation is then be used to support advanced operations over health dataset such as counting queries and learning based tasks. While privacy becomes an increasingly important issue for generating and publishing health data based histograms. Previous solutions show promise on securely generating histogram via differential privacy, however such methods only consider a centralized solution and the accuracy is still a limitation for real world applications. In this paper, we propose a novel hybrid solution to combine two rigorous theoretical models (homomorphic encryption and differential privacy) for securely generating synthetic V-optimal histograms over distributed datasets. Our results demonstrated accuracy improvement over previous study over real medical datasets.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Computer Security
/
Confidentiality
/
Electronic Health Records
Type of study:
Prognostic_studies
Limits:
Humans
Language:
En
Journal:
AMIA Annu Symp Proc
Journal subject:
INFORMATICA MEDICA
Year:
2018
Document type:
Article
Affiliation country:
Estados Unidos