Private naive bayes classification of personal biomedical data: Application in cancer data analysis

Alexander Wood, Vladimir Shpilrain, Kayvan Najarian, Delaram Kahrobaei

Research output: Contribution to journalArticlepeer-review

Abstract

Clinicians would benefit from access to predictive models for diagnosis, such as classification of tumors as malignant or benign, without compromising patients' privacy. In addition, the medical institutions and companies who own these medical information systems wish to keep their models private when in use by outside parties. Fully homomorphic encryption (FHE) enables computation over encrypted medical data while ensuring data privacy. In this paper we use private-key fully homomorphic encryption to design a cryptographic protocol for private Naive Bayes classification. This protocol allows a data owner to privately classify his or her information without direct access to the learned model. We apply this protocol to the task of privacy-preserving classification of breast cancer data as benign or malignant. Our results show that private-key fully homomorphic encryption is able to provide fast and accurate results for privacy-preserving medical classification.

Original languageEnglish
Pages (from-to)144-150
Number of pages7
JournalComputers in biology and medicine
Volume105
Early online date24 Dec 2018
DOIs
Publication statusPublished - 1 Feb 2019

Bibliographical note

Copyright © 2019 Elsevier Ltd. All rights reserved.

Keywords

  • Data privacy
  • Fully homomorphic encryption
  • Medical information systems
  • Predictive models
  • cryptographic protocols

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