Blockchain-enabled contextual online learning under local differential privacy for coronary heart disease diagnosis in mobile edge computing

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

11 Scopus Citations
View graph of relations

Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)2177-2188
Journal / PublicationIEEE Journal of Biomedical and Health Informatics
Volume24
Issue number8
Online published2 Jun 2020
Publication statusPublished - Aug 2020
Externally publishedYes

Abstract

Due to the increasing medical data for coronary heart disease (CHD) diagnosis, how to assist doctors to make proper clinical diagnosis has attracted considerable attention. However, it faces many challenges, including personalized diagnosis, high dimensional datasets, clinical privacy concerns and insufficient computing resources. To handle these issues, we propose a novel blockchain-enabled contextual online learning model under local differential privacy for CHD diagnosis in mobile edge computing. Various edge nodes in the network can collaborate with each other to achieve information sharing, which guarantees that CHD diagnosis is suitable and reliable. To support the dynamically increasing dataset, we adopt a top-down tree structure to contain medical records which is partitioned adaptively. Furthermore, we consider patients' contexts (e.g., lifestyle, medical history records, and physical features) to provide more accurate diagnosis. Besides, to protect the privacy of patients and medical transactions without any trusted third party, we utilize the local differential privacy with randomised response mechanism and ensure blockchain-enabled information-sharing authentication under multi-party computation. Based on the theoretical analysis, we confirm that we provide real-time and precious CHD diagnosis for patients with sublinear regret, and achieve efficient privacy protection. The experimental results validate that our algorithm outperforms other algorithm benchmarks on running time, error rate and diagnosis accuracy.

Research Area(s)

  • big data, Blockchain, contextual online learning, Coronary heart disease diagnosis (CHD), edge computing, local differential privacy

Citation Format(s)

Blockchain-enabled contextual online learning under local differential privacy for coronary heart disease diagnosis in mobile edge computing. / Liu, Xin; Zhou, Pan; Qiu, Tie; Wu, Dapeng Oliver.

In: IEEE Journal of Biomedical and Health Informatics, Vol. 24, No. 8, 08.2020, p. 2177-2188.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review