An intuitive risk factors search algorithm: usage of the Bayesian network technique in personalized medicine

Evgeny D. Maslennikov, Alexey V. Sulimov, Igor A. Savkin, Marina A. Evdokimova, Dmitry A. Zateyshchikov, Valery V. Nosikov and Vladimir B. Sulimov

Journal of Applied Statistics, 2015, vol. 42, issue 1, 71-87

Abstract: The article focuses on the application of the Bayesian networks (BN) technique to problems of personalized medicine. The simple (intuitive) algorithm of BN optimization with respect to the number of nodes using naive network topology is developed. This algorithm allows to increase the BN prediction quality and to identify the most important variables of the network. The parallel program implementing the algorithm has demonstrated good scalability with an increase in the computational cores number, and it can be applied to the large patients database containing thousands of variables. This program is applied for the prediction for the unfavorable outcome of coronary artery disease (CAD) for patients who survived the acute coronary syndrome (ACS). As a result, the quality of the predictions of the investigated networks was significantly improved and the most important risk factors were detected. The significance of the tumor necrosis factor-alpha gene polymorphism for the prediction of the unfavorable outcome of CAD for patients survived after ACS was revealed for the first time.

Date: 2015
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DOI: 10.1080/02664763.2014.934664

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