© 2013. Sagar Baviskar. This is a research/review paper, distributed under the terms of the Creative Commons Attribution- Noncommercial 3.0 Unported License http://creativecommons.org/licenses/by-nc/3.0/), permitting all non-commercial use, distribution, and reproduction inany medium, provided the original work is properly cited. Global Journal of Computer Science and Technology Neural & Artificial Intelligence Volume 13 Issue 2 Version 1.0 Year 2013 Type: Double Blind Peer Reviewed International Research Journal Publisher: Global Journals Inc. (USA) Online ISSN: 0975-4172 & Print ISSN: 0975-4350 Bayesian Network Model for Epidemiological Data (Radiation exposure and circulatory disease risk: Hiroshima and Nagasaki atomic bomb survivor data) By Sagar Baviskar College of Engineering Pune, India Abstract - This documentation describes the implementation of Bayesian Network on Hiroshima Nagasaki atomic bomb survivor data, using “R” software. Bayesian networks, a state-of-the art representation of probabilistic knowledge by a graphical diagram, has emerged in recent years as essential for pattern recognition and classification in the healthcare field. Unlike some data mining techniques, Bayesian networks allow investigators to combine domain knowledge with statistical data. This tailored discussion presents the basic concepts of Bayesian networks and its use for building a health risk model on Epidemiological data. The main objectives of our study is to find interdependencies between various attributes of data and to determine the threshold value of radiation dosage under which death counts are negligible. Keywords : bayesian network; data mining; epidemiological data, health risk model, implementation of bayesian network in R. GJCST-D Classification : C.2.1 BayesianNetworkModelforEpidemiologicalDataRadiationexposureandcirculatorydiseaseriskHiroshimaandNagasakiatomicbombsurvivordata Strictly as per the compliance and regulations of: