Neural Networks in Intelligent Analysis Medical Data for Decision Support Vasyl Sheketa a , Mykola Pasieka a , Nelly Lysenko b , Oleksandra Lysenko b , Nadia Pasieka b and Yulia Romanyshyn a a National Tech. University of Oil & Gas, Ivano-Frankivsk, 76068, Ukraine b Vasyl Stefanyk Precarpathian National University, Ivano-Frankivsk, 76000, Ukraine, Abstract The main purpose of the work was to consider the problem of neural networks and their application, especially for data management and control in the medical industry. The software product, analyzes processing of unstructured and poorly structured medical data reliability, to support decision-making, implements the neural network, was developed and studied from sets of user-defined information flows. On the basis of the scientific task, the program training algorithm was developed, which provides comprehensive support for decision-making based on the study. The developed software application is focused on cross-platform, and the graphical interface is implemented using Java FX. The software product provides a network for the reverse propagation of neural network errors (BackPropagation) and a network of directed random search (Directed Random Search). Designed neural network is trained and further recognizes the type of distribution (uniform, normal) on the specified characteristics, and used the rule "3 Sigma" to generate synthetic data. According to the study, we can conclude that the Directed Random Search learning algorithm, although more complex to implement the search for relevant medical documents, works much faster than the classical reverse distribution. Keywords 1 Neural network, mathematical models, systems architecture, software applications, CEUR-WS Introduction 1.1. Basic concepts of neural networks Artificial neural networks mathematical models, as well as their software and hardware implementation, built on the principle of biological neural networks - networks of nerve cells of a living organism. Systems, architecture and principle of operation are based on analogy with the brain of living beings. The key element of these systems is an artificial neuron as an imitation model of the brain nerve cell, a biological neuron. This term arose when studying the processes occurring in the brain and attempting to simulate these processes. The first such attempt was the McCalock and Pitts neural networks [1, 4, 6, 11, 12, 18, 23, 27, 34, 37]. As a consequence, after the development of training algorithms, the obtained models were used for practical purposes: in forecasting tasks, for pattern recognition, in control tasks, and others [21]. The neural networks can be classified by: Type of input information: analog neural networks (use information in the form of real numbers); binary neural networks (operate with information presented in binary form). Character of learning: IDDM’2020: 3rd International Conference on Informatics & Data-Driven Medicine, November 19–21, 2020, Växjö, Sweden MAIL: vasylsheketa@gmail.com (A. 1); pms.mykola@gmail.com (A. 2); lysenkowa@gmail.com (A. 3); leuro@list.ru (A. 4); pasyekanm@gmail.com (A. 5); yulromanyshyn@gmail.com (A. 6) ORCID: 0000-0002-1318-4895 (A. 1); 0000-0002-3058-6650 (A. 2); 0000-0002-1029-7843 (A. 3); 0000-0002-1029-7843 (A. 4); 0000-0002-4824-2370 (A. 5); 0000-0001-7231-8040 (A. 6) © 2020 Copyright for this paper by its authors. Use permitted under Creative Commons License Attribution 4.0 International (CC BY 4.0). CEUR Workshop Proceedings (CEUR-WS.org)