A software platform demonstrator for joint use of evidence theory algorithms and neural networks in fuzzy systems

The diagnostics of a complex multi-stage technical process involves the joint primary data processing to obtain probabilistic characteristics of abnormal critical events or incidents under uncertainty. The paper presents the research demonstrator Status-4 that is a software platform prototype for joint using the evidence theory and neural network methods in fuzzy diagnostic systems. The purpose of the demonstrator development is to create a scientific and technical reserve for ready-to-implement solutions transfer to the next project stages. The demonstrator makes it possible to show the main platform functional components, assess their system readiness level, conduct the platform research tests, perform software implementations testing of the selected and theoretically confirmed methods in various modes, check the functioning operability and efficiency at various parameter values and their combinations quickly. The demonstrator shows the options for the joint application of neural network and evidence theory methods in a hybrid expert system for diagnostics process. In addition, these methods joint application effectiveness is experimentally confirmed in terms of reducing the uncertainty level and increasing the confidence in data level when making decisions. The demonstrator enables minimizing the key risks of creating a fullfeatured software platform for diagnosing and evaluating the complex multi-stage technologies state. The paper provides brief information about the demonstrator functionality, including the technology description and the suppositions description about diagnostic variables influence on pro-cessing performance, loading incident descriptions into the technological database, forming hypotheses about the incidents causes, generating production rules, adapting the parameters of the technology state assessing algorithms using neural network and fuzzy inference. The paper considers the main data warehouse and object model parameters, provides the software implementation and user interface information and illustrates it by examples. It also highlights the used methods features, which allow us to hope for the effectiveness of their joint use in diagnostic systems.