Journal archive
IT management |
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Resource management |
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The task of the management system formation with collective employment of research-production enterprise equipment is formulated. It is theoretical-multitude model proposed. It is on the private cloud base of type iaas with the cloud brokerage the information system architecture proposed that the support of management in conditions of information influence ensured and make possible in a dynamic conditions of activities realization managerial decision to take.
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Performance management |
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This article is dedicated to analytical review of data warehouses technology and loading of heterogeneous data into it. Article describes how OWL ontologies could be used to facilitate operations with heterogeneous data. Our approach extensively uses ontology during loading external data phase and during obtaining analytical data phase.
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IT and education |
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Training technologies |
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The problem of creating and implementing testing technology students in higher education that meets the requirements of saving time-consuming teacher is considered. There are various approaches to practical organization of the preparation, execution and processing of survey results used in different conditions. A modification of the method previously proposed by the authors that improves performance and is based on cloud computing technology is suggested. The results of the practical application of technology are given.
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Software engineering |
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Algorithmic efficiency |
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The paper is devoted to analysis of algorithm to create functional approximation for the target Lipschitz-bounded surjective function via a composition of functions from a given set. The direct search algorithm is introduced at first, then the possibilities of optimization are discussed. After that an optimized algorithm is built. Obtained algorithms are compared on the problem of approximating Mesh network node degree distribution.
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The article is devoted to the development the parallel version of clustering algorithm based on the so-called greedy approach. Technology CUDA developed by NVIDIA is chosen for algorithm parallelization. The code and computing results for the similarity matrices of different sizes are presented.
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Network Technologies |
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The paper presents the analysis of features of programming graphical applications for processing and visualization of large amounts of data with high-performance hybrid computing cluster systems. Considered hybrid architecture of computing cluster, allow to implement of parallelism using CUDA and MPI at three levels: the cluster nodes, multicore and GPU video cards. The approach is proposed to organization of hybrid parallelism estimated its effectiveness by implementing of software complex of visualization synoptic data using hybrid cluster.
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Simulation |
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Theory and practice |
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The need to improve the methodology for simulation studies is justified in this article. Directions of perfection the traditional methodology of complex systems (SSCS) simulation studies based on the paradigm of abstract levels of study are considered. Set-theoretic approach to modeling of SSCS-process is proposed. «Desired» user image simulation tool formulated. Some examples of the new methodology applications are presented in the conclusion of this article.
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Laboratory |
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Decision support systems |
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The task of the calendar planning of complex of associate works is examined in the article. The mathematical raising of task of drafting of optimal calendar plan of associate works is presented. The method of decision, based on the ideas of the dynamic programming, offers. The algorithm of incremental construction of decision is worked out as a count of the possible states with the use of rules of screening-out of not perspective variants, that simplifies realization of method on a modern computer. Work of Algorithm is demonstrated by an example. Information technology of the use of method of optimization of the calendar planning is considered in the system of support of decision-making.
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Covers creating a model set of tools to support decision-making in the management of the strategic guidelines of the industrial enterprises in the face of stochastic uncertainty. Built economic and mathematical models to predict the profitability of the enterprise value of the choice of a particular strategy. The software product, which implements built economic and mathematical models.
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Study of processes and systems |
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Impotence of geomagnetic activity row investigation and some of its features are underlined. Wavlet transform advantages over Fourier transform while analysis of non-stationary processes takes place are recognized. Results of comparative analysis or different wavlet functions to test signals are given. Real geomagnetic activity signals have been investigated and appropriate conclusions are made.
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IT in natural sciences |
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Chemical and physical techniques |
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Integration of information resources on the properties of semiconductor materials developed in different countries is necessary for creation of new materials with the required properties. Federated approach to autonomous data sources integration is suggested. The approach allows the integration of data storage and access of physically distributed data. The data flow model and functional models of autonomous data sources integration are developed.
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Anode grounding modules provide electrochemical protection against corrosion of metal constructions. The functional modeling technique includes sequent decomposition of manufacturing and quality control processes. The functional-technological model describes activities, technological equipment, raw materials, and quality requirements. The complex functional model in IDEF0 notation is presented.
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The article presents the stages of development of special software for the initial registration of radioactive waste, the basic issues of data integration initial registration of radioactive waste storage facilities with the information system of state accounting and control of radioactive substances and radioactive waste.
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Point of view |
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Methodology of science |
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In article the new view on positioning of the theory of creation of systems of situational management as the artificial intelligence one of directions possess mechanisms of generation are described. The foreshortening of an offer sight allowing to reveal the problems which decision made develop- ment of this theory with possibility of creation of program systems of new type.
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