ISSN 0236-235X (P)
ISSN 2311-2735 (E)


Next issue

Publication date:
16 June 2019

Articles of journal № 1 at 2018 year.

Order result by:
Public date | Title | Authors

21. A methodical approach to comparison of information aggregation results on highly dynamic objects [№1 за 2018 год]
Authors: S.L. Artyukhov, V.S. Semenov
Visitors: 1374
During information aggregation on highly dynamic objects in a collection and processing hierarchical system, calculations and of data flows asserts selection of aggregation algorithms relevant by characteristics to a state of the environment. In order to provide a selection it’s necessary to compare different algorithms not only by the characteristics, but also by the output. The article makes an analysis of the existing approach and proposes to compare aggregation results by comparison of fuzzy preference relations formed on the stage of revealing object allocation in a feature space. There is a formalization of the approach to comparing algorithms output and the requirements to the index which forms its basis. The idea of the approach is in calculation of the distance between reflections of fuzzy binary preference relations in multidimensional space, which are formed by the basic algorithm and the algorithm under comparison. The paper provides the order of implementation of this operation. The implemented design ratios are justified. The paper presents the composition and the structure of aggregation algorithms comparison software tools. It also shows the possibility of applying the index from the approach as the specification of functional quality of the variant of the aggregation algorithm when comparing it with the reference variant.

22. Evaluation of a degree of impact of access control means on information system efficiency [№1 за 2018 год]
Author: Drobotun E.B.
Visitors: 1515
There are requirements to effective performance of protective functions by protection systems against information and technical impacts and computer attacks. In addition, such systems are required to have minimal influence on protected system functioning and, in particular, on its performance. Ideally, a security system (or means) should not have any effect on the performance of a protected information system. At the same time, it should be noted that it is practically impossible to create a protection system (including the system of access control and delimitation) that would not have any negative effect on a protected object. Therefore, one of the criteria for choosing a system (or means) for access control to protect any information and computing system should be the criterion of the minimum effect of the chosen access control system on the performance of a protected information system. The article proposes the evaluation technique of information system performance degradation at introduction of access control means to it, which are one of the most important components of an information security system for information systems. The paper also describes software that helps implementing the offered technique.

23. Cost estimation in software projects design using the mountain algorithm [№1 за 2018 год]
Authors: Zubkova T.M., E.N. Natochaya
Visitors: 1666
Cost estimation in software development allows reducing the probability of making incorrect or not making necessary management decisions, the probability of obtaining unplanned results of software projects. The article performs the analysis of basic approaches to the problem of software projects cost estimation: the linear approach, the method of function points and using empirical data. The paper proposes the technique of cost estimation in software projects design based on the mountain algorithm. The paper describes mathematical support and software to solve the problem. The task is implemented according to the application composition model and the early design model. To estimate software project costs it is offered to record the price of programs according to their group of complexity. The paper considers three groups of software products complexity: simple (design takes up to 4 months), average (design takes from 4 months to one year), high (design exceeds a year). The paper explains the use of the mountain clustering method for combining software products in groups based on a similarity of signs. Based on the offered method, the software system of software projects cost estimation is developed in order to increase objectivity and efficiency of the decisions made by developers. Input data of the software system are a structure of an enterprise, a specification, a table of estimates of software product elements, the Boehm table. The algorithm of a mountain clustering acts as controlling influence. The resources supporting execution of software system functions are hardware and software of the company. At the system output, the report on costs of software product design is created.

24. Algorithm and software of automated process control system with established product parameters [№1 за 2018 год]
Authors: Niyonsaba T., V.A. Pavlov
Visitors: 1222
The quality of a product, which was manufactured during some technological process, is evaluated using its input parameter values. For example, the main fermentation process creates beer, its readiness is characterized by the quantity of alcohol, acids, alkali in beer wort, extract content value, etc. The dynamics of product parameters changes is often different or mixed, external influences are unpredictable, so control of such processes is a complex scientific problem. It is particularly difficult to predict parameter values for a specified time, as well as to determine the technological process completion time taking into account the impact of external factors and controlling action of the automated process control system. The paper presents the developed models and algorithms, which can be used by the automated process control system with es-tablished product parameters. The paper focuses on the problems of predicting product parameters dynamics, as it largely affects the product quality and its manufacturing time. The paper proposes the scheme, algorithms, models and units of the automated process control system based on the Kalman fil-ter. User screen forms and the displayed information of each unit is also presented. The algorithm is implemented in a high-level programming language C#.

25. A model of modification of intelligent agents types in the AnyLogic system dynamics methodology [№1 за 2018 год]
Authors: Mutovkina N.Yu., Semenov N.A.
Visitors: 1654
The article considers the model of changing a psycho-behavioral type of intellectual agents during information interaction. Information interaction is carried out when the agents solve some creative problem. According to the results of the study, each agent, which is involved in solving a complex creative problem, strives to influence other agents in order to attract them to its side. During the interaction of agents, the psycho-behavioral type of many of them changes. A compromise type is the best for successful operation of a multi-agent system. Agents with a compromise type are always ready to sacrifice their own interests for the sake of a common goal. Such agents are constantly in search of a better solution to the set task. They have a minimal need to engage in the fight for resources, provided that the latter are sufficient and there are possibilities for resolving conflicts. However, the existence of other types of agents also can not be disregarded. The positive influence of agents of a compromise type on agents of the forcing and deviating types leads to their change to a compromise psycho-behavioral type. The minimum number of forcing and evading agents in the system ensures the greatest effectiveness of a multi-agent system, the quickest solution of a creative problem. The model of agent interaction, leading to the change of their psycho-behavioral type, is developed based on the AnyLogic system dynamics methodology. The original experiments allowed determining the magnitude of the influence of administrative actions on the behavior of agents of each type. System dynamics here was a quantitative tool that allows analyzing the cause-effect relationships within a multi-agent system.

26. Source code model construction for software defect detection with type systems [№1 за 2018 год]
Authors: L.V. Tsvetkov, A.I. Spivak
Visitors: 894
Quality assurance is an integral part of software development. Software defects are among the few components that can be mitigated using static code analysis. One of the forms of static analysis is static type checking. Most programming languages use type systems to reduce the number of software defects. Unfortunately, type systems of most programming languages are incapable of representing basic safety guaranties against exceptions. To allow extension of existing systems of imperative languages, it is necessary to create a source code model that considers a number of factors, such as an alterable state, pointer aliasing and others. The paper describes a source code model that represents security invariants and allows effective use of extended type systems to locate vulnerable code locations. The proposed solutions of aliasing and alterable state problems are based on using a static single assignment form with applying several rerecording rules. This rules maintain functional equivalence of programs enabling use of principles that are already used for analyzing functional-style programs. The paper considers the notion of linear resource, related problems and possible solutions within the proposed approach. Principles of dependent types indexing are shown by example of a continuous data array. The proposed model extends type system of a given programming language. Construction of such model with extended type system does not require additional code annotations, minimizing labour costs needed to preform analysis on the exist-ing code base.

27. Algorithms for gamma radiation sources identification [№1 за 2018 год]
Authors: A.E. Davydov, I.K. Fomina, B.B. Nikolsky
Visitors: 1474
The article considers the problem of transition from analog to digital ionizing radiation recorders. It also analyzes multiobjective hardware tasks and characteristics of digital data processing application and microprocessor control, as well as common types of gamma-radiation detectors based on Geiger-Muller detectors and detectors crystal based on scintillators. The paper determines the process task of applying portable gamma-ray detectors. The authors propose software and hardware solutions for applying microcontrollers and creating instruments for radiation situation analysis and assessment, gamma radiation detection and identification. They also present the mathematical and algorithmic solutions implemented in control systems of ionizing radiation detection units. The paper shows the advantages of using digital control systems based on microcontrollers as part of ionizing radiation detection units. There is an algorithm for correcting a detector counting characteristic based on Geiger-Muller counters by calculating correction coefficients of counters. The paper shows the results of experimental evaluation of algorithms of gamma radiation sources detection. There are recommendations on creating an effective instrument detection framework consisting of algorithms for measurement of dose rate and identification of a gamma radiation source. The authors discuss technical solutions for the implementation of new ways of processing data from gamma radiation detectors. The paper proposes a solution for identifying ionizing radiation sources by a software-mathematical method. There is an analysis of two algorithms of identifying gamma radiation sources based on the window method of analyzing spectrometric information. The authors investigate the problem of false positives of the considered algorithm. They propose some options of optimization of the considered identification algorithms to reduce the number of false positives.

28. The study of the variation coefficient distribution in problems of test statistical analysis [№1 за 2018 год]
Authors: Agamirov L.V., Agamirov V.L., Vestyak V.A.
Visitors: 1841
The paper considers the problem of exact distribution of the variation coefficient, the statistical characteristic used for analyzing random variable measurements, the fluctuations in technological processes for production of materials, semi-finished products, machine parts and structural elements, as well as for studying scattering of mechanical properties, es-pecially under variable loads. The importance of the variation coefficient is also determined by the fact that it is one of the design parameters for justification of reliability, durability and life. Safe operation of machines and structures largely depends from the reliable determination of this coefficient. The exact distribution of the variation coefficient for normal population is obtained based on the well-known theorem on the distribution function of the ratio of two random variables. In this case, it is a sample mean square deviation having the chi-square distribution and the sample mean with the normal distribution law. The obtained exact formulas for the variation coefficient distribution were verified by multiple statistical modeling by the Monte Carlo method, which has confirmed the accuracy of analytical calculations. In order to simplify practical calculations, the authors consider an approximate model that has shown an error of no more than 1,5 % for observational volumes from 3 to 20. The paper considers the estimation examples of confidence limits, failure-free operation probability and other reliability problems based on the obtained solutions.

29. Tools for determining a linguistic-statistical affinity of languages using the turkic morpheme model [№1 за 2018 год]
Author: A.B. Almenova
Visitors: 1645
The article proposes a new approach and tools for linguistic-statistical comparing of Turkic languages affinity using the Turkic morpheme model. This model is a structured description of Turkic morphemes, which consists of morpheme properties and their manifestation contexts at all language levels (phonological, morphological, syntactic and semantic) [3, 5]. The tools determining the linguistic-statistical affinity of Turkic languages is implemented as a web resource that processes information about the language represented in the morpheme model database. Comparing the affinity of languages by linguistic-statistical methods using the Turkic morpheme model can be made at different lan-guage levels: morphological, syntactic, lexical. The paper describes four following methods: comparing the number of affixational mor-phemes corresponding to a grammatical category; comparing the number of allomorphs in one morpheme; comparing the joined-up and separate writing of morphemes; comparing the order of affixational morphemes within the word form. Nowadays the model database is filled up for Tatar, Kazakh, Crimean Tatar, Turkish and Uzbek languages. It allows comparing linguistic-statistical affinity of the languages in pairs. The proposed method can be used to compare language morphologies to obtain information on the affinity of dialects to a literary lan-guage, as well as to detect the affinity of one language dialects to dialects and a literary language of other languages. Our methodology and tools can be used not only for Turkic languages, but for any closely related languages of the agglutinative type.

30. The concept of development a training aids complex for assimilation of weaponry, military and special equipment [№1 за 2018 год]
Author: A.F. Khalin
Visitors: 2454
The study of the problem of technical support for professional training of military specialists revealed a contradiction between the need to improve the efficiency of assimilating weaponry, military and special equipment and the lack of the required material and technical conditions. This contradiction is caused by existing economic constraints, as well as also the lack of an effective mechanism for optimizing design parameters of training aids. Training aids are complex technical systems, therefore the process of creating such systems depends not only on the constructive properties, but also on the formulated requirements of designation. Thus, it is impossible to solve the problem of investigating the effectiveness of an operation using the measurement method on the target stratum. As a result of analyzing the basic terminology and classifying in the field of a product quality indicators system, the “man-machine” system, training aids, its imperfection is established. It contributes to distortion of target installations during design. Common shortcomings in the process organization include an insufficient volume and quality of activities of ergonomic support and military-economic justification. All this leads to a tendency of reducing the target and economic effect. As there are no unified approaches to the development of training aids, the cost of implementing various versions of an educational information model for training specialists, who carry out their activities in the same type of human-machine systems, may be very different. Thus, the development of scientific and methodological provisions for justification of the system, which implements program-objective principles and measures to achieve the required quality of the activity of human-machine system operators, which also provides operative determination of parameter boundaries of the objects under development at the conceptual stage of research, the creation of an operational information system acquires the status of the problem, the solution of which affects the effectiveness of the development of weaponry, military and special equipment. The directions of solving the problem of organizing the process of developing training aids require the availability of methodological, organizational and technical components. The concept, which is developed in order to increase the effectiveness of the process of creating training tools, is detailed in the paper on the stratum of training aids for the development of Army missile systems.

← Preview | 1 | 2 | 3 | 4 | Next →