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When we carry out inference automation, the time required to complete the inference procedure is very important. The shorter the time, the more effective the procedure. If we carry out the logical inference procedure manually, then we make a choice of a sequence of steps. In this case, the person takes into account the specifics of the problem being solved. It does not act formally, but taking into account the substantial meaning of predicates. If we are going to shift the inference procedure to a computer, then w...

There are many problems related to image processing and analysis that could be solved using convolutional neural networks (CNN). It's easy to implement CNN using one of thousand high-level programming languages. Such CNN will not be fast and energy efficient enough to be used in real-time systems. The good way to solve this problem is to use special hardware accelerators (neuroprocessors). The paper shows that it is possible to reduce the calculation time of the network using neuroprocessors. The implementation of...

It is well known that the process of inference is generally non-deterministic. Therefore, to develop effective inference algorithms, the problem of managing the inference search is very relevant. The solution to this problem is complicated by the fact that the predicate calculus is unsolvable. There is no method for establishing general validity or its absence for an arbitrary formula for calculating predicates. Nevertheless, if the formula for calculating predicates is valid, then there is a procedure for establi...

A professional aviation meteorological service has been established in the territory of the Slovak Republic, the stations of which are unevenly distributed and do not cover the whole territory of Slovakia for information purposes. The addition of meteorological stations, whether mobile or installed at general aviation airports, would largely eliminate the occurrence of such "gray zones" without information coverage. Inexpensive meteorological stations installed at general aviation airports will help to solve the m...

The report presents the results of studies of the characteristics of the deformation signal during the preparation of regional earthquakes according to laser deformation measurements in the adit of the Talaya seismic station (Baikal region). Studies have shown a number of features during the deformation process on the eve of regional earthquakes. The deformation data recorded on the seismic station (? = 51°40`48``N, ? = 103°38`24``E) during the period from 1994 to 2015 were used as experimental material. During th...

The purpose of this paper is to study network simulation and modeling software and determine which tools are most suitable for designing a corporate computer network of commercial enterprise. The permanent improvement of automation tools, the integrated implementation of information processing and transmission systems in the enterprise structure require knowledge of all the advantages and disadvantages of new technologies to the smallest detail, the ability to use them as intended and, most importantly, effectivel...

The aim of this article is to create a risk analysis of selected school facilities which can be an auxiliary tool of security solutions against terrorism. Most terrorist attacks are focused on so-called soft targets - crowded places, which are not secure against violent attacks. Furthermore, attacks on school facilities abroad are frequent too. A wellprepared risk analysis is a necessary method to detect weaknesses and strengths of the security of a soft target. The university in Zlin in the Czech Republic was cho...

The paper presents our findings during the adoption of e-learning in the National Geoinformation Center of Bulgaria (NGIC). It details the approach used to build a set of functionalities that produce and deliver online educational products to the customers of NGIC. The Center is a consortium of the national providers of Earth observation data with a purpose to design and co-develop integrated information products. NGIC's information system is being developed since 2019. It is built adopting the IT service manageme...

In the precursory section of the paper, the authors succinctly present the Black Sea basin's oceanographic features with a focus on factors that can lead to naval accidents. The Black Sea basin is characterized, especially in winter months, by sudden storms, big waves, and winds, seriously affecting the ships and crews' safety. The said basin has also confined areas with pleasure crafts and commercial ships, offshore platforms with accompanying auxiliary fleet and underwater pipes and installations or shallow wate...

Continuous measurements of deformations of the Earth's crust make it possible to record changes in their character in several characteristic parameters. Such parameters include the amplitude, phase, and frequency of periodic oscillations, for each characteristic frequency separately, as well as random typical or atypical artifacts. All this information with proper processing can be used for various purposes, one of the most important tasks in this case is to reliably identify earthquake precursors. These studies r...

In today's world, shopping represents a significant part of everyone's life. The interaction between the customer and store staff has grown to be more critical than ever. To facilitate a pleasant and engaging shopping experience, we acknowledge a market gap and a real competition for developing innovative tools that can be used by both parties: the customers, which need their requirements fulfilled, and the store staff, that can use these tools to satisfy customers' needs further by targeting the correct audience....

Currently, particular attention is paid to the study of connection between geophysical phenomena and technogenic processes. At the same time, the structural parameters of the Earth?s internal structure and its core, change in natural characteristics of water basins as well as dynamics of oil and gas deposits are being investigated. This paper describes a new method for studying geophysical phenomena depending on the state of large water basins. With this purpose, we conducted a correlation analysis between astrome...

Geodynamic processes and seismic activity are considered to be the prime driver of horizontal and vertical movements of the Earth's crust in the Balkan Peninsula. One proven method for continuous monitoring of ground deformations is the use of data from active radar remote sensing. These data are the basis for the creation of interferometric images (IFIs) for quantitatively assessment the recorded ground movements of the Earths? surface within a fixed time interval. For this research a set of IFIs were created for...

Machine Learning (ML) is the study and the usage of the mathematical algorithms which can improve their performance without the need for human interaction. These algorithms are considered as a subset of Artificial Intelligence (AI). Machine learning algorithms use past data as input and produce new predicted values as an output. Machine learning algorithms have been used in many areas for solving an innumerable number of tasks. However, the various tasks need applying of different machine learning algorithms for o...

Ensuring the transition to advanced digital, intelligent manufacturing technologies, robotic systems, new materials and design methods, the creation of large data processing systems, machine learning and artificial intelligence are directly related to the widespread implementation and use of cyber-physical systems. One of the key technological trends that underlie cyber-physical systems is big data processing, process analytics, the introduction of the Internet of things, and improving information security. Most o...

The data warehouse in the information system is intended to reflect the changing part of the domain model. In classical information systems, this part includes data values, and the storage, implemented as a database, and the system itself can be considered static in time objects. Modern conditions for the functioning of information systems are characterized by the requirement for the possibility of modifying the functionality of the system at the stage of its operation. In this regard, not only data values, but al...

The article presents methodological approaches to the improvement of the environmental monitoring system. To increase the objectivity and to improve the visual aspects of data presentation during ecological monitoring, the authors proposed to involve remote sensing methods of the Earth and geoinformation technologies. The presented set of methods is effectively used for general, operational and background monitoring. The authors have developed an algorithm for monitoring the state of ecosystem components by remote...

The aim of the presented paper is to give a review of the classification of atherosclerotic plaques between two different input values; using computer image analysis and a visual assessment by an experienced sonographer. In the case of computer analysis, the echogenicity index (Echo-Index) is used. In the case of visual assessment, echogenicity of the plaques have been evaluated from histological patterns. In the case of computer image analysis, B-images have been processed. To computer image analysis, our develop...

The paper discusses issues related to the optimization and improvement of the quality of the process of developing information systems. In particular, the purpose of this work is to study the process of analyzing the activities of an enterprise. This work conducted a study on methods for extracting information about the activities of the enterprise. The study is showed that there is a set of methods to analyze the activities of the enterprise. Methods such as a round table, brainstorming, interviewing, observation...

We offer the conceptual model of the hybrid geographic information system built by using Kubernetes, Docker containers and cloud computing. Within the study, we conducted stress tests and velocity measurements in virtual environments. Applications deployed in containers show better performance when one needs to simultaneously run the same type of isolated compute nodes. The experimental results clearly demonstrate the advantage of using Kubernetes with Docker containers to build such systems, especially in case of...

This work aims at the creation of digital selenographic satellite maps (DSSM) using fractal geometry and multi-parameter harmonic analysis. The observational data for DSSM were produced by the ?Clementine?, ?Kaguya? and ?LRO? space missions. An electronic database on altimetry measurements was built and they were brought into the single reference system by robust modeling. Based on the produced data and the method of multi-parameter harmonic analysis, we developed a digital selenographic satellite map covering the...

In modern studies, the idea is formed that the system approach is a conceptual design, the background in which one of its forms is fixed in the form of a system and its basic abstraction. The existing specific types of systems and their basic abstractions are the result of empirical fixation of ideas about the system approach, fixation of the formed concept of the system approach in the form of one of the types of system forms: "... the representation of an object in the form of a system is nothing more than a tra...

This work focused on study fractal structures on Venus is performed on the basis of observations taken by the ?Magellan? spacecraft (NASA). The equipment of this artificial satellite allowed scanning almost the entire surface of Venus using a radar with synthesized aperture of S-band (12 cm) and a microwave radiometer as well as investigating topography by the special radar ? altimeter. The uncertainties in some data produced by ?Magellan? were filled by the information that had been collected before ? in ?Venera ...

Following the international procedures, aviation professionals are required to prove very high psychological and physical standards. There are plenty of factors which might affect a performance of aviation employees. A working environment of aviation personnel is constantly changing, and this variability of their tasks escalates a lot of stress, which further affect safety and quality of flights. There are a lot of stress relieving techniques exercised by pilots, prior they take off. Some of them are selfregulator...

One of the main processes of functioning of digital measuring systems is image analysis. For photogrammetric systems, such tasks involve searching, counting the number of objects of a given type, followed by determining their geometric characteristics. The main problem that impedes the direct application of methods is the provision of a given level of measurement error. Methods, depending on their specific combinations and input parameters, can give different results. This is due both to the quality of the image i...

Analysis of social networks is one of the promising areas of research. In addition to the development of a mathematical apparatus that allows processing the extracted data, it is of interest to identify new characteristics of user interaction. In the case of researching social networks, one of the important problems is the definition of a digital portrait of a user based on the consolidation and preliminary processing of open data from his profiles. To solve this problem, the authors previously proposed a model fo...

The article considers the issues of evaluating the quality and effectiveness of an information resource with Internet access dedicated to memorable places associated with the residency of famous Russian personalities. The authors noted that one of the problems is choosing the indicators and evaluation criteria that characterize the effectiveness and efficiency of museum activities, as well as the impact of museums on society. The following main functions of museums are highlighted: collection, preservation and doc...

The use of a qualified electronic signature has become more widespread in recent years, and one of the main prerequisites for this is the development of electronic services using a qualified electronic signature for authentication. Some of the services require additional entry of a username and password and they show that a qualified electronic signature complements the security of authentication by becoming the so-called "Second factor". All services provided by a qualified electronic signature in the browser are...

The article examines the issues of virtual reconstruction of memorable places associated with residency and activities of V.F. Voyno-Yasenetsky (Saint Luke the Surgeon) in the city of Tambov (Russia). Valentin Felixovich Voyno-Yasenetsky (1877-1961) ? a religious figure, archbishop, famous Russian and Soviet doctor, doctor of medical sciences and theology, winner of the Stalin prize of the first degree. In order to visualize individual objects of memorable places in Tambov, their three-dimensional virtual reconstr...

Most of the time, in assessing a situation where a leakage of combustible gas is involved, the volume of the room where the release occurs and the volume of the released gas is taken into account, thus resulting in an average concentration of the fuel gas applied to the entire volume of the room. In some cases, when the source of combustible gas is close enough to the source of initiation, or when air currents converge at the location of the source of initiation carrying amounts of combustible gas, the explosive m...

Application of image processing recognition in the agricultural field is a difficult and intensive task. Recent years developments of technologies such as GPUs (Graphics Processing Units) and the fast development of artificial intelligence algorithms allows the reliability of using computer vision technology to be used for recognition of plants, including weeds, ensuring the efficiency of intelligent agricultural systems. Computer vision technology uses a camera and a computer to identify and measure objects in th...

Academic rankings can be referred to as a tool of external evaluation of university performance, and a crucial role that the rankings play now in government decisions to fund university research around the world is undoubtful, despite all the ambiguity and skewness of rankings methodologies. Having said that the publication productivity and citation impact are important criteria of rankings evaluation, not only university management needs to be sure that the rankings trajectory is well applied, or incorporated int...

In this publication, we summarize, systematize and analyse data collected for studying the use of HTTPS in the public sites of banks in Bulgaria and Serbia. The scope of the study is limited to the public site of the particular bank. We examined the web sites of all 20 banks licensed in the Republic of Bulgaria and 27 Serbian banks licensed by the Serbian National Bank at the time of the survey. The survey excludes the foreign bank branches operating in the respective countries. The main objective of the study is ...

In this paper, a computational method to predict the dimensional changes in some powder metallurgy materials is used. The samples prepared from pre-alloyed iron base powders produced by atomization (< 45, 45-63, 63-100, 100-150, >150?m) were the materials analyzed in this paper. The analyzed powders were compressed in a mold using uniaxial pressing at 400 and 600 MPa with the disc dimensions of ? 8 ? 6 mm. The sintering temperature was approximately 1.150 °C for 60 and 90 minutes. The density in green and sintered...

A generalized spectral-analytical method (GSAM) for analyzing data of various physical nature has been developed. It is based on the generalized Fourier representation of the original experimental and model digital arrays. In this report, it is used in the implementation of a resonant-impedance method for diagnosing and studying the characteristics of mechanical systems (in particular, linear one-dimensional acoustic systems with local anomalies). In the framework of this approach, the anomaly (damage) of the syst...

Vulnerability may be considered one of the most important components of the seismic risk, as it is the only one that human society may act upon in order to reduce the risk. As seismic vulnerability implies multiple dimensions, from the physical one to the social and economic ones, a multi-criteria decision-making approach proves to be appropriate for its assessment. The uncertainty inherently involved in the assessment process is addressed using fuzzy logic theory. This paper aims to assess the seismic vulnerabili...

E-commerce involves the processes of selling and buying goods and services through the use of modern communication technologies and the Internet. The success of this form of commerce largely depends on the website through which the sales are carried out. Modern online e-commerce platforms are sophisticated applications that perform multiple functions. They are both a marketing tool that attracts customers, dynamic systems that allow interaction with the users, and the realization of transactions and a portal with ...

An urgent problem in the design of adaptive training complexes (ATC) is to find the optimal set of visualization tools and technologies. Currently, there is a wide variety of visualization components on the market, so it is impossible to choose the best solution at the moment. At the design stage, the traditional expert approach is currently the most widespread. However, it is subjective, not accurate enough, and the resulting solution is not always optimal. Therefore, this article discusses the method of selectio...

Within the framework of this work the solution of the problem of synthesis of adaptive electronic document management system (EDMS) is considered. An important problem of modern information systems is their personalization to the individual characteristics of users. This improves their efficiency, flexibility, convenience and productivity. To solve the problem of synthesis of adaptive EDMS proposed algorithmic and mathematical support, the original concept of information system architecture and the use of machine ...

Today, under the conditions of negative effects of the influence of natural and, especially, anthropogenic factors on the natural environment, automated systems for monitoring the state of the environment are spreading. The purpose of the work is to develop an analytical decision support system based on the results of forecasting indicators of surface water pollution of the city Lviv. To analyze and forecast the indicators of surface water pollution in Lviv, a trained neural network was created using the Python pr...

The objective of this work is to present the implementating of an employees? performances assessment process in the Heating-Ventilation-AirConditioning (HVAC) department of a ship design company, using the multi-criteria decision method. It is useful and important to optimize this process in the ship design companies because at present the way how to carry out the performance assessment can lead to a series of important errors such as: error of dispersion and of central tendency, error of "logical" evaluation, hal...

The article presents the results of one of the stages of research, the purpose of which is to increase the speed of video data transmission from a source to a processing center. It is shown that one of the approaches to achieve the given goal is to reduce the amount of information for transmission through the partial transferring of frames of the video stream. This possibility is provided by the three-dimensional representation of blocks of frames in the form of a bit cube, which described in the article. The idea...

Last decades witnessed a significant increasing in energy consumption in data centers and server rooms. More powerful equipment and more complex IT services have been driving to more power demand. Since infrastructure and energy costs in data centers have become a central factor in IT management, a range of technologies has been developed to increase energy efficiency. New hardware and power management options support energy saving strategies. An appropriate procurement plan is essential for building an efficient ...

The article presents the results of the analysis of the dependence of the effectiveness of requests submitted to scientific competitions from the criteria for their evaluation. Statistics of requests submitted to external competitions from ITMO University was obtained from the implemented automated system for requests recording. This system performs the functions of formation of the register of requests of the organization, and also allows to check the requests for their compliance with the requirements of the sel...

Given the geographical extent of Russia, its highways play a crucial strategic role. Combining territories through the mass transfer of freight and passenger traffic and providing access to various resources, the road infrastructure facilitates the development of the constituent entities of the Russian Federation. At the same time, any unsolved problem seriously hampers the economic development of both the country and its regions. Waste during the maintenance of roads is generated during their operation as a resul...

The paper deals with the actual problem of assessing the quality of video content transmission in modern wireless networks. A review and analysis is made for the quality level of the currently most popular protocols and technologies for transmitting video content in wireless networks. It analyzes video content transfer technologies based on the HyperText Transfer Protocol (HTTP), namely HTTP Progressive Download (HPD) and HTTP Adaptive Streaming (HAS). For HTTP Progressive Download and HTTP Adaptive Streaming tech...

Network slicing is one of the key features of fifth generation (5G) system. Network slice is a virtual network including Radio Access Network (RAN) and Core Network (CN). The most typical scenario of utilization of network slicing is the setup of multiple slices within a single operator in order to cope with different User Equipments (UE) and service requirements. In alternative scenario, network slicing may be provided as a service, i.e. network slices may be setup and modified by 3rd parties. Currently network s...

Large arctic projects, both on land and at sea or in coastal zones, have to include the management of natural risks using the tools of geo- information support of decision-making, as part of geo-information management for territorially distributed systems. We consider the development of a system for monitoring the versions of data within geo-information support for Arctic projects. Data can come from different sources, including satellites. Then obtained data are combined into a single network (cluster) to create ...

The article brings knowledge from the theory of transport systems. The aim of this article is to propose a mathematical model for the calculation of combined airline systems. Air carriers, when choosing a network type, decide mostly between the two basic types, which are ?Hub and spoke? or ?Point to point?, or their combinations. The choice of network type depends on a number of criteria, in particular the business model and the product offered, which distinguishes Low-Cost Carrier from Full-Service Carrier. Full-...

The objective of this research is to analyze the multifractal behavior of geomagnetic field corresponding to the well-known 27-day variation (solar rotation period) and its harmonics and the 1-day (solar diurnal) periodicities. We discuss the multifractal behavior of geomagnetic variations recorded at the middle latitude stations, using wavelet transform modulus maxima (WTMM). The WTMM is capable of partitioning the time and scale domain of a signal into fractal dimension regions, and the method is sometimes refer...