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Recognition of the numbers is a necessary condition for the development of 3D street viewers. Using information about the position of the viewer relative to the detected site by self-driving car will make it possible to adjust the path and increase the accuracy of its implementation. The unmanned device (unmanned aerial vehicle or self-driving car) is equipped with a video camera or camcorder system. In the process of detecting house numbers, the image from the camera contains noises and redundant information. The...

The work is devoted to the development of an approach allowing us to visualize complex infrastructure networks. The results of testing various layout algorithms on the plane of the graph representing the complex infastructure network are presented. The method of automatic graph layout is offered, which allows to efficiently perform the layout of a graph of a large-scale infrastructure network. The method of clustering the graph of the infrastructure network, taking into account the strength of the branches and the...

This work initiates a study toward developing and applying computation models of cyber-physical systems on the basis of hexagonal lattice. The focus is on mathematical description of continuous population dynamics combined with dynamic logic used for discrete events. First, we introduce a class of lattice differential equations with time delay simulating interactions within hexagonal pixels. Spatial operator is modeling diffusion-like interaction between hexagonal pixels. We then use the syntax of dynamic logic to...

In the work there is offered approach to determine index of quality of city environment which is used for development of master plan of a city. As an example of application of this methodology there is considered the project of master plan of Ternopil with help of geoinformational system. Over the past two decades the cities of Ukraine are undergoing a new phase of their development, which is associated with a radical change in the economic system (the transition from the planned management to a market economy) wi...

Recent online translators for languages without a significant number of speakers cannot reach the quality of the translators for languages such as English, Spanish, and French, etc. The great number of users of these common languages means a higher possibility of correction of an inaccurate translation. For those languages with around ten, twenty million speakers, translators cannot gain such effectivity. All the documents produced in the EU must be translated into all the languages of the EU. Translators that hav...

In the last decades the energy consumption of data centers has increased exponentially. The high energy consumption is due to power consumption of the IT resources, to the cooling system and to the inefficient usage of the resources. From the total power consumption in a data center one half is consumed by active servers and another half is consumed by the cooling system, network of the data center etc. There are several techniques for increasing the efficient usage of the resources in a data center. One of these ...

The paper considers the problem of velocity model reconstruction of an elastic medium in the problem of monitoring the zones of underground nuclear explosions. The inverse problem can be solved with help of finding solutions for a set of forward geophysical problems. Main problem is to find the location coordinates and treat to find the characteristic size and shape of cavernous object in entire isotropic elastic media. To realize it the problem statement and the description of basic methods to perform full seismi...

The significant centres of settlement on the territory of the Czech Republic have also their suburbs aside from their core areas (centres). The dynamics of outflow of population from city centres to suburban areas influences significantly the global character of a city as such. The influence of suburbanization is currently evident in all larger residential centres. The urbanization of rural population and the extension of administration boundaries of cities lead to distinguished and mutual interaction of the neigh...

The article deals with the design of an alternative meteorological network, whose inexpensive metering devices would be installed on non-specified mobile means or at general aviation airports to collect selected spatial data. It analyzes the need for a minimum level of equipment for meteorological measurement systems to ensure the professional collection of analysis and visualization of specific spatial data. The process of analyzing the collection, analysis, and visualization of specific spatial data will also be...

The paper solves the actual problem of assessing the quality of data transmission over atmospheric optoelectronic communication lines in computer networks. The topologies of the simplex infrared data transmission channel are analyzed. The calculation of the optical system is reduced to determining the fraction of the radiated infrared power that falls on the photodetector. The total loss of the optical information signal is determined due to the mismatch of the parameters of the transmitter and receiver of the inf...

The quality of life is one of the frequently discussed topics nowadays, not only in the academic sphere but also within the international policy-making institutions. In the past decades, dozens of complex methods for assessment of the quality of life have been developed. Different approaches can be applied regarding the quality of life evaluation. For many applications, a simple evaluation combining both the subjective and objective information and oriented on the ?life results? (means indicators of the good life)...

The paper considers the problem of velocity model reconstruction of an elastic medium in the problem of monitoring the zones of underground nuclear explosions. The inverse problem can be solved with help of finding solutions for a set of forward geophysical problems. Main problem is to find the location coordinates and treat to find the characteristic size and shape of cavernous object in entire isotropic elastic media. To realize it the problem statement and the description of basic methods to perform full seismi...

Regular measurement of rock deformation processes makes it possible to make judgments about the nature of the deformations of the Earth's crust, as well as the likely precursors of earthquakes near the area where these data are obtained. Therefore, the continuous operation of measuring devices that record such deformations is extremely important. When measuring by laser methods in a normal atmosphere, the distance of measurements can be significant, up to 25 meters and higher. The disadvantage of such measurements...

Optimization is an iterative iterative process of improving the distributions of distributed computer applications obtained through the reengineering process so as to ensure the efficient allocation of resources for the implementation of the stages included in the reengineering. The article mentions how to choose each new goal and studies the model already implemented to start the project. It starts from the design of the existing application, and then applies the succession of stages specific to re-engineering. O...

3D modelling of the geology formations of the earth is an essential step towards understanding of complex geological phenomena and must be based on the whole of knowledge and available data for the study area (digital terrain models, geological and geophysical maps, sections, drill-holes and geological interpretation). 3D GeoModeller software made by Intrepid Geophysics Co. was designed to assemble together into the same 3D space data from various sources, in order to ensure geometrical coherence. For interpolatio...

The information system interface consists of various elements. Attention of the user decreases when working with a large amount of information. The authors suggest that it is possible to implement recommendatory (adaptive) modules for users, using changes in the graphical part of the interface. Such changes are called interface personalization. Personalization allows you to focus the user's attention on the most relevant elements of the user. To reduce the resource consumption of recommendation modules, it makes s...

This article describes the key features of the automatic speech recognition systems training process that can be used in a work of chat bot or voice assistant. Importance of research in this area is grazed. Difference between chat bot, voice helper and voice assistance are explained. Basic requirements for correct chat bot usage are formulated. Some common automatic speech recognition systems are reviewed. Kaldi and CMU Sphinx has been used as an open source systems? example. The whole installation and training pr...

In this paper, the artificial neural network (ANN) technique is used to predict the wear resistance e under dry sliding conditions of some iron-based powder metallurgy materials subjected to a thermochemical treatment. The analyzed specimens were obtained using the conventional powder metallurgy route: mixing the raw powders with 1% zinc stearate, cold compacting at a pressure of 400 MPa and sintering at a temperature of 1150°C for 60 minutes. Following the sintering step, the specimens were subjected to carburizi...

Accessibility to urban facilities and public services is nowadays one of the key factors that impacts the quality of urban live. That being said, accessibility is a complex concept, which although in common use, has a range of meanings, and measuring it raises numerous methodological problems. For instance, accessibility is closely related to the concept of distance, but as a society evolves, other factors such as travel time, economic cost, different transport options, interest or attraction of the destination co...

Petri nets is the well-known mathematical tool for the modeling and verification of parallel systems of all kind. Multiprocess Petri multinets with time stamps (MPTSM) are the newly introduced class of low-level Petri nets, whose definition and the properties are the main topic of this article; they generalize the properties of P/T Petri multiprocess multinets in the area of design, modeling and verification of generally parallel programming systems with the discrete time. The MPTSM with the support of the ASYNC-C...

Process and plant design need to be continuously improved, the use of new safety concepts to a full extent being one of the key parameters leading to their sustainable improvement. Accidents occurred over time in industrial facilities where explosive gas or vapor atmospheres may be present have put the explosion risks high on the agenda of regulators, operators, accident investigators or researchers in the field. Accidental flammable gas leaks in mixture with air may generate explosive atmospheres which once ignit...

This article presents an approach for managing and comparing data, concerning some main food products in Bulgaria. The source for the search of these product categories (bakery products, milk and milk products, fish and fish products and etc.) is the created relational database. The extracted data for the selected category have been grouped, compared and processed. The obtained results enable the user to present relevant conclusions for the examined time interval. This approach is applied to the data on bread and ...

In this research we investigate the significance of the CGAL library which is a source of algorithms related to computational geometry. We briefly describe the exact computation paradigm that provides obtaining reliable geometrical results. We present the advantages of using the CGAL library in terms of investigating certain parameters of geological planar structures. We show that several parameters that can be computed and attributed to considered planes and subsequent use of further statistical methods becomes p...

The advancement of tracking technologies such as RFID (Radio Frequency Identification) in recent years supported the study area of shopping behavior of consumers in retailing setting has globally regained increased interest. However, only few studies have attempted to analyze consumer shopping behavior using the RFID data. The purpose of this paper is to propose the framework based on behavioral and environmental variables, which can be tested using the RFID data obtained from the recent experiment in one of the s...

The paper deals with the problem of evaluating the characteristics of information systems at the design stage. In the design of ERP-systems the most interest characteristic is not the average time, but the probability of timely delivery of different type messsages (for example, command, service, multimedia, files, etc.) from the sender to the recipient. In addition, the possibility of using the priority information management built on the basis of service disciplines of general form with mixed priorities must be c...

Sources that contain data about tourism in Bulgaria are both structured and unstructured. Information from these xls and pdf files is organised in a created relational database. The database stores time series on tourism flow (trips of Bulgarian residents abroad and foreign tourists to Bulgaria), expenditure of outbound tourists, revenues from international tourism and employment in tourism. This article studies time series on trips of Bulgarian residents abroad (outbound tourists) by country of destination and by...

Further development of digital economy requires researching the limits of some algorithms applicability. These algorithms are based on the mechanisms obtained as a result of investigating the processes of ?alive? nature. Such algorithms were called the bio-inspired algorithms and are widely used in practice, for example, for solving the problems of multi-agent systems coordinated control. Application of coordinate descent, a type of gradient method ? extends the description of the existing shepherd dog algorithm. ...

Autostereoscopy is a method for effective visualization of three-dimensional models with the help of ordinary imaging techniques. It allows achieving the 3D object observation without the need for special goggles, displays or other equipment. The Method itself is using rapidly alternating images of given object taken from defined angles, mimicking the position of the human eyes. Such animation induces a sense of depth. Autostereoscopy can be applied to a static image or even dynamic video materials. Firstly, we ha...

This study reviews the problem of creating an algorithm for classifying objects in a Grid system, which will allow the automation of this process to proceed. Splitting objects into classes allows you to effectively manage the resources and processes that occur in a distributed system. Classification according to the current values of characteristics, by reference values of characteristics, with an analysis of the original causes of the result and also a modeled classification is considered. The problem of determin...

There is carried out the analysis of parallel methods of binary numbers sorting, which allows to represent the algorithm in a graphical form. Particular attention is paid to the methods of binary numbers sorting, which are subject to hardware implementation, namely: the Batcher?s method, the method of "even-odd" permutation, the merging method, the method of "ideal shuffling" and the modified "bubbles" method. The theory of data flow graph of algorithm is studied, which is the basis of graphically specified sortin...

The quality of the operation of broadband wireless computer networks is largely determined by the mechanism of an ordered centralized poll of terminal stations, called polling. The models of polling systems adequately describe the operation of broadband wireless networks under the control of Wi-Fi and Wi-MAX protocols with a centralized coordination function (PCF). Despite the complexity and high cost, the equipment supporting centralized management most effectively uses the most valuable resources of a broadband ...

The solution of the problem of formalization of document flow processes with the help of the proposed model of multilevel graphs of information processing has considered in the article. Despite the significant development of machine data processing technologies, the theoretical basis for their application and adaptation to the architecture of electronic document management systems is poorly developed. The model of multilevel graphs of information processing which is formalize a structure of document flow of the or...

Geological structures be of great control groundwater flow and accumulation of groundwater, and should therefore be taken into account in studies related to groundwater studies. This study attempts to investigate the impact of geological structures on groundwater flow and groundwater quality in Al Jaaw Plain, United Arab Emirates. A set of thematic maps derived from digital elevation model (DEM), Landsat images, and ALOSPLAS SAR images were enhanced by applying Sobel filter with 10% threshold and equalization enha...

Paper focuses on methodology for preprocessing of transactional data from public transport system the in region as administration unit of the Czech Republic. The aim is to present synthetic information in GIS information system. Necessary data sources are defined and evaluated. Target group of users are those who plan development of public transport system. Information covering state of each bus or other mean of transport (number of passengers categorized by tariffs between any stops of the bus line) and activitie...

Laser systems are widely used for measuring the most important physical values with the highest accuracy. In particular, laser measuring systems are used to identify earthquake precursors in monitoring tidal rock fluctuations. In many cases, signals from laser measuring systems contain noises that need to be filtered out. The signal component in this case has the form of a harmonic oscillation, the frequency and phase of which change and these changes carry information about the measured quantity. This signal shou...

This paper is about how to build a cheap modern temperature control system on an existing manufacturing system. The authors designed and implemented the control system to a tunnel type furnace for burning bricks used in constructions at SICERAM S.A. Company, Sighisoara, Romania. The bricks manufacturing phases are described in order to help the reader to understand the process complexity and the graph of the entire loading/unloading process is shown together with the tunnel furnace schematics. Then, the graphical ...

The geometric models of wireless sensor networks are analysed. The selection conditions of an optimal network model are proposed. To improve information security measures, the visualization method of changing the signals parameters with consideration of the number of information nodes and their location in space is developed. The development and advanced use of wireless sensor networks require constant improvement of their reliability, durability, and performance as well as a high level of information security. Th...

Simulation of biological processes with the aid of computing techniques helps to model physiological processes, to create mathematical models with the computer support. Starting from experimental data difficult to be obtained, we can do calculation algorithms to identify the variation functions of the processes that are to be simulated, then to interpolate in order to fill them in the missing data collection. Having the variation parameters (input data): time, temperature, dry substance, a software product (output...

Utilization of methods of building information modelling in the area of sustainable regional development becomes increasingly the topical issue with time. In many countries of Europe, this has even become part of their legislation. This article deals in particular with advantages and disadvantages related to utilization of the method of building information modelling in the process of decision-making on further exploitation of the region including monitoring its current state. At present time, there is sufficient ...

We present the results of the of innovative information technologies within the geographic information management of spatially distributed systems to improve natural risk management in Venezuela. We used the basic provisions of the system analysis, as well as the authors developed a method of complexing geo-data and thematic information. In the article we describe the platform in the form of a distributed application proposed for the organization of the structure and integration of not only the volume of geospatia...

This research belongs to one of characteristic traits of human livelihood, which connected to mass traumatism in consequence of catastrophes caused by nature or technological activity. Data and knowledge bases of proposed system consist of precedent information, accumulated for wide range of geoinformational conditions of emergency situations, different symptoms and features that affect human organism, extent of influence and positive experiences of giving urgent help to sufferers. Optimal routes and required mean...

The role of information plays in recent years in accounting. IT tools have been eveloped that provide access to a wide range of recipients for information, processing this information, and support management groups in the enterprise. The aim of the article is to present the use of online tools in the field of controlling in the company and their role in data processing and information transfer for the management. The article also presents the role of online tools in business in general.The applied research methods...

The purpose of this study is to compare different classification techniques which are Maximum Likelihood Classification (MLC), Support Vector Machine (SVM) and Random Forest (RF) for lithological classifications in the western part of Antalya province. During the study, main data source was used as Terra/ASTER image data. The study area (Western Antalya) contains eight different lithological units (i.e. limestone, travertine, peridotite, m?lange, sandstone, chert, clastic, and alluvium) which are identified in 1:2...

The object of research is making the statistical modeling software package for analysis space observations. In particular, the potential fields of the planets, the topography and gravitational fields are studded. It should be noted the fields of the terrestrial planets are still poorly understood. In the past decade data requiring precision machining have been accumulated for many planets of the Solar system. The purpose of research is improving the accuracy of the mathematical description and mapping of potential...

The role-oriented concept of programming is becoming more common in recent times. Expanding the traditional object-oriented paradigm, it allows us to apply a more flexible approach to the development of the information system and simplify the task of the developer. The use of role-oriented structures in modern applications raises the question of storing them in a database. The task of extracting homogeneous semantic entities from structured documents has a high potential for solving with the use of roles or their ...

The authors propose a model of nonlinear interaction of social network agents, which is based on a matrix generalization of the known one-dimensional logistic mapping. Similar models have not been considered previously and have not been investigated numerically. Despite the relative simplicity of the proposed non-linear model, in the course of numerical experiments, various modes of agent behavior were observed. Namely, one of the agents hesitated in making a certain decision, others were able to "agree" (came to ...

The priority of the manufacturers and production companies is to improve product quality and reduce the cost of manufacturing. The resulting quality is often strongly influenced by the heat treatment of the product. The creation and implementation of mathematical and simulation models is an effective tool for studying of the thermal processes. We can use the simulation models at the construction of new but also in the reconstruction of existing thermal aggregates. In addition, from simulation studies, we can choos...

Power system components can be loaded up to their thermal limits and power transfers resulting from fast varying load patterns are leading to an increased congestion. The conventional energy sources combined with the trend of use of renewable generation will make the future grid more resourceful and responsive, more intelligent and smarter for its users. Central power stations have lower efficiency, high polluting stations affects the environment. In order to overcome these problems structural changes are needed i...

Geoinformation system INTEGRO is intended to store and visualize geological map (scanned and vectorized), geophysical, geochemical and primary geological data, aerial and satellite images, borehole and three-dimensional data. It is also able to construct geological maps, forecast mineral resources and support studies of the deep structure of the Earth. The system is multi-window and is equipped with the synchronization mechanism in different windows for joint visual analysis of various information types. There are...

In the work we offer an approach of the development of the web platform which could be used as prototype for software which is aimed for usage of information based on geospatial data. We consider weather information as an example of data which are connected with map information. We used Google Static Maps API and Yahoo Weather API in sample project. JSF-technology and Facelets are used for the presentation of web pages. The development of application is based on JavaBeans architecture which supports the features o...