Vìsnik Nacìonalʹnogo unìversitetu "Lʹvìvsʹka polìtehnìka". Serìâ Ìnformacìjnì sistemi ta merežì最新文献

{"title":"Mathematical and Software Formation Process of Simulations on a Graphical Processing Unit","authors":"Yulianna Kalynych, Yuriy Bilak, Ruslan Nebesnyi, P. Fedorka","doi":"10.23939/sisn2022.11.110","DOIUrl":"https://doi.org/10.23939/sisn2022.11.110","url":null,"abstract":"The paper investigates the value of simulations for research activities and identifies the main reasons for the feasibility of conducting experiments in the virtual space. The work includes two-dimensional and three-dimensional simulations built using Unity Engine. The technology of simulation in two-dimensional space was used for the simulation of Gray – Scott’s reaction-diffusion model. The considered model involves the exploration of the system in which the diffusion reaction of two substances takes place. The resulting software based on this model allows simulating the diffusion pattern in real time or speed up the flow of time in the simulation. The software product allows configuring the basic parameters of the reaction, which gives an opportunity to build simulations of any given substances or systems. It displays the result of the simulation in several modes, which allows user to evaluate different aspects of the studied reaction at any time, e.g. view the concentration of substances, the value of the change in concentration per time unit at each point in the reaction plane. For the implementation of a simulation of Gray – Scott’s reaction-diffusion model, the possibility to apply the optimization method to it by transferring calculations to the graphics core was investigated. Research has shown numerous advantages of the parallelization of calculations by the means of performing them on many threads of the graphics adapter. During the parallelization process for each pixel of the input image, which shows the initial substances application pattern on the plane, a separate stream is allocated, which calculates the values of concentration and changes in concentration at the material point of the reaction plane. From the stated above it can be concluded that the number of running computing streams is equal to the number of pixels in the image. Therefore the simulated visualization of diffusion helps to better understand real world processes, such as chemical reactions in the synthesis of hematopoiesis, fermentation. The perspectives of simulation in three-dimensional space were analyzed at the basis of the behavior of living flocks of the same type. A host of simple processes, such as avoiding collisions of elements with each other inside their groups, maintaining a common direction of movement, and bypassing obstacles along the way were implemented. The resulting flock behavior is not governed by one module of behavior of the whole flock, but is formed by the behavior of each individual entity within the flock. Therefore, the behavior of the simulated flock reflects the real behavior of flocks in nature. The described simulation was also investigated for the possibility of optimizing processes using calculations on the graphics core. Each element of the flock has a separate independent module that requires the awareness of all other entities in the flock to determine the impact on its own decisions about the movement and orientation Therefo","PeriodicalId":444399,"journal":{"name":"Vìsnik Nacìonalʹnogo unìversitetu \"Lʹvìvsʹka polìtehnìka\". Serìâ Ìnformacìjnì sistemi ta merežì","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114894078","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Information Technologies for Popularization Increase of Commercial Internet Resources","authors":"T. Basyuk, Andrii Vasyluk","doi":"10.23939/sisn2022.11.001","DOIUrl":"https://doi.org/10.23939/sisn2022.11.001","url":null,"abstract":"The study showed that at the present stage of development of information technology, portable devices account for more than half of all Internet traffic, and its consideration is mandatory in the process of promoting commercial Internet resources. Given that the authors have analyzed the main approaches to promotion in the article and showed that an important aspect of promotion is to support Mobile First technology. During the study, the mechanisms of operation of well-known search engines were analyzed and the emphasis was placed on the operation of the Google system, which is the most common in Ukraine. The analysis of the commercial segment showed that the need to create a mobile version is determined by the following three factors: search delivery, loyalty and conversion. Further work was aimed at identifying and researching the parameters that most influence the process of ranking the mobile version of the resource. The speed of the Internet resource; size and design of pages; quantity and quality of backlinks; dynamic display of content is defined and mathematically described among them, in accordance with Mobile First. Two strategies for the promotion of commercial Internet resources using Mobile First technology have been developed. The initial strategy includes a list of recommendations that should be applied in the process of creating a new Internet resource, adaptive – aimed at customers who already have a working resource. The peculiarities of the decision-making method - the decision tree used in the designed system in the process of forming recommendations are described. The apparatus of algorithms algebra for synthesis of the models demonstrating the basic stages of popularization of commercial Internet resources according to Mobile Friendly technology is applied. The development of a software product that works in demo mode, which implements these promotion strategies in accordance with Mobile First has become the result of the study.","PeriodicalId":444399,"journal":{"name":"Vìsnik Nacìonalʹnogo unìversitetu \"Lʹvìvsʹka polìtehnìka\". Serìâ Ìnformacìjnì sistemi ta merežì","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124037252","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Processes and Elements of Big Data Analisys of Distance Learning Systems","authors":"Аndrii Pryshliak, N. Kunanets, V. Pasichnyk","doi":"10.23939/sisn2022.11.023","DOIUrl":"https://doi.org/10.23939/sisn2022.11.023","url":null,"abstract":"The impact of the pandemic on educational processes in Ukraine is analyzed. The problematic moments observed during distance learning, positive and negative factors of online education are considered. Factors that can lead to conflict situations in the educational process and complicate the process of collecting and analyzing information are presented. The use of machine learning methods for big data analysis in distance learning systems is proposed. The method of analysis of the main components to reduce the dimensionality of the sample size is considered and the main steps that need to be implemented on the way to simplification are described. The possibility of analysis is ensured by the proper functioning of the distance learning system of the regulated university, interaction with all participants in the educational process, as well as the timely performance of the duties assigned to them.","PeriodicalId":444399,"journal":{"name":"Vìsnik Nacìonalʹnogo unìversitetu \"Lʹvìvsʹka polìtehnìka\". Serìâ Ìnformacìjnì sistemi ta merežì","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114298245","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Modeling of Territorial Community Development Processes","authors":"Roman Bihun, V. Lytvyn","doi":"10.23939/sisn2022.11.173","DOIUrl":"https://doi.org/10.23939/sisn2022.11.173","url":null,"abstract":"ity Local development of a certain area is formed under the influence of many criteria. The rapid pace of globalization of the world economy is one of the criteria that significantly affect the formation of new trends and patterns of local development. The manifestation of this criterion can be seen in the strengthening of the role of communities in the economic development of certain territories and countries. The Ukrainian state is already one of several countries whose societies have understood and accepted the importance of community interest in direct participation in local development. For key community representatives, the process of decentralization and changes in self-government processes will determine a fundamentally different level of responsibility for development. Consideration of such a concept of local community development will form the transformation of territorial communities from the object of government to the subject of government. And you will be able independently provide your own capacity. In general, local communities will be responsible for planning their development and economic well-being in the future. Given these perspectives, local authorities must have a good understanding of the specifics of modern development and have the necessary knowledge, information, skills, and experience to further ensure the competitiveness of their communities. The purpose of this study was to develop a system for choosing the best direction for the development of territorial communities, based on the resources belonging to these communities. This scientific work proposes to use the method of analysis of hierarchies to determine the direction of development of territorial communities, as this method allows to quantify the comparative importance of the criteria of the direction of development. The method of analysis of hierarchies involves pairwise comparisons of objects using subjective judgments, which are quantified on a certain scale. An important point in the comparison is the unbiased views of experts for the correct use of the method of analysis of hierarchies.","PeriodicalId":444399,"journal":{"name":"Vìsnik Nacìonalʹnogo unìversitetu \"Lʹvìvsʹka polìtehnìka\". Serìâ Ìnformacìjnì sistemi ta merežì","volume":"115 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117249737","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Information Support for Personalities Socialization Processes Based on Common Interests","authors":"T. Batiuk, V. Vysotska","doi":"10.23939/sisn2022.11.056","DOIUrl":"https://doi.org/10.23939/sisn2022.11.056","url":null,"abstract":"The main objective of this article is to create an information system project for socialization by personal interests on the basis of SEO-technologies and methods of machine learning. The main purpose of this information system is to identify the user within the system using neural networks and to select similar users by analysing the user's current information. An information system was created that, through Identity and JWT tokens, provides optimized and secure authorization, logging, and support functions for the current system user session. Finding a face in a user's photo and checking the presence of a similar user in the database are implemented using convolutional and Siamese neural networks. The analysis and formation of similar user beeps were implemented using fuzzy search algorithms, the Levenshtein algorithm and the Noisy Channel model, which made it possible to maximize the automation of the user selection process and to optimize the time spent in this process. Tools have also been created to view other users’ profiles, preferences and private correspondence. All private correspondence and information about it are stored in the current database. Each user of the system can view all information about sent and received messages. The created information system implements the process of user identification, analysis, selection and further socialization of system users.","PeriodicalId":444399,"journal":{"name":"Vìsnik Nacìonalʹnogo unìversitetu \"Lʹvìvsʹka polìtehnìka\". Serìâ Ìnformacìjnì sistemi ta merežì","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133950798","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"System of Message Exchange and Data Processing of Ecological and Natural Communities","authors":"N. Kunanets, Orest Zhmurkevich","doi":"10.23939/sisn2022.11.030","DOIUrl":"https://doi.org/10.23939/sisn2022.11.030","url":null,"abstract":"With the development of technological tools, it is increasingly common to meet systems which are using online messaging applications for communication with users. This process occurs with the help of so-called chatbots. Chatbot is a programmable application in which the algorithm of interaction with the user, provided by developers, is implemented. The bot provides information in the form of text or audio messages. This concept of information sharing is very convenient and mobile since the vast majority of online messaging applications are available on different platforms: desktops, smartphones, tablets etc. Accordingly, the user can access the information provided by the chatbot using any device with the necessary system requirements which is available in a certain period of time.","PeriodicalId":444399,"journal":{"name":"Vìsnik Nacìonalʹnogo unìversitetu \"Lʹvìvsʹka polìtehnìka\". Serìâ Ìnformacìjnì sistemi ta merežì","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131763287","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Information System Supporting Decision-making Processes for Forming of Securities Portfolio","authors":"A. Senyk, O. Manziy, Yuriy Futryk, O. Stepanyuk, Y. Senyk","doi":"10.23939/sisn2022.11.039","DOIUrl":"https://doi.org/10.23939/sisn2022.11.039","url":null,"abstract":"Due to large-scale changes in the economy in the world and in Ukraine in particular, there has recently been a significant increase in interest in the problems of investment theory. An example is the intensification in recent years of the purchase of shares of large international companies and cryptocurrencies and, according to the rapid growth of their values. It is known that as a special case, the theory of investment considers the task of optimizing investment portfolios. It is established that the issue of decision-making on the formation and optimization of the investment portfolio is in the field of attention of both large investment companies and private investors, because choosing among possible alternatives for allocating investments within the financial assets market, the investor will get different results. It is accepted that the optimal distribution of the investment portfolio should provide the best return while maintaining the least risk, and the result should be understood as the amount of income received during the period of ownership of the investment portfolio. An information system to support the decision-making of the securities portfolio has been developed, which allows potential investors to independently on assess the effectiveness of the investment portfolio by comparing the growth dynamics of shares available on the financial market. It is known that most of the information encountered by the investor is in tabular format, and according to the methodology of scientific knowledge, people are more receptive to visualized ways of presenting information. The newly created information system uses a visualization process that presents available tabulated information in a structured form of diagrams, graphs, charts.","PeriodicalId":444399,"journal":{"name":"Vìsnik Nacìonalʹnogo unìversitetu \"Lʹvìvsʹka polìtehnìka\". Serìâ Ìnformacìjnì sistemi ta merežì","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125743417","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Procedures for Assessing the Quality of Electronic Learning Resources Using Petal Diagrams","authors":"V. Pasichnyk, V. Yunchyk, Anatolii Fedoniuk","doi":"10.23939/sisn2022.11.087","DOIUrl":"https://doi.org/10.23939/sisn2022.11.087","url":null,"abstract":"The concept of visualization of the results of expert evaluation of the quality of electronic learning resources is considered. Much attention is paid to petal diagrams and their use in the visualization process. The algorithm for calculating the area of the petal diagram and the influence of the order of parameters on the area of each petal are described. The criteria for assessing the quality of e-learning resources and their weights for each of the experts are presented. The roles of experts with weighting factors are shown. Complex indicators of quality of electronic educational resources for each expert are defined and the complex indicator for all experts is generalized. An algorithm for calculating the areas of sector petals, which can be used to calculate and evaluate the relative quality of ELR according to the relevant criteria is given. GeoGebra dynamic mathematics system was used to implement the method of determining a comprehensive assessment of the quality of ELR. The process of construction of the petal diagram in the system of dynamic mathematics GeoGebra with the given instructions is shown.","PeriodicalId":444399,"journal":{"name":"Vìsnik Nacìonalʹnogo unìversitetu \"Lʹvìvsʹka polìtehnìka\". Serìâ Ìnformacìjnì sistemi ta merežì","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121678809","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Analysis of Artificial Intellectual Agents for E-Learning Systems","authors":"V. Yunchyk, N. Kunanets, V. Pasichnyk, Anatolii Fedoniuk","doi":"10.23939/sisn2021.10.041","DOIUrl":"https://doi.org/10.23939/sisn2021.10.041","url":null,"abstract":"The key terms and basic concepts of the agent are analyzed. The structured general classification of agents according to the representation of the model of the external environment, by the type of processing information and by the functions performed is given. The classification of artificial agents (intellectual, reflex, impulsive, trophic) also is s analyzed. The necessary conditions for the implementation of a certain behavior by the agent are given, as well as the scheme of functioning of the intelligent agent. The levels of knowledge that play a key role in the architecture of the agent are indicated. The functional diagram of a learning agent that works relatively independently, demonstrating flexible behavior. It is discussed that the functional scheme of the reactive agent determines the dependence on the environment. The properties of the intelligent agent are described in detail and the block diagram is indicated. Various variants of agent architectures, in particular neural network agent architectures, are considered. The organization of level interaction in the multilevel agent architecture is proposed. Considerable attention is paid to the Will-architecture and InteRRaP- architecture of agents. A multilevel architecture for an autonomous agent of a Turing machine is considered.","PeriodicalId":444399,"journal":{"name":"Vìsnik Nacìonalʹnogo unìversitetu \"Lʹvìvsʹka polìtehnìka\". Serìâ Ìnformacìjnì sistemi ta merežì","volume":"98 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126094924","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Architecture of Intellectual System for Research of Space Weather Parameters","authors":"Danylo Ivantyshyn, Y. Burov, V. Lytvyn","doi":"10.23939/sisn2021.10.058","DOIUrl":"https://doi.org/10.23939/sisn2021.10.058","url":null,"abstract":"Has been carried out analysis of the subject area and main functions of the intellectual system for research of space weather parameters are identified. The model of static structure of intellectual system is developed as well as its dynamic aspects are modeled. Also is constructed an architecture of intellectual system for research of space weather parameters on the basis of “client-server” two-level model. The scientific novelty of the obtained results stands on developed model of the intellectual system for research of space weather parameters. The practical significance of the intellectual system lies in its capabilities: automated collection and processing of data on the manifestations of solar activity; storing information in the database; data analysis and establishing links between helio- and geo-activity indicators, as well as forecasting geophysical disturbances caused by cosmic factors.","PeriodicalId":444399,"journal":{"name":"Vìsnik Nacìonalʹnogo unìversitetu \"Lʹvìvsʹka polìtehnìka\". Serìâ Ìnformacìjnì sistemi ta merežì","volume":"215 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133536860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}