THE PROBLEM OF FEATURE EXTRACTION OF CONCEPTS IN ONTOLOGICAL MODELING OF SUBJECT AREA by Denis V. Vlasov

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Regularity in Vague Intersection Graphs and Vague Line Graphs by Muhammad Akram, Wieslaw A. Dudek, M. Murtaza Yousaf

“…Fuzzy graph theory is commonly used in computer science applications, particularly in database theory, data mining, neural networks, expert systems, cluster analysis, control theory, and image capturing. …”
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On Safety of Unary and Non-unary IFP-operators by Sergey Dudakov

“…IFP-operators exactly correspond to recursive SQL-queries hence this problem has a value for database theory. The problem appears from the fact that if recursive queries contain universe functions and relations, then its execution can fall into an infinite loop. …”
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Sport’s Function Analysis in Iran's Development by Zahra Sohrabi, Nima Hasanzadeh, Amir Rahimi

“…Purpose: It seems that there are still challenges in the development of sport, and in particular supporting the protective components and prerequisites at the policy level.Methods: The present study seeks to present a model of the function analysis of sport in Iran's development, which was carried out through proposing a database theory. Participants included 11 faculty members of Sport Management University and sport managers who were selected through a combination of theoretical sampling method and snowball for a semi-structured interview. …”
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Development of an Environmental Monitoring System Based on Spatial Marking and Machine Vision Technologies by M. M. Zaslavskiy, K. E. Kryzhanovskiy, D. V. Ivanov

“…Software engineering methods, database theory methods, spatial markup methods, image processing methods.Results. …”
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Presenting the Development Model of Active Sports Tourism with an Economic Approach: the Share of Health-Oriented Sports in the Gross Domestic Product by Zahra Sohrabi, Mehrdad Moharam Zadeh, Rasool Nazari

“…Therefore, the current study aims to develop a sports tourism development model with an economic approach to address various aspects of increasing sports tourism's share in the gross domestic product.Methodology: This qualitative study used the database theory strategy and Charms's constructivist approach. …”
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Presenting a Model for Training Reflective Managers for Farhangian University by Mohammad Ahmadi beni, Masoumeh Oladian, Mahmoud Safari

“…The analysis of the research data was conducted utilizing a database theory approach, which included open, axial, and selective coding, facilitated by MAXQDA software. …”
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The Taliban Strategic Model of the Second State Building in Afghanistan by Abdolreza Alishahi, Neda Hasanpuor, Karam Sina

“…The data were analyzed in the qualitative part with the qualitative method of database theory and MAXQDA10 software, and in the quantitative part with the method of structural equations, partial least squares algorithm with SMART PLS software. …”
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Teaching methods of work with data in the course of process management by A. G. Mikheev

“…As a rule, students of these specialties cannot singly install database servers on their home PCs for doing hands-on tasks by themselves and also do not have the necessary practical experience with database theory.The use of free software in the course allows students to obtain practical skills of working with business-process management system and also to do tasks on distance just by installing the necessary software on their PCs (laptops). …”
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Planning a Systematic Way Out of Commodity Smuggling with Integrated Marketing Communications Management Approach (Case Study: Covid-19 Outbreak Crisis) by Hamed Riahi, Naser Azad, Tahmores Hasangholipor yasory, Kiamars Fathi Hafshejani

“…Therefore, planning a systematic way out of commodity smuggling with the integrated marketing communication management approach (case study: Covid-19  outbreak crisis) was proposed for the first time.The present exploratory research was presented through semi-structured interviews of 12 experts and using the database theory and the Delphi method, conceptual model and appropriate theory, extracting 18 categories and 82 sub-components, content validity (0.71), retest reliability (77%), and reliability two coders (65%) were evaluated favorably and practical suggestions were presented by documenting organizational knowledge.It seems that in the crisis of the Covid-19 outbreak, planning through the management of integrated marketing communications can be used to prevent and get out of the situation of smuggling of goods towards the health of the business environment and economic development.Therefore, planning a systematic way out of commodity smuggling with the integrated marketing communication management approach (case study: Corona outbreak crisis) was proposed for the first time.The present exploratory research was presented through semi-structured interviews of 12 experts and using the data base theory and the Delphi method, conceptual model and appropriate theory, while extracting 18 categories and 82 sub-components, content validity (0.71), retest reliability (77%) and reliability Two coders (65%) were evaluated favorably and practical suggestions were presented by documenting organizational knowledge.Among the categories, "supporting legal trade while modifying and completing the business model" and "supporting production while modifying and completing the production and employment model" had the highest frequency. …”
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Development of the destination branding model based on tourism industry nostalgia by parinaz masoumi, vahidreza mirabi, jalal HaghighatMonfared, Ahmad Vedadi

“…In this research, first, the initial research model was designed using the database theory, and then the obtained model (qualitative part) was subjected to validation using a field survey. …”
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