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The Optimal Tour Problem in Smart Tourism Recommender Systems
(2020-10-09) Tulashvili, Yurii
In this paper it is investigated a structure of the SMART tourism recommender system. Basic approaches for generating recommendations in an automated mode for selecting the best tourist routes in the SMART City Tourism network has been determined. This approaches are based on the analysis of the accumulated information about the most popular tourist destinations. It is proposed a mathematical model which provides, on the basis of knowledge about tourist sites, the possibility of construction optimal sequence of tourist routes. The proposed algorithm are based on the technology of online analytical processing of OLAP data selected from DW and organized in the form of OLAP Cubes
Model of formalized information security audit of an organization with a critical infrastructure facility for compliance with international security standards
(CEUR-WS, 2025) Lishchyna, Nataliia; Lishchyna, Valerii; Kozubtsov, Igor; Yashchuk, Andrii
The article emphasizes the importance of conducting information security audits for information systems of critical infrastructure organizations. Effective protection is ensured by aligning security systems with international standards. The audit monitors and assesses compliance but remains effective only when performed regularly by trained specialists. Due to the routine nature of audits and wartime constraints, such as power outages and loss of communication, AI-based methods are often impractical. Therefore, the authors propose a temporary solution using formalized security assessment criteria with clear indicators for objective verification. The study develops a methodology for conducting audits aligned with international standards, addressing the lack of practical guidance in existing ones. It also analyzes global regulatory documents to identify typical management approaches and proposes an adaptable checklist-based methodology covering 10 key information security areas, particularly useful for organizations operating under wartime conditions. © 2025 Copyright for this paper by its authors.
Business information system for forecasting raw material stocks for the production of flexible packaging
(Greece, 2024-10-11) Здолбіцька, Ніна Василівна; Ostapchuk, Oleksandr; Лавренчук, Світлана Василівна; Терлецький, Тарас Володимирович; Кайдик, Олег Леонтійович; Zhyharevych, Oksana
A specialized information system of the enterprise has been developed for forecasting and raw materials ordering, which allows for the optimization of warehouse stocks of raw materials and reduces the risks of under-fulfillment of orders for finished products. It is important to control warehouse stocks and orders for basic raw materials of pure film. The essence of control comes down to constant monitoring of raw material balances in warehouses, and forecasting orders for base films in advance, since the execution of raw material deliveries is also stretched from two weeks to several months. The developed program automatically takes into account the available balance of raw materials in warehouses, the ordered quantity, and the required quantity according to forecasts, which improves the raw materials turnover ratio in warehouses. As customer expectations and behavior change dynamically, having such demand forecasting software empowers companies and helps them respond quickly to changes. An analytical decision-making mechanism based on a weighting function that provides the degree of raw material relevance for an order has been proposed. Recommendations have been given for choosing weighting function coefficients. The research results have been implemented in a business process at an enterprise engaged in the production of flexible packaging. The advantage of this system is the userfriendly interface, in particular the advisory component regarding the need and number of orders.

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