Yevhen Burov

Lviv Polytechnic National University · Institute of Computer Science

An analysis of the helio- and geo-activity subject area has been carried out, which become a ground for the main essences of space weather indices, their attributes and connections between them were determined. An ER-diagram was constructed and a logical scheme of the database of the intelligent system for the research of space weather parameters w...

The research in the domain of autonomous intelligent agent is the foreground of the introduction of artificial intelligence solution in all areas of economy. The intelligent autonomous systems combine the usage of pattern recognition, reasoning, decision making, conceptual modeling techniques and methods. The important part of intelligent agent imp...

The growing complexity of software reflects the trend of mobility and changeability of business processes in our increasingly interconnected world. The change in the business process entails the difference in the supporting software, which should updated quickly and efficiently. Existing software architectures and approaches to design cannot provid...

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 weathe...

The optimal decision-making task based on the Markovian learning methods is investigated. The stochastic and deterministic learning methods are described. The decision-making problem is formulated. The problem of Markovian learning of an agent making optimal decisions in a deterministic environment was solved on the example of finding the shortest...

The growing complexity of information systems requires offloading knowledge-based decision making to software. The common approach is to encode formalized domain knowledge in form of ontology. However, this approach has many inherent flaws, such as subjectivity of ontology design, difficulties to formalize different perspectives and points of view...

The system providing the automated monitoring of changes in web resources was designed and developed. The entire process is divided into five parts. Each subsequent stage included some parts of the previous one. The practical value of this system resides in the ability to detect, in the shortest possible time, the changes in web-resource. In case,...

The complex dynamic structure of the ontology and its content requires implementing of op-timization procedures to better ontology processing performance and resolve conflicts be-tween data. This paper addresses the issues of ontology optimization with the purpose of adapting its content to the needs of users by excluding those items that are rarel...

The growth of volume of text resources on Internet and natural limitations of human cognition justifies the development of search enhancement systems. This paper proposes a contextual search method based on domain thesaurus. The method uses semantic metrics defined on thesaurus and weighted conceptual graph model for search enhancement. As an examp...

JDL модель із вказанням операцій опрацювання контексту. Для представлення контекстних знань області працевлашту-вання використано контекстні графи. Запропоновано операцію поглиблення контексту як частину процесу прийняття рішення. Запропоновано модифікований метод аналі-тичної ієрархії для обґрунтування рішень щодо вибору практик. Ключові слова: он...

Construction of ontology of processes of employment based on analysis of operations contexts. In this article, a method for building ontology based on analysis of context of business operations is proposed. The application of this method is described in detail using recruitment area business process as example. The developed method of ontology cons...

The problem of formalization and reusing of knowledge is central when building autonomous intellectual systems. Ontologies being formal conceptualization of subject area, are often used for representing knowledge. In this thesis the structure of intellectual system is presented along with formal representations of ontological model. The representa...

Situation awareness is an important prerequisite of decision making in autonomous systems. Such systems are using information from sensors and formalized knowledge to assess situations and make decisions in dynamically changing environment. Situation awareness is studied as a part of information fusion process. Different models and methods were pro...

Для управління процесом набуття знань та ефективного їх використання в інтелектуальних системах використовують контекстозалежні методи. Проаналізовано різні визначення контексту та узагальнено його властивості для системи з агентом, що приймає рішення. Наведено порівняння формальних моделей подання та опрацювання контекстозалежних даних, а також ме...

The paper describes formal methods for knowledge processing and representation in situational awareness systems. Advantages and disadvantages of these methods were analyzed. Modeling framework “Algebra of systems” and Data Fusion Model were applied. A mathematical representation of knowledge, based on algebraic model of the subject area and ontolog...

The paper describes some approaches to UI design automation based on the knowledge that describes ontology domain. Tools interface development based on ontologies software, based on the principle of separation of designing and implementing the user interface and business applications and their subsequent binding and automatic code generation interf...