Dmytro Dosyn

Lviv Polytechnic National University · Department of Information Systems and Networks

The widespread implementation of intelligent decision support systems (IDSS) is hampered by the lack of methods and technologies for automatically filling the knowledge base during the operation of such systems. This problem is especially acute in the medical field. Its solution lies in the application of automatic planning technologies. The method...

Patient-oriented data-driven CDSS architecture, based on adaptive ontology, is proposed as a perspective for a future development of intelligent medical decision support systems. A human body (anatomy and physiology) knowledge base should be the basic component of the system with the possibility to permanently automated update the deeply structured...

This paper investigates the effect of the structure of the contact network on the dynamics of the epidemic outbreak. In particular, we focus on the peak number of critically infected nodes (PCIN), determining the maximum workload of intensive healthcare units which should be kept low. As a model and simulation method, we develop a continuous-time M...

The management of epidemics received much interest in recent times, due to devastating outbreaks of epidemic diseases such as Ebola and COVID-19. This paper investigates the effect of the structure of the contact network on the dynamics of the epidemic outbreak. In particular we focus on the peak number of critically infected nodes, because this de...

The purpose of the article is to analyze and distinguish essential characteristics of medical terms; to analyze terms in the dental terminology of Ukraine and the USA, to determine the word structure of such terminological entities, to find out the peculiarities of their functioning; to determine the word structure of such terminological formations...

This article describes the methods of automated identification of metaphoric combinations Adjective + Noun based on dictionary definition. The research is carried out on the Ukrainian language, СУМ-11/Dictionary of Modern Ukrainian-11 and Grac v.3 corpus that served as the source of research material. On the basis of dictionary entry of the polysem...

The approach to the development of computer system for automated construction of the basic ontology is presented. The mathematical support of functioning of intellectual agents of activity planning on the basis of ontologies was developed, which allowed to formalize their behavior in the space of states. Using ontologies allows to narrow the search...

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 solution of the applied task of constructing intelligent agents (IA) of action planning is proposed. The mathematical support of functioning of intellectual agents of action planning on the basis of ontologies is developed, which made it possible to formalize the behavior of such agents in the state space. The use of ontologies allows narrowing...

The smart data integration approach is proposed to compose data and knowledge of the different nature, origin, formats and standards. This approach is based on the selective goal driven ontology learning. The automated planning paradigm in a combination with a value of the perfect information approach is proposed to be used for evaluating the knowl...

New knowledge evaluation should be based on a gain from plan refinement with taking into account new information connected with such new knowledge - value of perfect information (VPI). Therefore, knowledge discovery (KD) using text mining (TM) is an ontology learning (OL) where ontology structure provides planning means of expression.

The question on the mechanism of influence on an ionosphere of the artificial acoustic disturbances created by the controlled acoustic radiator, substantially remains open. It is connected both to complexity of a problem of interpretation, and with short time of researches for the lack of controlled sources of acoustic disturbances. Questions of in...

New on-line procedure for decametric VLBI phase calibration, that can compensate ionosphere-caused longtime complex visibility function phase fluctuations was developed. Procedure provides adaptive parametric ionospheric model building, real-time estimation of ionospheric refraction and corresponding correction of radio astronomic images.

A new on-line procedure for a decametric VLBI calibration that can compensate the ionosphere-caused complex visibility function of phase fluctuations was developed. The presented procedure ensures an adaptive ionospheric model construction, a real-time estimation of the ionospheric refraction, and the corresponding corrections of radioastronomic im...