Coding theory - optimal codes, equidistant codes, Data protection - steganography, watermarking, Information technologies -interdisciplinary methods, Databases, Semantic Web, Multimedia Digital Libraries and Content Management Systems, Methods of preservation and presentation of cultural heritage, Digitalization.
Computational Lexicography, Corpus Linguistics, Contrastive Linguistics (esp. the Comparison of Slavic Languages), Ukrainian Studies, Traditional and Computational Dialectology, Semantic Web, Formal Modelling of Semantic Phenomena, Databases and Quantitative Methods in Linguistics, E-learning Systems and Content Development, Web Design and Computer Graphics, Modelling of Linguistic Information-Retrieval Systems.
Ethnology, Folklore studies, Culture Anthropology, Linguistics, Computational Linguistics, Digital Libraries.
Mathematical logic, mathematical linguistics, knowledge and data discovery, Multi-agent systems, argumentation systems, set and class theories, discrete mathematics, artificial intelligence, tests, voting systems, modal logics, markets, ethnography, programming languages, informatics, science fundaments, systems, grammar, games, semiotics, sci. ethics, ontologies, etc.
Research interests include linguistics, computational linguistics and Artificial Intelligence, with focus on building and applying computational discovery tools to diverse problems from linguistic typology, historical linguistics. Basic results include the first monograph in machine linguistic discovery; the first discovery program to present its discoveries in a scientific article (in English); machine-initiated discovery of the hypothesis of a linguistic link between Oceania and South America having far-reaching implications in science generally.
Multimedia Digital Libraries Services: Annotation and Semantic Indexing of Digital Objects, Metadata Management, Tools and Techniques for Navigation, Preview, Group, and Selection to Digital Objects/Collections and their Descriptions, Personalized and Adaptive Access to the Digital Content, etc., e-Learning Technologies and Standards, New Information Technologies and Environments for Distance Learning, Multimedia and Language Technologies, Knowledge and Semantic Web Technologies.
Mathematical Linguistics and Knowledge Processing, Human Language Technologies, Information Society Technologies, Knowledge Technologies and Management, Semantic WEB services, Semantic Information Processing, Digital Libraries and Content Management Systems, Algorithmics, Theory of Computation, Discrete Mathematics.
Semantic Web, Digital Libraries and Content Management Systems, Programming, Databases, Digitalization, Digital Graphics
Digitization, Semantic Web, Ethnology, Folklore Studies, Culture Anthropology, Communities and Identities, Ethno-statistics, Museums and Archives, Digital Libraries.
Computational Linguistics, (Statistical) Machine Translation, Natural Language Processing, Computational Morphology, Language Resources and Knowledge Representation, Machine Learning, Methodology of Linguistics.