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Informatics Colloquium 19.3. Semantic data modeling – conceptual viewInformatics Colloquium 19. 3. 2019, 14:00 lecture hall D2 RNDr. Radek Ošlejšek, Ph.D., FI MU Semantic data modeling – conceptual view Abstract: In this talk, I will explain the principles of semantic modeling. I will briefly compare popular data models, such as rational vs. NoSQL databases. Then, I will focus on graph ontologies. I will describe their features, the problem of abstraction, information levels (e.g., upper vs. domain ontologies), and other aspects that are important for semantic modeling. The discussion will be supported by practical examples that emerged in our research of the semantic modeling of image content. Examples from the cybersecurity domain will, in turn, demonstrate the abilities and limitations of ontologies for detection and mitigation of cyber threats. Possible utilization of ontologies for formal knowledge modeling in hands-on cybersecurity training will be presented as well.