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Ontologies represented in a relational database
Lučkaničová, Jekaterina ; Chlapek, Dušan (advisor) ; Tomášková, Barbora (referee)
Searching on the internet is still moving forward. The reason is very simple, more and more people use the internet to fint information, but they are often not satisfied with results. Growing body of information that requires large repositories of knowledge. Because of growing number of information stored in repositories , it is harder to get the resources you need. This work was created on the basic of knowledge about the semantic web. It seeks to familiarizethe general public about ontology, which contents the meanings of words and allows the use of these technologies. The work has a practical part in which the proposal as an ontological storage sites, as well as a repository built on a relational database.
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What is hidden behind searching or Searching Session NTL 2011
Národní technická knihovna
Seminář je realizován v rámci projektu Moderní informační a komunikační technologie v knihovnictví s podporou programu Ministerstva kultury "Veřejné informační služby knihoven – podprogram Mimoškolní vzdělávání knihovníků". Cílem projektu je poskytnout teoretické znalosti a praktické dovednosti ve využití moderních informačních a komunikačních technologií především v oblasti služeb knihoven. Seminář "Co se skrývá za vyhledáváním aneb Searching Session NTK" je určen pracovníkům různých typů knihoven a informačním specialistům.
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Publishing the vocabulary of the types of grey literature as linked data
Mynarz, Jindřich ; Pejšová, Petra ; Simandlová, Tereza ; Labuda, Radim
The formulation of the vocabulary of the types of grey literature in RDF (Resource Description Framework) provides an explicit conceptualization of the domain of grey literature. This type of modelling harnesses the expressive power of ontology languages for RDF data format and its flexible and extensible nature. Formalized in this way, the vocabulary serves as a means to describe grey literature resources in a structured, machine-readable manner. Adopting linked data publishing model affords the re-use and light-weight integration of the vocabulary with other vocabularies via links. The vocabulary built in this way can re-purpose existing vocabularies and re-purpose their concepts by putting them in a new context. This may lead to tighter integration of grey literature within the Web and make it easier to be discovered.
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Vybrane vlastnosti atributy anotovanych dat
Řimnáč, Martin
The paper compares features of learning and querying process in the situation, when values in the input data set are annotated by attributes or this information is not available. The attribute annotation enables to consider global relationships, which are useful to express the data semantics in a explicit way. It will be shown data can be accessed with no semantic interpretation and then, after the evaluation process, the result can be interpreted.
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