04929ntm a22005657i 4500 000674960 CZ-PrVSE 20200606082332.0 m d cr n|||||||||| 200606s2020 xr fsbm 000 0 eng d NEZPRACOVANÝ IMPORT ABA006 cze ABA006 ABA006 rda Fuchs, David ISIS:118851 dis Analýza propojenosti DBpedie s využitím sémantiky entit eng DBpedia linkage analysis leveraging on entity semantics / David Fuchs 2020 ?? stran : digital, PDF soubor Vedoucí práce: Vojtěch Svátek Diplomová práce (Ing.)—Vysoká škola ekonomická v Praze. Fakulta informatiky a statistiky, 2020 Obsahuje bibliografii Textový (vysokoškolská kvalifikační práce) Rok obhajoby 2020 This thesis focuses on the analysis of interlinking of Linked Open Data resources in various data silos and DBpedia, the hub of the Semantic Web. It also attempts to analyse the consistency of bibliographic records related to artwork in the two major encyclopaedic datasets, DBpedia and Wikidata, in terms of internal consistency of artwork in Wikidata, which models its entries in compliance with the Functional Requirements for Bibliographic Records (FRBR), as well as the consistency of interlinking from DBpedia to Wikidata.The first part of the thesis describes the background of the topic, focusing on the concepts important for this thesis: Semantic Web, Linked Data, Data quality, knowledge representations in use on the Semantic Web, interlinking and two important ontologies (OWL and SKOS).The second part is dedicated to the analysis of various data quality features of interlinking with DBpedia. The results of this analysis of interlinking between various sources of LOD and DBpedia has led to some concerns over duplicate and inconsistent entities, but the real problem appears to be the currency of data with only half of the datasets linking DBpedia being updated at most five years before the data collection for this thesis took place (October through November 2019). It is also concerning that almost 14 % of the interlinked datasets are not available through standard Semantic Web technologies (SPARQL, dereferenceable URIs, RDF dump). The third part starts with the description of the approach to modelling artwork entities in Wikidata in compliance with FRBR and then continues with the analysis of internal consistency of this part of Wikidata and the consistency of interlinking of annotated entities from DBpedia and their counterparts from Wikidata. The percentage of FRBR entities in Wikidata found to be affected by inconsistencies is 1.5 %, but this figure may be higher due to technological constraints that prevented several queries from finishing. To compensate for the failed queries, the number of inconsistent entities was estimated by a calculation to be 22 %. The inconsistency rate of interlinking between DBpedia and Wikidata was found to be about 16 % according to the annotators.The last part aims to provide a holistic view of the problem domain, describing how the inconsistencies in different parts of the interlinking chain could lead to severe consequences unless pre-emptive measures are taken. A by-product of the research is a web application designed to facilitate the annotation of DBpedia resources with FRBR typing information, which was used to enable the analysis of interlinking between DBpedia and Wikidata. The key choices made during its development process are documented in the annex. Způsob přístupu: Internet znalostní a webové technologie [obor dipl. práce] diplomové práce fd132022 czenas master's theses eczenas DBpedia linking Wikidata Wikidata artwork linguistic datasets linking DBpedia Wikidata FRBR Wikidata consistency linked open datasets linking DBpedia linked data quality interlinking consistency Svátek, Vojtěch, 1967 prosinec 1.- mzk2004217940 ths Dojčinovski, Milan ISIS:98524 opn Vysoká škola ekonomická v Praze. Fakulta informatiky a statistiky kn20010709399 dgg https://insis.vse.cz/zp/70145/podrobnosti VŠKP v InSIS https://insis.vse.cz/zp/70145 Hlavní práce https://insis.vse.cz/zp/70145/posudek/vedouci Hodnocení vedoucího https://insis.vse.cz/zp/70145/posudek/oponent/66306 Oponentura https://insis.vse.cz/zp/70145/podrobnosti dc:identifier NEPOSILAT VSKP vse70145 200605 70145