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Linked Data Integration
Michelfeit, Jan ; Knap, Tomáš (advisor) ; Klímek, Jakub (referee)
Linked Data have emerged as a successful publication format which could mean to structured data what Web meant to documents. The strength of Linked Data is in its fitness for integration of data from multiple sources. Linked Data integration opens door to new opportunities but also poses new challenges. New algorithms and tools need to be developed to cover all steps of data integration. This thesis examines the established data integration proceses and how they can be applied to Linked Data, with focus on data fusion and conflict resolution. Novel algorithms for Linked Data fusion are proposed and the task of supporting trust with provenance information and quality assessment of fused data is addressed. The proposed algorithms are implemented as part of a Linked Data integration framework ODCleanStore.
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Linked Data Integration
Michelfeit, Jan ; Knap, Tomáš (advisor) ; Klímek, Jakub (referee)
Linked Data have emerged as a successful publication format which could mean to structured data what Web meant to documents. The strength of Linked Data is in its fitness for integration of data from multiple sources. Linked Data integration opens door to new opportunities but also poses new challenges. New algorithms and tools need to be developed to cover all steps of data integration. This thesis examines the established data integration proceses and how they can be applied to Linked Data, with focus on data fusion and conflict resolution. Novel algorithms for Linked Data fusion are proposed and the task of supporting trust with provenance information and quality assessment of fused data is addressed. The proposed algorithms are implemented as part of a Linked Data integration framework ODCleanStore.
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Semantic Navigator
Michelfeit, Jan ; Knap, Tomáš (advisor) ; Svoboda, Martin (referee)
The Semantic Web extends principles of the Web from documents to data. The Web of Data facilitates machines to understand the meaning of information. Semantic web search engines can take advantage of this fact and offer more precise search results and advanced query capabilities. The aim of this thesis is to use semantic data in web documents in order to enhance navigation between related web pages and bring advantages of semantic web search engines to ordinary users. We present Semantic Navigator as a solution to this task. Semantic Navigator is implemented as a Mozilla Firefox extension. The extension uses the Sindice search service for discovery of related documents and provides access to information summaries on Sig.ma.
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ODCleanStore Framework
Michelfeit, Jan
We present an ODCleanStore framework (1) enabling management of Linked Data on the Web and (2) providing web applications with a possibility to consume cleaned and integrated Linked Data according to their needs.
Slides: idr-498_1 -  PDF
Video: idr-498_2 -  MP4
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