Browsing Institutt for informatikk by Author "Nakkerud, Andreas"

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  • The tree-witness ontology rewriting with perfect mappings 
    Nakkerud, Andreas (Master thesis / Masteroppgave, 2014)
    A common way to answer queries in Ontology Base Data Access (OBDA), is to divide the process into two stages. The first stage, called the ontology rewriting, deals with the ontology axioms. The second stage, called the ...