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    • Beyond OWL 2 QL in OBDA: Rewritings and approximations 

      Botoeva E; Calvanese D; Santarelli V; Fabio Savo D; Solimando A; Xiao G (AAAI, 2016)
      Ontology-based data access (OBDA) is a novel paradigm facilitating access to relational data, realized by linking data sources to an ontology by means of declarative mappings. DL-LiteR, which is the logic underpinning the ...