Now showing items 1-3 of 3

    • Benchmarking and Optimization of OBDA Systems 

      Lanti, Davide (Free University of Bozen-Bolzano, 2018)
      In this thesis we address the two distinct but interleaved problems of benchmarking and optimization of ontology-based data access (OBDA) systems. OBDA is an approach to cope with the emerging need of providing an ...
    • Integrating abductive logic programming and description logics in a dynamic contracting architecture 

      Alberti, M; Cattafi, M; Chesani, F; Gavanelli, M; Lamma, E; Mello, P; Montali, M; Torroni, P (IEEE Press, 2009)
      In Semantic Web technologies, searching for a service means to identify, components that can potentially satisfy the user needs in terms of outputs and effects (discovery), and that, when invoked by the customer can ...
    • Ontop: Answering SPARQL queries over relational databases 

      Calvanese D; Cogrel B; Komla-Ebri S; Kontchakov R; Lanti D; Rezk M; Rodriguez-Muro M; Xiao G (2017)
      We present Ontop, an open-source Ontology-Based Data Access (OBDA) system that allows for querying relational data sources through a conceptual representation of the domain of interest, provided in terms of an ontology, ...