Now showing items 1-5 of 5

    • Ontology Based Data Access in Statoil 

      Kharlamov E; Hovland D; Skjæveland MG; Bilidas D; Jiménez-Ruiz E; Xiao G; Soylu A; Lanti D; Rezk M; Zheleznyakov D; Giese M; Lie H; Ioannidis Y; Kotidis Y; Koubarakis M; Waaler A (2017)
      Ontology Based Data Access (OBDA) is a prominent approach to query databases which uses an ontology to expose data in a conceptually clear manner by abstracting away from the technical schema-level details of the underlying ...
    • The Optique Project: Towards OBDA Systems for Industry 

      Calvanese D; Giese M; Haase P; Horrocks I; Hubauer T; Ioannidis Y; Jiménez-Ruiz E; Kharlamov E; Kllapi H; Klüwer J; Koubarakis M; Lamparter S; Möller R; Neuenstadt C; Nordtveit T; Özcep Ö; Rodriguez-Muro M; Roshchin M; Ruzzi M; Savo F; Schmidt M; Soylu A; Waaler A; Zheleznyakov D (CEUR-WS, 2013)
      In this paper we present the EU Optique project that aims at developing an end-to-end OBDA system for managing Big Data in industries. We discuss limitations of state of the art OBDA systems and present the general ...
    • Optique: OBDA Solution for Big Data 

      Calvanese D; Giese M; Haase P; Horrocks I; Hubauer T; Ioannidis Y; Jiménez-Ruiz E; Kharlamov E; Kllapi H; Klüwer J; Koubarakis M; Lamparter S; Möller R; Neuenstadt C; Nordtveit T; Özcep Ö; Rodriguez-Muro M; Roshchin M; Savo F; Schmidt M; Soylu A; Waaler A; Zheleznyakov D (Springer, 2013)
      Accessing the relevant data in Big Data scenarios is increasingly difficult both for end-user and IT-experts, due to the volume, variety, and velocity dimensions of Big Data. This brings a high cost overhead in data access ...
    • Optique: Zooming in on Big Data 

      Giese M; Soylu A; Vega-Gorgojo G; Waaler A; Haase P; Jiménez-Ruiz E; Lanti D; Rezk M; Xiao G; Özçep Ö; Rosati R (2015)
      Optique overcomes problems in current ontology-based data access systems pertaining to installation overhead, usability, scalability, and scope by integrating a user-oriented query interface, semi-automated managing methods, ...
    • A Semantic Approach to Polystores 

      Kharlamov E; Mailis TP; Bereta K; Bilidas D; Brandt S; Jimènez-Ruiz E; Lamparter S; Neuenstadt C; Özcep ÖL; Soylu A; Svingos C; Xiao G; Zheleznyakov D; Calvanese D; Horrocks I; Giese M; Ioannidis YE; Kotidis Y; Möller R; Waaler A (IEEE, 2016)
      In the database community Polystores is an emerging and promising approach for data federation that aims at designing a unified querying layer over multiple data models. In the Semantic Web community a similar in spirit ...