Browsing Περιοδικά, εφημερίδες by Subject "Query languages"

Now showing items 1-2 of 2

    • Eliminating query failures in a work-centric library meta-search environment 

      Καπιδάκης, Σαράντος; Σφακάκης, Μιχάλης; Kapidakis, Sarantos; Sfakakis, Michalis (2009)
      Purpose - This paper aims to describe how approaches such as semantic based query rewritings and FRBR work entities composition could solve existing problems and improve the overall behavior of a mediated based meta-search ...

    • View selection for real conjunctive queries 

      Αφράτη, Φώτο; Γεργατσούλης, Μανώλης; Παυλάκη, Βάσια; Chirkova, Rada; Afrati, Foto; Gergatsoulis, Manolis; Pavlaki, Vassia (2007)
      Given a query workload, a database and a set of constraints, the view-selection problem is to select views to materialize so that the constraints are satisfied and the views can be used to compute the queries in the workload ...