Now showing items 1-3 of 3

  • An inside analysis of a genetic-programming based optimizer 

    Muntés Mulero, Víctor; Aguilar Saborit, Josep; Larriba Pey, Josep; Zuzarte, Calisto; Markl, Volker (Institute of Electrical and Electronics Engineers, 2006)
    Conference report
    Open Access
    The use of evolutionary algorithms has been proposed as a powerful random search strategy to solve the join order problem. Specifically, genetic programming used in query optimization has been proposed as an alternative ...
  • Horn query learning with multiple refinement 

    Sierra Santibáñez, Josefina; Santibáñez Velilla, Josefina (2008)
    Article
    Restricted access - publisher's policy
    In this paper we try to understand the heuristics that underlie the decisions made by the Horn query learning algorithm proposed in [1]. We take advantage of our explicit representation of such heuristics in order to ...
  • Query containment in entity SQL 

    Rull Fort, Guillem; Bernstein, Philip A.; Garcia dos Santos, Ivo; Katsis, Yannis; Melnik, Sergey; Teniente López, Ernest (2013)
    Conference lecture
    Restricted access - publisher's policy
    We describe a software architecture we have developed for a constructive containment checker of Entity SQL queries defined over extended ER schemas expressed in Microsoft's Entity Data Model. Our application of interest ...