• DocumentCode
    2820460
  • Title

    Combining search space diagnostics and optimisation

  • Author

    Moser, Irene ; Gheorghita, Marius

  • Author_Institution
    Swinburne Univ. of Technol., Melbourne, VIC, Australia
  • fYear
    2012
  • fDate
    10-15 June 2012
  • Firstpage
    1
  • Lastpage
    8
  • Abstract
    Stochastic optimisers such as Evolutionary Algorithms outperform random search due to their ability to exploit gradients in the search landscape, formed by the algorithm´s search operators in combination with the objective function. Research into the suitability of algorithmic approaches to problems has been made more tangible by the direct study and characterisation of the underlying fitness landscapes. Authors have devised metrics, such as the autocorrelation length, to help define these landscapes. In this work, we contribute the Predictive Diagnostic Optimisation method, a new local-search-based algorithm which provides knowledge about the search space while it searches for the global optimum of a problem. It is a contribution to a less researched area which may be named Diagnostic Optimisation.
  • Keywords
    evolutionary computation; gradient methods; optimisation; search problems; stochastic processes; autocorrelation length; evolutionary algorithms; fitness landscapes; gradients; predictive diagnostic optimisation method; random search; search landscape; search space diagnostics; stochastic optimisers; Computational fluid dynamics; Optimization; Prediction algorithms;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Evolutionary Computation (CEC), 2012 IEEE Congress on
  • Conference_Location
    Brisbane, QLD
  • Print_ISBN
    978-1-4673-1510-4
  • Electronic_ISBN
    978-1-4673-1508-1
  • Type

    conf

  • DOI
    10.1109/CEC.2012.6256454
  • Filename
    6256454