Package weka.attributeSelection

Class ExhaustiveSearch

  • All Implemented Interfaces:
    java.io.Serializable, OptionHandler, RevisionHandler
    public class ExhaustiveSearch
extends ASSearch
implements OptionHandler
    ExhaustiveSearch :

    Performs an exhaustive search through the space of attribute subsets starting from the empty set of attrubutes. Reports the best subset found.

    Valid options are: 

     -V
  Output subsets as the search progresses.
  (default = false).
    Version:
    $Revision: 1.15 $
    Author:
    Mark Hall (mhall@cs.waikato.ac.nz)
    See Also:
    Serialized Form

    • Constructor Summary

      Constructors 
      Constructor Description
      ExhaustiveSearch()
      Constructor

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      java.lang.String[] getOptions()
      Gets the current settings of RandomSearch.
      java.lang.String getRevision()
      Returns the revision string.
      boolean getVerbose()
      get whether or not output is verbose
      java.lang.String globalInfo()
      Returns a string describing this search method
      java.util.Enumeration listOptions()
      Returns an enumeration describing the available options.
      int[] search​(ASEvaluation ASEval, Instances data)
      Searches the attribute subset space using an exhaustive search.
      void setOptions​(java.lang.String[] options)
      Parses a given list of options.
      void setVerbose​(boolean v)
      set whether or not to output new best subsets as the search proceeds
      java.lang.String toString()
      prints a description of the search
      java.lang.String verboseTipText()
      Returns the tip text for this property

      • Methods inherited from class java.lang.Object

        equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

    • Constructor Detail

      • ExhaustiveSearch

        public ExhaustiveSearch()
        Constructor

    • Method Detail

      • globalInfo

        public java.lang.String globalInfo()
        Returns a string describing this search method
        Returns:
        a description of the search suitable for displaying in the explorer/experimenter gui

      • listOptions

        public java.util.Enumeration listOptions()
        Returns an enumeration describing the available options.
        Specified by:
        listOptions in interface OptionHandler
        Returns:
        an enumeration of all the available options.

      • setOptions

        public void setOptions​(java.lang.String[] options)
                throws java.lang.Exception
        Parses a given list of options.

        Valid options are: 

         -V
  Output subsets as the search progresses.
  (default = false).
        Specified by:
        setOptions in interface OptionHandler
        Parameters:
        options - the list of options as an array of strings
        Throws:
        java.lang.Exception - if an option is not supported

      • verboseTipText

        public java.lang.String verboseTipText()
        Returns the tip text for this property
        Returns:
        tip text for this property suitable for displaying in the explorer/experimenter gui

      • setVerbose

        public void setVerbose​(boolean v)
        set whether or not to output new best subsets as the search proceeds
        Parameters:
        v - true if output is to be verbose

      • getVerbose

        public boolean getVerbose()
        get whether or not output is verbose
        Returns:
        true if output is set to verbose

      • getOptions

        public java.lang.String[] getOptions()
        Gets the current settings of RandomSearch.
        Specified by:
        getOptions in interface OptionHandler
        Returns:
        an array of strings suitable for passing to setOptions()

      • toString

        public java.lang.String toString()
        prints a description of the search
        Overrides:
        toString in class java.lang.Object
        Returns:
        a description of the search as a string

      • search

        public int[] search​(ASEvaluation ASEval,
                    Instances data)
             throws java.lang.Exception
        Searches the attribute subset space using an exhaustive search.
        Specified by:
        search in class ASSearch
        Parameters:
        ASEval - the attribute evaluator to guide the search
        data - the training instances.
        Returns:
        an array (not necessarily ordered) of selected attribute indexes
        Throws:
        java.lang.Exception - if the search can't be completed