Package weka.classifiers.functions.supportVector

Class Puk

java.lang.Object
weka.classifiers.functions.supportVector.Kernel
weka.classifiers.functions.supportVector.CachedKernel
weka.classifiers.functions.supportVector.Puk
All Implemented Interfaces:
Serializable, CapabilitiesHandler, OptionHandler, RevisionHandler, TechnicalInformationHandler
public class Puk extends CachedKernel implements TechnicalInformationHandler
The Pearson VII function-based universal kernel.

For more information see:

B. Uestuen, W.J. Melssen, L.M.C. Buydens (2006). Facilitating the application of Support Vector Regression by using a universal Pearson VII function based kernel. Chemometrics and Intelligent Laboratory Systems. 81:29-40.

Valid options are: 

 -D
  Enables debugging output (if available) to be printed.
  (default: off)
 
 -C <num>
  The size of the cache (a prime number), 0 for full cache and 
  -1 to turn it off.
  (default: 250007)
 
 -O <num>
  The Omega parameter.
  (default: 1.0)
 
 -S <num>
  The Sigma parameter.
  (default: 1.0)
Version:
$Revision: 14512 $
Author:
Bernhard Pfahringer (bernhard@cs.waikato.ac.nz)
See Also:

  • Constructor Details

    • Puk

      public Puk()
      default constructor - does nothing.

    • Puk

      public Puk(Instances data, int cacheSize, double omega, double sigma) throws Exception
      Constructor. Initializes m_kernelPrecalc[].
      Parameters:
      data - the data to use
      cacheSize - the size of the cache
      omega - the exponent
      sigma - the bandwidth
      Throws:
      Exception - if something goes wrong

  • Method Details

    • globalInfo

      public String globalInfo()
      Returns a string describing the kernel
      Specified by:
      globalInfo in class Kernel
      Returns:
      a description suitable for displaying in the explorer/experimenter gui

    • getTechnicalInformation

      public TechnicalInformation getTechnicalInformation()
      Returns an instance of a TechnicalInformation object, containing detailed information about the technical background of this class, e.g., paper reference or book this class is based on.
      Specified by:
      getTechnicalInformation in interface TechnicalInformationHandler
      Returns:
      the technical information about this class

    • listOptions

      public Enumeration<Option> listOptions()
      Returns an enumeration describing the available options.
      Specified by:
      listOptions in interface OptionHandler
      Overrides:
      listOptions in class CachedKernel
      Returns:
      an enumeration of all the available options.

    • setOptions

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

      Valid options are: 

       -D
  Enables debugging output (if available) to be printed.
  (default: off)
 
       -C <num>
  The size of the cache (a prime number), 0 for full cache and 
  -1 to turn it off.
  (default: 250007)
 
       -O <num>
  The Omega parameter.
  (default: 1.0)
 
       -S <num>
  The Sigma parameter.
  (default: 1.0)
      Specified by:
      setOptions in interface OptionHandler
      Overrides:
      setOptions in class CachedKernel
      Parameters:
      options - the list of options as an array of strings
      Throws:
      Exception - if an option is not supported

    • getOptions

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

    • setOmega

      public void setOmega(double value)
      Sets the omega value.
      Parameters:
      value - the omega value

    • getOmega

      public double getOmega()
      Gets the omega value.
      Returns:
      the omega value

    • omegaTipText

      public String omegaTipText()
      Returns the tip text for this property
      Returns:
      tip text for this property suitable for displaying in the explorer/experimenter gui

    • setSigma

      public void setSigma(double value)
      Sets the sigma value.
      Parameters:
      value - the sigma value

    • getSigma

      public double getSigma()
      Gets the sigma value.
      Returns:
      the sigma value

    • sigmaTipText

      public String sigmaTipText()
      Returns the tip text for this property
      Returns:
      tip text for this property suitable for displaying in the explorer/experimenter gui

    • getCapabilities

      public Capabilities getCapabilities()
      Returns the Capabilities of this kernel.
      Specified by:
      getCapabilities in interface CapabilitiesHandler
      Overrides:
      getCapabilities in class Kernel
      Returns:
      the capabilities of this object
      See Also:

    • buildKernel

      public void buildKernel(Instances data) throws Exception
      builds the kernel with the given data. Initializes the kernel cache. The actual size of the cache in bytes is (64 * cacheSize).
      Overrides:
      buildKernel in class CachedKernel
      Parameters:
      data - the data to base the kernel on
      Throws:
      Exception - if something goes wrong

    • toString

      public String toString()
      returns a string representation for the Kernel
      Overrides:
      toString in class Object
      Returns:
      a string representaiton of the kernel

    • getRevision

      public String getRevision()
      Returns the revision string.
      Specified by:
      getRevision in interface RevisionHandler
      Overrides:
      getRevision in class Kernel
      Returns:
      the revision