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java.lang.Objectweka.classifiers.functions.supportVector.Kernel
weka.classifiers.functions.supportVector.CachedKernel
weka.classifiers.functions.supportVector.RBFKernel
public class RBFKernel
The RBF kernel. K(x, y) = e^-(gamma * <x-y, x-y>^2)
Valid options are:-D Enables debugging output (if available) to be printed. (default: off)
-no-checks Turns off all checks - use with caution! (default: checks on)
-C <num> The size of the cache (a prime number), 0 for full cache and -1 to turn it off. (default: 250007)
-G <num> The Gamma parameter. (default: 0.01)
Constructor Summary | |
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RBFKernel()
default constructor - does nothing. |
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RBFKernel(Instances data,
int cacheSize,
double gamma)
Constructor. |
Method Summary | |
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void |
buildKernel(Instances data)
builds the kernel with the given data. |
java.lang.String |
gammaTipText()
Returns the tip text for this property |
Capabilities |
getCapabilities()
Returns the Capabilities of this kernel. |
double |
getGamma()
Gets the gamma value. |
java.lang.String[] |
getOptions()
Gets the current settings of the Kernel. |
java.lang.String |
getRevision()
Returns the revision string. |
java.lang.String |
globalInfo()
Returns a string describing the kernel |
java.util.Enumeration |
listOptions()
Returns an enumeration describing the available options. |
void |
setGamma(double value)
Sets the gamma value. |
void |
setOptions(java.lang.String[] options)
Parses a given list of options. |
java.lang.String |
toString()
returns a string representation for the Kernel |
Methods inherited from class weka.classifiers.functions.supportVector.CachedKernel |
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cacheSizeTipText, clean, eval, getCacheSize, numCacheHits, numEvals, setCacheSize |
Methods inherited from class weka.classifiers.functions.supportVector.Kernel |
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checksTurnedOffTipText, debugTipText, forName, getChecksTurnedOff, getDebug, makeCopies, makeCopy, setChecksTurnedOff, setDebug |
Methods inherited from class java.lang.Object |
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equals, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
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public RBFKernel()
public RBFKernel(Instances data, int cacheSize, double gamma) throws java.lang.Exception
data
- the data to usecacheSize
- the size of the cachegamma
- the bandwidth
java.lang.Exception
- if something goes wrongMethod Detail |
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public java.lang.String globalInfo()
globalInfo
in class Kernel
public java.util.Enumeration listOptions()
listOptions
in interface OptionHandler
listOptions
in class CachedKernel
public void setOptions(java.lang.String[] options) throws java.lang.Exception
-D Enables debugging output (if available) to be printed. (default: off)
-no-checks Turns off all checks - use with caution! (default: checks on)
-C <num> The size of the cache (a prime number), 0 for full cache and -1 to turn it off. (default: 250007)
-G <num> The Gamma parameter. (default: 0.01)
setOptions
in interface OptionHandler
setOptions
in class CachedKernel
options
- the list of options as an array of strings
java.lang.Exception
- if an option is not supportedpublic java.lang.String[] getOptions()
getOptions
in interface OptionHandler
getOptions
in class CachedKernel
public void setGamma(double value)
value
- the gamma valuepublic double getGamma()
public java.lang.String gammaTipText()
public Capabilities getCapabilities()
getCapabilities
in interface CapabilitiesHandler
getCapabilities
in class Kernel
Capabilities
public void buildKernel(Instances data) throws java.lang.Exception
buildKernel
in class CachedKernel
data
- the data to base the kernel on
java.lang.Exception
- if something goes wrongpublic java.lang.String toString()
toString
in class java.lang.Object
public java.lang.String getRevision()
getRevision
in interface RevisionHandler
getRevision
in class Kernel
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