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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 | |
|---|---|
RBFKernel()
default constructor - does nothing. |
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RBFKernel(Instances data,
int cacheSize,
double gamma)
Constructor. |
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| Method Summary | |
|---|---|
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 |
|---|
cacheSizeTipText, clean, eval, getCacheSize, numCacheHits, numEvals, setCacheSize |
| Methods inherited from class weka.classifiers.functions.supportVector.Kernel |
|---|
checksTurnedOffTipText, debugTipText, forName, getChecksTurnedOff, getDebug, makeCopies, makeCopy, setChecksTurnedOff, setDebug |
| Methods inherited from class java.lang.Object |
|---|
equals, getClass, hashCode, notify, notifyAll, wait, wait, wait |
| Constructor Detail |
|---|
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 wrong| Method Detail |
|---|
public java.lang.String globalInfo()
globalInfo in class Kernelpublic java.util.Enumeration listOptions()
listOptions in interface OptionHandlerlistOptions 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 OptionHandlersetOptions in class CachedKerneloptions - 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 OptionHandlergetOptions in class CachedKernelpublic void setGamma(double value)
value - the gamma valuepublic double getGamma()
public java.lang.String gammaTipText()
public Capabilities getCapabilities()
getCapabilities in interface CapabilitiesHandlergetCapabilities in class KernelCapabilities
public void buildKernel(Instances data)
throws java.lang.Exception
buildKernel in class CachedKerneldata - the data to base the kernel on
java.lang.Exception - if something goes wrongpublic java.lang.String toString()
toString in class java.lang.Objectpublic java.lang.String getRevision()
getRevision in interface RevisionHandlergetRevision in class Kernel
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