public class Puk extends CachedKernel implements TechnicalInformationHandler
-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)
-O <num> The Omega parameter. (default: 1.0)
-S <num> The Sigma parameter. (default: 1.0)
Modifier and Type | Field and Description |
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protected double |
m_factor
Cached factor for the Puk kernel.
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protected double[] |
m_kernelPrecalc
The precalculated dotproducts of <inst_i,inst_i>
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protected double |
m_omega
Omega for the Puk kernel.
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protected double |
m_sigma
Sigma for the Puk kernel.
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m_cacheHits, m_cacheSize, m_cacheSlots, m_kernelEvals, m_kernelMatrix, m_keys, m_numInsts, m_storage
m_ChecksTurnedOff, m_data, m_Debug
Constructor and Description |
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Puk()
default constructor - does nothing.
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Puk(Instances data,
int cacheSize,
double omega,
double sigma)
Constructor.
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Modifier and Type | Method and Description |
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void |
buildKernel(Instances data)
builds the kernel with the given data.
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protected double |
computeFactor(double omega,
double sigma)
computes the factor for curve-fitting (see equation (13) in paper)
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protected double |
evaluate(int id1,
int id2,
Instance inst1)
returns the dot product
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double |
getOmega()
Gets the omega value.
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java.lang.String[] |
getOptions()
Gets the current settings of the Kernel.
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double |
getSigma()
Gets the sigma value.
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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.
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java.lang.String |
globalInfo()
Returns a string describing the kernel
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protected void |
initVars(Instances data)
initializes variables etc.
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java.util.Enumeration |
listOptions()
Returns an enumeration describing the available options.
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java.lang.String |
omegaTipText()
Returns the tip text for this property
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void |
setOmega(double value)
Sets the omega value.
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void |
setOptions(java.lang.String[] options)
Parses a given list of options.
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void |
setSigma(double value)
Sets the sigma value.
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java.lang.String |
sigmaTipText()
Returns the tip text for this property
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java.lang.String |
toString()
returns a string representation for the Kernel
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cacheSizeTipText, clean, dotProd, eval, getCacheSize, numCacheHits, numEvals, setCacheSize
checksTurnedOffTipText, debugTipText, forName, getChecksTurnedOff, getDebug, makeCopies, makeCopy, setChecksTurnedOff, setDebug
protected double[] m_kernelPrecalc
protected double m_omega
protected double m_sigma
protected double m_factor
public Puk()
public Puk(Instances data, int cacheSize, double omega, double sigma) throws java.lang.Exception
data
- the data to usecacheSize
- the size of the cacheomega
- the exponentsigma
- the bandwidthjava.lang.Exception
- if something goes wrongpublic java.lang.String globalInfo()
globalInfo
in class Kernel
public TechnicalInformation getTechnicalInformation()
getTechnicalInformation
in interface TechnicalInformationHandler
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)
-O <num> The Omega parameter. (default: 1.0)
-S <num> The Sigma parameter. (default: 1.0)
setOptions
in interface OptionHandler
setOptions
in class CachedKernel
options
- the list of options as an array of stringsjava.lang.Exception
- if an option is not supportedpublic java.lang.String[] getOptions()
getOptions
in interface OptionHandler
getOptions
in class CachedKernel
protected double evaluate(int id1, int id2, Instance inst1) throws java.lang.Exception
evaluate
in class CachedKernel
id1
- the index of instance 1id2
- the index of instance 2inst1
- the instance 1 objectjava.lang.Exception
- if something goes wrongpublic void setOmega(double value)
value
- the omega valuepublic double getOmega()
public java.lang.String omegaTipText()
public void setSigma(double value)
value
- the sigma valuepublic double getSigma()
public java.lang.String sigmaTipText()
protected double computeFactor(double omega, double sigma)
omega
- the omega to usesigma
- the sigma to useprotected void initVars(Instances data)
initVars
in class CachedKernel
data
- the data to usepublic void buildKernel(Instances data) throws java.lang.Exception
buildKernel
in class CachedKernel
data
- the data to base the kernel onjava.lang.Exception
- if something goes wrongpublic java.lang.String toString()
toString
in class java.lang.Object