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java.lang.Objectde.jstacs.algorithms.optimization.DifferentiableFunction
de.jstacs.classifier.scoringFunctionBased.logPrior.LogPrior
de.jstacs.classifier.scoringFunctionBased.logPrior.DoesNothingLogPrior
public class DoesNothingLogPrior
This class defines a LogPrior
that does not penalize any parameter.
Field Summary | |
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static DoesNothingLogPrior |
defaultInstance
As this prior does not penalize parameters and does not have any parameters itself, this class does not have a constructor, but provides a default instance in order to reduce memory consumption. |
Fields inherited from class de.jstacs.classifier.scoringFunctionBased.logPrior.LogPrior |
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UNKNOWN |
Method Summary | |
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void |
addGradientFor(double[] params,
double[] grad)
Adds the gradient of the log-prior using the current parameters to a given vector. |
double |
evaluateFunction(double[] params)
Evaluates the function at a certain vector (in mathematical sense) x |
int |
getDimensionOfScope()
Returns the dimension of the scope of the function. |
String |
getInstanceName()
Returns a short instance name. |
LogPrior |
getNewInstance()
This method returns an empty new instance of the current prior. |
StringBuffer |
toXML()
Deprecated. |
Methods inherited from class de.jstacs.classifier.scoringFunctionBased.logPrior.LogPrior |
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evaluateGradientOfFunction, set |
Methods inherited from class de.jstacs.algorithms.optimization.DifferentiableFunction |
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findOneDimensionalMin |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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public static final DoesNothingLogPrior defaultInstance
Method Detail |
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public double evaluateFunction(double[] params)
Function
x
params
- the current vector
public void addGradientFor(double[] params, double[] grad)
LogPrior
addGradientFor
in class LogPrior
params
- the parametersgrad
- the vectorpublic int getDimensionOfScope()
Function
public LogPrior getNewInstance() throws CloneNotSupportedException
LogPrior
ScoringFunction
s that may be inside the instance. The ScoringFunction
s must be set by an invocation of the method LogPrior.set(boolean, ScoringFunction...)
.
getNewInstance
in class LogPrior
CloneNotSupportedException
LogPrior.set(boolean, ScoringFunction[])
public StringBuffer toXML() throws RuntimeException
LogPrior
set
has to be invoked after decoding.
toXML
in interface Storable
toXML
in class LogPrior
RuntimeException
public String getInstanceName()
LogPrior
getInstanceName
in class LogPrior
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