bayesianboosting.html

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<A NAME="learn(com.rapidminer.example.ExampleSet)"><!-- --></A><H3>
learn</H3>
<PRE>
public <A HREF="../../../../../com/rapidminer/operator/Model.html" title="interface in com.rapidminer.operator">Model</A> <B>learn</B>(<A HREF="../../../../../com/rapidminer/example/ExampleSet.html" title="interface in com.rapidminer.example">ExampleSet</A>&nbsp;exampleSet)
            throws <A HREF="../../../../../com/rapidminer/operator/OperatorException.html" title="class in com.rapidminer.operator">OperatorException</A></PRE>
<DL>
<DD>Constructs a <code>Model</code> repeatedly running a weak learner,
 reweighting the training example set accordingly, and combining the
 hypothesis using the available weighted performance values. If the input
 contains a model, then this model is used as a starting point for
 weighting the examples.
<P>
<DD><DL>

<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../../../com/rapidminer/operator/OperatorException.html" title="class in com.rapidminer.operator">OperatorException</A></CODE></DL>
</DD>
</DL>
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<A NAME="prepareWeights(com.rapidminer.example.ExampleSet)"><!-- --></A><H3>
prepareWeights</H3>
<PRE>
protected double[] <B>prepareWeights</B>(<A HREF="../../../../../com/rapidminer/example/ExampleSet.html" title="interface in com.rapidminer.example">ExampleSet</A>&nbsp;exampleSet)</PRE>
<DL>
<DD>Creates a weight attribute if not yet done. It either backs up the old
 weoghts for restoring them later, or it fills the newly created attribute
 with the initial value of 1. If rescaling to equal class priors is
 activated then the weights are set accordingly.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>exampleSet</CODE> - the example set to be prepared
<DT><B>Returns:</B><DD>a <code>double[]</code> array containing the class priors.</DL>
</DD>
</DL>
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<A NAME="trainBaseModel(com.rapidminer.example.ExampleSet)"><!-- --></A><H3>
trainBaseModel</H3>
<PRE>
protected <A HREF="../../../../../com/rapidminer/operator/Model.html" title="interface in com.rapidminer.operator">Model</A> <B>trainBaseModel</B>(<A HREF="../../../../../com/rapidminer/example/ExampleSet.html" title="interface in com.rapidminer.example">ExampleSet</A>&nbsp;exampleSet)
                        throws <A HREF="../../../../../com/rapidminer/operator/OperatorException.html" title="class in com.rapidminer.operator">OperatorException</A></PRE>
<DL>
<DD>Runs the &quot;embedded&quot; learner on the example set and retuns a
 model.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>exampleSet</CODE> - an <code>ExampleSet</code> to train a model for
<DT><B>Returns:</B><DD>a <code>Model</code>
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../../../com/rapidminer/operator/OperatorException.html" title="class in com.rapidminer.operator">OperatorException</A></CODE></DL>
</DD>
</DL>
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<A NAME="reweightExamples(com.rapidminer.operator.learner.meta.WeightedPerformanceMeasures, com.rapidminer.example.ExampleSet)"><!-- --></A><H3>
reweightExamples</H3>
<PRE>
protected double <B>reweightExamples</B>(<A HREF="../../../../../com/rapidminer/operator/learner/meta/WeightedPerformanceMeasures.html" title="class in com.rapidminer.operator.learner.meta">WeightedPerformanceMeasures</A>&nbsp;wp,
                                  <A HREF="../../../../../com/rapidminer/example/ExampleSet.html" title="interface in com.rapidminer.example">ExampleSet</A>&nbsp;exampleSet)
                           throws <A HREF="../../../../../com/rapidminer/operator/OperatorException.html" title="class in com.rapidminer.operator">OperatorException</A></PRE>
<DL>
<DD>This method reweights the example set with respect to the
 <code>WeightedPerformanceMeasures</code> object. Please note that the
 weights will not be reset at any time, because they continuously change
 from one iteration to the next. This method does not change the priors of
 the classes.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>wp</CODE> - the WeightedPerformanceMeasures to use<DD><CODE>exampleSet</CODE> - <code>ExampleSet</code> to be reweighted
<DT><B>Returns:</B><DD>the total weight of examples as an error estimate
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../../../com/rapidminer/operator/OperatorException.html" title="class in com.rapidminer.operator">OperatorException</A></CODE></DL>
</DD>
</DL>
<HR>

<A NAME="getParameterTypes()"><!-- --></A><H3>
getParameterTypes</H3>
<PRE>
public java.util.List&lt;<A HREF="../../../../../com/rapidminer/parameter/ParameterType.html" title="class in com.rapidminer.parameter">ParameterType</A>&gt; <B>getParameterTypes</B>()</PRE>
<DL>
<DD>Adds the parameters &quot;number of iterations&quot; and &quot;model
 file&quot;.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../com/rapidminer/parameter/ParameterHandler.html#getParameterTypes()">getParameterTypes</A></CODE> in interface <CODE><A HREF="../../../../../com/rapidminer/parameter/ParameterHandler.html" title="interface in com.rapidminer.parameter">ParameterHandler</A></CODE><DT><B>Overrides:</B><DD><CODE><A HREF="../../../../../com/rapidminer/operator/Operator.html#getParameterTypes()">getParameterTypes</A></CODE> in class <CODE><A HREF="../../../../../com/rapidminer/operator/Operator.html" title="class in com.rapidminer.operator">Operator</A></CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
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