cobweb.html

< 数据挖掘--实用机器学习技术及java实现> 一书结合数据挖掘和机器学习的知识,作者陈述了自动挖掘模式的基础理论,并且以java语言实现了具有代表性的各类数据挖掘方法.例如:class

<PRE>
protected double <B>m_cutoff</B></PRE>
<DL>
<DD>Cutoff (minimum category utility).</DL>
<HR>

<A NAME="m_cobwebTree"><!-- --></A><H3>
m_cobwebTree</H3>
<PRE>
protected weka.clusterers.Cobweb.CNode <B>m_cobwebTree</B></PRE>
<DL>
<DD>Holds the root of the Cobweb tree.</DL>
<HR>

<A NAME="m_numberOfClusters"><!-- --></A><H3>
m_numberOfClusters</H3>
<PRE>
protected int <B>m_numberOfClusters</B></PRE>
<DL>
<DD>Number of clusters (nodes in the tree).</DL>
<HR>

<A NAME="m_numberSplits"><!-- --></A><H3>
m_numberSplits</H3>
<PRE>
protected int <B>m_numberSplits</B></PRE>
<DL>
</DL>
<HR>

<A NAME="m_numberMerges"><!-- --></A><H3>
m_numberMerges</H3>
<PRE>
protected int <B>m_numberMerges</B></PRE>
<DL>
</DL>
<HR>

<A NAME="m_saveInstances"><!-- --></A><H3>
m_saveInstances</H3>
<PRE>
protected boolean <B>m_saveInstances</B></PRE>
<DL>
<DD>Output instances in graph representation of Cobweb tree (Allows
 instances at nodes in the tree to be visualized in the Explorer).</DL>

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<A NAME="Cobweb()"><!-- --></A><H3>
Cobweb</H3>
<PRE>
public <B>Cobweb</B>()</PRE>
<DL>
</DL>

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<A NAME="buildClusterer(weka.core.Instances)"><!-- --></A><H3>
buildClusterer</H3>
<PRE>
public void <B>buildClusterer</B>(<A HREF="../../weka/core/Instances.html">Instances</A>&nbsp;data)
                    throws java.lang.Exception</PRE>
<DL>
<DD>Builds the clusterer.<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../weka/clusterers/Clusterer.html#buildClusterer(weka.core.Instances)">buildClusterer</A></CODE> in class <CODE><A HREF="../../weka/clusterers/Clusterer.html">Clusterer</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>data</CODE> - the training instances.<DT><B>Throws:</B><DD><CODE>java.lang.Exception</CODE> - if something goes wrong.</DL>
</DD>
</DL>
<HR>

<A NAME="clusterInstance(weka.core.Instance)"><!-- --></A><H3>
clusterInstance</H3>
<PRE>
public int <B>clusterInstance</B>(<A HREF="../../weka/core/Instance.html">Instance</A>&nbsp;instance)
                    throws java.lang.Exception</PRE>
<DL>
<DD>Classifies a given instance.<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../weka/clusterers/Clusterer.html#clusterInstance(weka.core.Instance)">clusterInstance</A></CODE> in class <CODE><A HREF="../../weka/clusterers/Clusterer.html">Clusterer</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>instance</CODE> - the instance to be assigned to a cluster<DT><B>Returns:</B><DD>the number of the assigned cluster as an interger
 if the class is enumerated, otherwise the predicted value<DT><B>Throws:</B><DD><CODE>java.lang.Exception</CODE> - if instance could not be classified
 successfully</DL>
</DD>
</DL>
<HR>

<A NAME="numberOfClusters()"><!-- --></A><H3>
numberOfClusters</H3>
<PRE>
public int <B>numberOfClusters</B>()
                     throws java.lang.Exception</PRE>
<DL>
<DD>Returns the number of clusters.<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../weka/clusterers/Clusterer.html#numberOfClusters()">numberOfClusters</A></CODE> in class <CODE><A HREF="../../weka/clusterers/Clusterer.html">Clusterer</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Throws:</B><DD><CODE>java.lang.Exception</CODE> - if something goes wrong.</DL>
</DD>
</DL>
<HR>

<A NAME="addInstance(weka.core.Instance)"><!-- --></A><H3>
addInstance</H3>
<PRE>
public void <B>addInstance</B>(<A HREF="../../weka/core/Instance.html">Instance</A>&nbsp;newInstance)
                 throws java.lang.Exception</PRE>
<DL>
<DD>Adds an instance to the Cobweb tree.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>newInstance</CODE> - the instance to be added<DT><B>Throws:</B><DD><CODE>java.lang.Exception</CODE> - if something goes wrong</DL>
</DD>
</DL>
<HR>

<A NAME="listOptions()"><!-- --></A><H3>
listOptions</H3>
<PRE>
public java.util.Enumeration <B>listOptions</B>()</PRE>
<DL>
<DD>Returns an enumeration describing the available options.<DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../../weka/core/OptionHandler.html#listOptions()">listOptions</A></CODE> in interface <CODE><A HREF="../../weka/core/OptionHandler.html">OptionHandler</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>an enumeration of all the available options.</DL>
</DD>
</DL>
<HR>

<A NAME="setOptions(java.lang.String[])"><!-- --></A><H3>
setOptions</H3>
<PRE>
public void <B>setOptions</B>(java.lang.String[]&nbsp;options)
                throws java.lang.Exception</PRE>
<DL>
<DD>Parses a given list of options.

 Valid options are:<p>

 -A <acuity> <br>
 Acuity. <p>

 -C <cutoff> <br>
 Cutoff. <p><DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../../weka/core/OptionHandler.html#setOptions(java.lang.String[])">setOptions</A></CODE> in interface <CODE><A HREF="../../weka/core/OptionHandler.html">OptionHandler</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>options</CODE> - the list of options as an array of strings<DT><B>Throws:</B><DD><CODE>java.lang.Exception</CODE> - if an option is not supported</DL>
</DD>
</DL>
<HR>

<A NAME="acuityTipText()"><!-- --></A><H3>
acuityTipText</H3>
<PRE>
public java.lang.String <B>acuityTipText</B>()</PRE>
<DL>
<DD>Returns the tip text for this property<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>tip text for this property suitable for
 displaying in the explorer/experimenter gui</DL>
</DD>
</DL>
<HR>

<A NAME="setAcuity(double)"><!-- --></A><H3>
setAcuity</H3>
<PRE>
public void <B>setAcuity</B>(double&nbsp;a)</PRE>
<DL>
<DD>set the acuity.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>a</CODE> - the acuity value</DL>
</DD>
</DL>
<HR>

<A NAME="getAcuity()"><!-- --></A><H3>
getAcuity</H3>
<PRE>
public double <B>getAcuity</B>()</PRE>
<DL>
<DD>get the acuity value<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>the acuity</DL>
</DD>
</DL>
<HR>

<A NAME="cutoffTipText()"><!-- --></A><H3>
cutoffTipText</H3>
<PRE>
public java.lang.String <B>cutoffTipText</B>()</PRE>
<DL>
<DD>Returns the tip text for this property<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>tip text for this property suitable for
 displaying in the explorer/experimenter gui</DL>
</DD>
</DL>
<HR>

<A NAME="setCutoff(double)"><!-- --></A><H3>
setCutoff</H3>
<PRE>
public void <B>setCutoff</B>(double&nbsp;c)</PRE>
<DL>
<DD>set the cutoff<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>c</CODE> - the cutof</DL>
</DD>
</DL>
<HR>

<A NAME="getCutoff()"><!-- --></A><H3>
getCutoff</H3>
<PRE>
public double <B>getCutoff</B>()</PRE>
<DL>
<DD>get the cutoff<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>the cutoff</DL>
</DD>
</DL>
<HR>

<A NAME="saveInstanceDataTipText()"><!-- --></A><H3>
saveInstanceDataTipText</H3>
<PRE>
public java.lang.String <B>saveInstanceDataTipText</B>()</PRE>
<DL>
<DD>Returns the tip text for this property<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>tip text for this property suitable for
 displaying in the explorer/experimenter gui</DL>
</DD>
</DL>
<HR>

<A NAME="getSaveInstanceData()"><!-- --></A><H3>
getSaveInstanceData</H3>
<PRE>
public boolean <B>getSaveInstanceData</B>()</PRE>
<DL>
<DD>Get the value of saveInstances.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>Value of saveInstances.</DL>
</DD>
</DL>
<HR>

<A NAME="setSaveInstanceData(boolean)"><!-- --></A><H3>
setSaveInstanceData</H3>
<PRE>
public void <B>setSaveInstanceData</B>(boolean&nbsp;newsaveInstances)</PRE>
<DL>
<DD>Set the value of saveInstances.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>newsaveInstances</CODE> - Value to assign to saveInstances.</DL>
</DD>
</DL>
<HR>

<A NAME="getOptions()"><!-- --></A><H3>
getOptions</H3>
<PRE>
public java.lang.String[] <B>getOptions</B>()</PRE>
<DL>
<DD>Gets the current settings of Cobweb.<DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../../weka/core/OptionHandler.html#getOptions()">getOptions</A></CODE> in interface <CODE><A HREF="../../weka/core/OptionHandler.html">OptionHandler</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>an array of strings suitable for passing to setOptions()</DL>
</DD>
</DL>
<HR>

<A NAME="toString()"><!-- --></A><H3>
toString</H3>
<PRE>
public java.lang.String <B>toString</B>()</PRE>
<DL>
<DD>Returns a description of the clusterer as a string.<DD><DL>
<DT><B>Overrides:</B><DD><CODE>toString</CODE> in class <CODE>java.lang.Object</CODE></DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>a string describing the clusterer.</DL>
</DD>
</DL>
<HR>

<A NAME="graph()"><!-- --></A><H3>
graph</H3>
<PRE>
public java.lang.String <B>graph</B>()
                       throws java.lang.Exception</PRE>
<DL>
<DD>Generates the graph string of the Cobweb tree<DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../../weka/core/Drawable.html#graph()">graph</A></CODE> in interface <CODE><A HREF="../../weka/core/Drawable.html">Drawable</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>a <code>String</code> value<DT><B>Throws:</B><DD><CODE>java.lang.Exception</CODE> - if an error occurs</DL>
</DD>
</DL>
<HR>

<A NAME="main(java.lang.String[])"><!-- --></A><H3>
main</H3>
<PRE>
public static void <B>main</B>(java.lang.String[]&nbsp;argv)</PRE>
<DL>
<DD><DL>
</DL>
</DD>
</DL>
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