weightguidedselectionoperator.html
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><!--NewPage--><HTML><HEAD><!-- Generated by javadoc (build 1.5.0_13) on Mon Jul 14 01:36:22 CEST 2008 --><TITLE>WeightGuidedSelectionOperator (RapidMiner Class Documentation)</TITLE><META NAME="keywords" CONTENT="com.rapidminer.operator.features.selection.WeightGuidedSelectionOperator class"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="WeightGuidedSelectionOperator (RapidMiner Class Documentation)";}</SCRIPT><NOSCRIPT></NOSCRIPT></HEAD><BODY BGCOLOR="white" onload="windowTitle();"><!-- ========= START OF TOP NAVBAR ======= --><A NAME="navbar_top"><!-- --></A><A HREF="#skip-navbar_top" title="Skip navigation links"></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""><TR><TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_top_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY=""> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="class-use/WeightGuidedSelectionOperator.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> </TR></TABLE></TD><TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../../com/rapidminer/operator/features/selection/UniformSelection.html" title="class in com.rapidminer.operator.features.selection"><B>PREV CLASS</B></A> NEXT CLASS</FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../../index.html?com/rapidminer/operator/features/selection/WeightGuidedSelectionOperator.html" target="_top"><B>FRAMES</B></A> <A HREF="WeightGuidedSelectionOperator.html" target="_top"><B>NO FRAMES</B></A> <SCRIPT type="text/javascript"> <!-- if(window==top) { document.writeln('<A HREF="../../../../../allclasses-noframe.html"><B>All Classes</B></A>'); } //--></SCRIPT><NOSCRIPT> <A HREF="../../../../../allclasses-noframe.html"><B>All Classes</B></A></NOSCRIPT></FONT></TD></TR><TR><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: NESTED | <A HREF="#field_summary">FIELD</A> | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: <A HREF="#field_detail">FIELD</A> | <A HREF="#constructor_detail">CONSTR</A> | <A HREF="#method_detail">METHOD</A></FONT></TD></TR></TABLE><A NAME="skip-navbar_top"></A><!-- ========= END OF TOP NAVBAR ========= --><HR><!-- ======== START OF CLASS DATA ======== --><H2><FONT SIZE="-1">com.rapidminer.operator.features.selection</FONT><BR>Class WeightGuidedSelectionOperator</H2><PRE>java.lang.Object <IMG SRC="../../../../../resources/inherit.gif" ALT="extended by "><A HREF="../../../../../com/rapidminer/operator/Operator.html" title="class in com.rapidminer.operator">com.rapidminer.operator.Operator</A> <IMG SRC="../../../../../resources/inherit.gif" ALT="extended by "><A HREF="../../../../../com/rapidminer/operator/OperatorChain.html" title="class in com.rapidminer.operator">com.rapidminer.operator.OperatorChain</A> <IMG SRC="../../../../../resources/inherit.gif" ALT="extended by "><A HREF="../../../../../com/rapidminer/operator/features/FeatureOperator.html" title="class in com.rapidminer.operator.features">com.rapidminer.operator.features.FeatureOperator</A> <IMG SRC="../../../../../resources/inherit.gif" ALT="extended by "><B>com.rapidminer.operator.features.selection.WeightGuidedSelectionOperator</B></PRE><DL><DT><B>All Implemented Interfaces:</B> <DD><A HREF="../../../../../com/rapidminer/gui/wizards/ConfigurationListener.html" title="interface in com.rapidminer.gui.wizards">ConfigurationListener</A>, <A HREF="../../../../../com/rapidminer/gui/wizards/PreviewListener.html" title="interface in com.rapidminer.gui.wizards">PreviewListener</A>, <A HREF="../../../../../com/rapidminer/parameter/ParameterHandler.html" title="interface in com.rapidminer.parameter">ParameterHandler</A>, <A HREF="../../../../../com/rapidminer/tools/LoggingHandler.html" title="interface in com.rapidminer.tools">LoggingHandler</A></DD></DL><HR><DL><DT><PRE>public class <B>WeightGuidedSelectionOperator</B><DT>extends <A HREF="../../../../../com/rapidminer/operator/features/FeatureOperator.html" title="class in com.rapidminer.operator.features">FeatureOperator</A></DL></PRE><P><p> This operator uses input attribute weights to determine the order of features added to the feature set starting with the feature set containing only the feature with highest weight. The inner operators must provide a performance vector to determine the fitness of the current feature set, e.g. a cross validation of a learning scheme for a wrapper evaluation. Stops if adding the last <code>k</code> features does not increase the performance or if all features were added. The value of <code>k</code> can be set with the parameter <code>generations_without_improval</code>. </p><P><P><DL><DT><B>Version:</B></DT> <DD>$Id: WeightGuidedSelectionOperator.java,v 1.1 2006/04/14 11:42:27 ingomierswa Exp $</DD><DT><B>Author:</B></DT> <DD>Ingo Mierswa</DD></DL><HR><P><!-- =========== FIELD SUMMARY =========== --><A NAME="field_summary"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"><B>Field Summary</B></FONT></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static java.lang.String</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../../com/rapidminer/operator/features/selection/WeightGuidedSelectionOperator.html#PARAMETER_GENERATIONS_WITHOUT_IMPROVAL">PARAMETER_GENERATIONS_WITHOUT_IMPROVAL</A></B></CODE><BR> The parameter name for "Stop after n generations without improval of the performance (-1: stops if the number of features is reached).</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static java.lang.String</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../../com/rapidminer/operator/features/selection/WeightGuidedSelectionOperator.html#PARAMETER_USE_ABSOLUTE_WEIGHTS">PARAMETER_USE_ABSOLUTE_WEIGHTS</A></B></CODE><BR> The parameter name for "Indicates that the absolute values of the input weights should be used to determine the feature adding order.</TD></TR></TABLE> <A NAME="fields_inherited_from_class_com.rapidminer.operator.features.FeatureOperator"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TH ALIGN="left"><B>Fields inherited from class com.rapidminer.operator.features.<A HREF="../../../../../com/rapidminer/operator/features/FeatureOperator.html" title="class in com.rapidminer.operator.features">FeatureOperator</A></B></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../../../../com/rapidminer/operator/features/FeatureOperator.html#PARAMETER_CONSTRAINT_DRAW_RANGE">PARAMETER_CONSTRAINT_DRAW_RANGE</A>, <A HREF="../../../../../com/rapidminer/operator/features/FeatureOperator.html#PARAMETER_DRAW_DOMINATED_POINTS">PARAMETER_DRAW_DOMINATED_POINTS</A>, <A HREF="../../../../../com/rapidminer/operator/features/FeatureOperator.html#PARAMETER_LOCAL_RANDOM_SEED">PARAMETER_LOCAL_RANDOM_SEED</A>, <A HREF="../../../../../com/rapidminer/operator/features/FeatureOperator.html#PARAMETER_MAXIMAL_FITNESS">PARAMETER_MAXIMAL_FITNESS</A>, <A HREF="../../../../../com/rapidminer/operator/features/FeatureOperator.html#PARAMETER_PLOT_GENERATIONS">PARAMETER_PLOT_GENERATIONS</A>, <A HREF="../../../../../com/rapidminer/operator/features/FeatureOperator.html#PARAMETER_POPULATION_CRITERIA_DATA_FILE">PARAMETER_POPULATION_CRITERIA_DATA_FILE</A>, <A HREF="../../../../../com/rapidminer/operator/features/FeatureOperator.html#PARAMETER_SHOW_POPULATION_PLOTTER">PARAMETER_SHOW_POPULATION_PLOTTER</A>, <A HREF="../../../../../com/rapidminer/operator/features/FeatureOperator.html#PARAMETER_SHOW_STOP_DIALOG">PARAMETER_SHOW_STOP_DIALOG</A>, <A HREF="../../../../../com/rapidminer/operator/features/FeatureOperator.html#PARAMETER_USER_RESULT_INDIVIDUAL_SELECTION">PARAMETER_USER_RESULT_INDIVIDUAL_SELECTION</A></CODE></TD></TR></TABLE> ⌨️ 快捷键说明
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