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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<TITLE>class QCTrainer</TITLE>
<META NAME="GENERATOR" CONTENT="DOC++ 3.4.8">
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<H2>class <A HREF="#DOC.DOCU">QCTrainer</A></H2></H2><BLOCKQUOTE>Train a <TT>QCMachine</TT>.</BLOCKQUOTE>
<HR>
<H2>Inheritance:</H2>
<APPLET CODE="ClassGraph.class" WIDTH=600 HEIGHT=95>
<param name=classes value="CObject,MObject.html,CTrainer,MTrainer.html,CQCTrainer,MQCTrainer.html">
<param name=before value="M,M,M">
<param name=after value="Md_SP,Md_,M">
<param name=indent value="0,1,2">
<param name=arrowdir value="down">
</APPLET>
<HR>
<DL>
<P><DL>
<DT><H3>Public Methods</H3><DD><DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif> <B><A HREF="#DOC.41.1">QCTrainer</A></B>(<!1><A HREF="QCMachine.html">QCMachine</A>* qcmachine_, <!1><A HREF="DataSet.html">DataSet</A>* data_, <!1><A HREF="QCCache.html">QCCache</A>* cache_)
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>void <B><A HREF="#DOC.41.2">train</A></B>(<!1><A HREF="List.html">List</A>* measurers)
<DD><I>Train it.</I>
</DL></P>
</DL>
<HR><H3>Inherited from <A HREF="Trainer.html">Trainer</A>:</H3>
<DL>
<P><DL>
<DT><H3>Public Methods</H3><DD><DT>
<IMG ALT="o" SRC=icon2.gif>virtual void <B>test</B>(<!1><A HREF="List.html">List</A>* measurers)
<DT>
<IMG ALT="o" SRC=icon2.gif>virtual void <B>testExample</B>(<!1><A HREF="List.html">List</A>* measurers, int t)
<DT>
<IMG ALT="o" SRC=icon2.gif>virtual void <B>crossValidate</B>(int k_fold, <!1><A HREF="List.html">List</A>* train_measurers, <!1><A HREF="List.html">List</A>* test_measurers, <!1><A HREF="List.html">List</A>* cross_valid_measurers=NULL)
<DT>
<IMG ALT="o" SRC=icon2.gif>virtual void <B>loadFILE</B>(FILE* <!1><A HREF="Measurer.html#DOC.30.2">file</A>)
<DT>
<IMG ALT="o" SRC=icon2.gif>virtual void <B>saveFILE</B>(FILE* <!1><A HREF="Measurer.html#DOC.30.2">file</A>)
</DL></P>
</DL>
<HR><H3>Inherited from <A HREF="Object.html">Object</A>:</H3>
<DL>
<P><DL>
<DT><H3>Public Methods</H3><DD><DT>
<IMG ALT="o" SRC=icon2.gif>virtual void <B>init</B>()
<DT>
<IMG ALT="o" SRC=icon2.gif>void <B>addOption</B>(const char* <!1><A HREF="SeqExample.html#DOC.107.9">name</A>, int size, void* <!1><A HREF="Vec.html#DOC.81.3">ptr</A>, const char* <!1><A HREF="CmdLine.html#DOC.7.3">help</A>="", bool is_allowed_after_init=false)
<DT>
<IMG ALT="o" SRC=icon2.gif>void <B>addIOption</B>(const char* <!1><A HREF="SeqExample.html#DOC.107.9">name</A>, int* <!1><A HREF="Vec.html#DOC.81.3">ptr</A>, int init_value, const char* <!1><A HREF="CmdLine.html#DOC.7.3">help</A>="", bool is_allowed_after_init=false)
<DT>
<IMG ALT="o" SRC=icon2.gif>void <B>addROption</B>(const char* <!1><A HREF="SeqExample.html#DOC.107.9">name</A>, real* <!1><A HREF="Vec.html#DOC.81.3">ptr</A>, real init_value, const char* <!1><A HREF="CmdLine.html#DOC.7.3">help</A>="", bool is_allowed_after_init=false)
<DT>
<IMG ALT="o" SRC=icon2.gif>void <B>addBOption</B>(const char* <!1><A HREF="SeqExample.html#DOC.107.9">name</A>, bool* <!1><A HREF="Vec.html#DOC.81.3">ptr</A>, bool init_value, const char* <!1><A HREF="CmdLine.html#DOC.7.3">help</A>="", bool is_allowed_after_init=false)
<DT>
<IMG ALT="o" SRC=icon2.gif>void <B>setOption</B>(const char* <!1><A HREF="SeqExample.html#DOC.107.9">name</A>, void* <!1><A HREF="Vec.html#DOC.81.3">ptr</A>)
<DT>
<IMG ALT="o" SRC=icon2.gif>void <B>setIOption</B>(const char* <!1><A HREF="SeqExample.html#DOC.107.9">name</A>, int option)
<DT>
<IMG ALT="o" SRC=icon2.gif>void <B>setROption</B>(const char* <!1><A HREF="SeqExample.html#DOC.107.9">name</A>, real option)
<DT>
<IMG ALT="o" SRC=icon2.gif>void <B>setBOption</B>(const char* <!1><A HREF="SeqExample.html#DOC.107.9">name</A>, bool option)
<DT>
<IMG ALT="o" SRC=icon2.gif>void <B>load</B>(const char* filename)
<DT>
<IMG ALT="o" SRC=icon2.gif>void <B>save</B>(const char* filename)
</DL></P>
</DL>
<A NAME="DOC.DOCU"></A>
<HR>
<H2>Documentation</H2>
<BLOCKQUOTE>Train a <TT>QCMachine</TT>.
With the conventions of QCMachine.h,
Q is given by the class QCCache (in <TT>cache</TT>)
<P>Options:
<TABLE BORDER>
<TR><TD>
"unshrink" </TD><TD> bool </TD><TD> unshrink or not unshrink </TD><TD> [false] </TD></TR><TR><TD>
"max unshrink" </TD><TD> int </TD><TD> maximal number of unshrinking </TD><TD> [1] </TD></TR><TR><TD>
"iter shrink" </TD><TD> int </TD><TD> minimal number of iterations to shrink</TD><TD> [100] </TD></TR><TR><TD>
"eps shrink" </TD><TD> real </TD><TD> shrinking accuracy </TD><TD> [1E-4 (f) 1E-9 (d)] </TD></TR><TR><TD>
"end accuracy" </TD><TD> real </TD><TD> end accuracy </TD><TD> [0.01] </TD></TR><TR><TD>
"iter message" </TD><TD> int </TD><TD> number of iterations between messages </TD><TD> [1000]
</TR></TABLE>
<P>
Note: "iter shrink" must be carefully chosen.
Read http://www.ai.mit.edu/projects/jmlr/papers/volume1/collobert01a/collobert01a.ps.gz
for more details.
<P></BLOCKQUOTE>
<DL>
<A NAME="QCTrainer"></A>
<A NAME="DOC.41.1"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B> QCTrainer(<!1><A HREF="QCMachine.html">QCMachine</A>* qcmachine_, <!1><A HREF="DataSet.html">DataSet</A>* data_, <!1><A HREF="QCCache.html">QCCache</A>* cache_)</B></TT>
<DL><DT><DD></DL><P>
<A NAME="train"></A>
<A NAME="DOC.41.2"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>void train(<!1><A HREF="List.html">List</A>* measurers)</B></TT>
<DD>Train it.
Before calling this function, <TT>grad</TT> in <TT>qcmachine</TT>
must contain the gradient of QP(alpha) with respect
to alpha = 0.
<P>( = <IMG BORDER=0 SRC=g000032.gif>, with the conventions of QCMachine.h)
<P>Moreover <TT>alpha</TT> in <TT>qcmachine</TT> has to be zero.
<DL><DT><DD></DL><P></DL>
<HR><DL><DT><B>This class has no child classes.</B></DL>
<DL><DT><DT><B>Author:</B><DD>Ronan Collobert (collober@iro.umontreal.ca)
<DT><B>See Also:</B><DD><!1><A HREF="QCCache.html">QCCache</A>
<BR><!1><A HREF="QCMachine.html">QCMachine</A><BR><DD></DL><P><P><I><A HREF="index.html">Alphabetic index</A></I> <I><A HREF="HIER.html">HTML hierarchy of classes</A> or <A HREF="HIERjava.html">Java</A></I></P><HR>
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