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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE>class Multinomial</TITLE>
<META NAME="GENERATOR" CONTENT="DOC++ 3.4.8">
</HEAD>
<BODY BGCOLOR="#ffffff">
<H2>class <A HREF="#DOC.DOCU">Multinomial</A></H2></H2><BLOCKQUOTE>This class can be used to model Multinomial Distributions.</BLOCKQUOTE>
<HR>
<H2>Inheritance:</H2>
<APPLET CODE="ClassGraph.class" WIDTH=600 HEIGHT=155>
<param name=classes value="CObject,MObject.html,CMachine,MMachine.html,CGradientMachine,MGradientMachine.html,CDistribution,MDistribution.html,CMultinomial,MMultinomial.html">
<param name=before value="M,M,M,M,M">
<param name=after value="Md_SPSPSP,Md_SPSP,Md_SP,Md_,M">
<param name=indent value="0,1,2,3,4">
<param name=arrowdir value="down">
</APPLET>
<HR>
<DL>
<P><DL>
<DT><H3>Public Fields</H3><DD><DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>int <B><A HREF="#DOC.102.1">n_values</A></B>
<DD><I>the number of different values that can take this discrete distribution</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>real <B><A HREF="#DOC.102.2">prior_weights</A></B>
<DD><I>the prior weight given to each value.</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif><!1><A HREF="List.html">List</A>* <B><A HREF="#DOC.102.3">initial_params</A></B>
<DD><I>optional initialization parameters</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>char* <B><A HREF="#DOC.102.4">initial_file</A></B>
<DD><I>optional initialization file</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>real* <B><A HREF="#DOC.102.5">log_weights</A></B>
<DD><I>the pointers to the parameters</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>real* <B><A HREF="#DOC.102.6">dlog_weights</A></B>
<DD><I>the pointers to the d_parameters</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>real* <B><A HREF="#DOC.102.7">weights_acc</A></B>
<DD><I>accumulators for EM</I>
</DL></P>
</DL>
<HR><H3>Inherited from <A HREF="Distribution.html">Distribution</A>:</H3>
<DL>
<P><DL>
<DT><H3>Public Fields</H3><DD><DT>
<IMG ALT="o" SRC=icon2.gif>int <B>n_observations</B>
<DT>
<IMG ALT="o" SRC=icon2.gif>int <B>tot_n_frames</B>
<DT>
<IMG ALT="o" SRC=icon2.gif>int <B>max_n_frames</B>
<DT>
<IMG ALT="o" SRC=icon2.gif>real <B>log_probability</B>
<DT>
<IMG ALT="o" SRC=icon2.gif>real* <B>log_probabilities</B>
</DL></P>
<P><DL>
<DT><H3>Public Methods</H3><DD><DT>
<IMG ALT="o" SRC=icon2.gif>virtual real <B>logProbability</B>(<!1><A HREF="List.html">List</A>* <!1><A HREF="SeqExample.html#DOC.107.3">inputs</A>)
<DT>
<IMG ALT="o" SRC=icon2.gif>virtual real <B>viterbiLogProbability</B>(<!1><A HREF="List.html">List</A>* <!1><A HREF="SeqExample.html#DOC.107.3">inputs</A>)
<DT>
<IMG ALT="o" SRC=icon2.gif>virtual real <B>frameLogProbability</B>(real* <!1><A HREF="SeqExample.html#DOC.107.4">observations</A>, real* <!1><A HREF="SeqExample.html#DOC.107.3">inputs</A>, int t)
<DT>
<IMG ALT="o" SRC=icon2.gif>virtual void <B>frameExpectation</B>(real* <!1><A HREF="SeqExample.html#DOC.107.4">observations</A>, real* <!1><A HREF="SeqExample.html#DOC.107.3">inputs</A>, int t)
<DT>
<IMG ALT="o" SRC=icon2.gif>virtual void <B>eMIterInitialize</B>()
<DT>
<IMG ALT="o" SRC=icon2.gif>virtual void <B>iterInitialize</B>()
<DT>
<IMG ALT="o" SRC=icon2.gif>virtual void <B>eMSequenceInitialize</B>(<!1><A HREF="List.html">List</A>* <!1><A HREF="SeqExample.html#DOC.107.3">inputs</A>)
<DT>
<IMG ALT="o" SRC=icon2.gif>virtual void <B>sequenceInitialize</B>(<!1><A HREF="List.html">List</A>* <!1><A HREF="SeqExample.html#DOC.107.3">inputs</A>)
<DT>
<IMG ALT="o" SRC=icon2.gif>virtual void <B>eMAccPosteriors</B>(<!1><A HREF="List.html">List</A>* <!1><A HREF="SeqExample.html#DOC.107.3">inputs</A>, real log_posterior)
<DT>
<IMG ALT="o" SRC=icon2.gif>virtual void <B>frameEMAccPosteriors</B>(real* <!1><A HREF="SeqExample.html#DOC.107.4">observations</A>, real log_posterior, real* <!1><A HREF="SeqExample.html#DOC.107.3">inputs</A>, int t)
<DT>
<IMG ALT="o" SRC=icon2.gif>virtual void <B>viterbiAccPosteriors</B>(<!1><A HREF="List.html">List</A>* <!1><A HREF="SeqExample.html#DOC.107.3">inputs</A>, real log_posterior)
<DT>
<IMG ALT="o" SRC=icon2.gif>virtual void <B>frameViterbiAccPosteriors</B>(real* <!1><A HREF="SeqExample.html#DOC.107.4">observations</A>, real log_posterior, real* <!1><A HREF="SeqExample.html#DOC.107.3">inputs</A>, int t)
<DT>
<IMG ALT="o" SRC=icon2.gif>virtual void <B>eMUpdate</B>()
<DT>
<IMG ALT="o" SRC=icon2.gif>virtual void <B>decode</B>(<!1><A HREF="List.html">List</A>* <!1><A HREF="SeqExample.html#DOC.107.3">inputs</A>)
<DT>
<IMG ALT="o" SRC=icon2.gif>virtual void <B>eMForward</B>(<!1><A HREF="List.html">List</A>* <!1><A HREF="SeqExample.html#DOC.107.3">inputs</A>)
<DT>
<IMG ALT="o" SRC=icon2.gif>virtual void <B>viterbiForward</B>(<!1><A HREF="List.html">List</A>* <!1><A HREF="SeqExample.html#DOC.107.3">inputs</A>)
<DT>
<IMG ALT="o" SRC=icon2.gif>virtual void <B>frameBackward</B>(real* <!1><A HREF="SeqExample.html#DOC.107.4">observations</A>, real* <!1><A HREF="QCMachine.html#DOC.40.5">alpha</A>, real* <!1><A HREF="SeqExample.html#DOC.107.3">inputs</A>, int t)
<DT>
<IMG ALT="o" SRC=icon2.gif>virtual void <B>viterbiBackward</B>(<!1><A HREF="List.html">List</A>* <!1><A HREF="SeqExample.html#DOC.107.3">inputs</A>, real* <!1><A HREF="QCMachine.html#DOC.40.5">alpha</A>)
</DL></P>
</DL>
<HR><H3>Inherited from <A HREF="GradientMachine.html">GradientMachine</A>:</H3>
<DL>
<P><DL>
<DT><H3>Public Fields</H3><DD><DT>
<IMG ALT="o" SRC=icon2.gif>bool <B>is_free</B>
<DT>
<IMG ALT="o" SRC=icon2.gif><!1><A HREF="List.html">List</A>* <B>params</B>
<DT>
<IMG ALT="o" SRC=icon2.gif><!1><A HREF="List.html">List</A>* <B>der_params</B>
<DT>
<IMG ALT="o" SRC=icon2.gif>int <B>n_params</B>
<DT>
<IMG ALT="o" SRC=icon2.gif>real* <B>beta</B>
</DL></P>
<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>virtual int <B>numberOfParams</B>()
<DT>
<IMG ALT="o" SRC=icon2.gif>virtual void <B>backward</B>(<!1><A HREF="List.html">List</A>* <!1><A HREF="SeqExample.html#DOC.107.3">inputs</A>, real* <!1><A HREF="QCMachine.html#DOC.40.5">alpha</A>)
<DT>
<IMG ALT="o" SRC=icon2.gif>virtual void <B>allocateMemory</B>()
<DT>
<IMG ALT="o" SRC=icon2.gif>virtual void <B>freeMemory</B>()
<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="Machine.html">Machine</A>:</H3>
<DL>
<P><DL>
<DT><H3>Public Fields</H3><DD><DT>
<IMG ALT="o" SRC=icon2.gif>int <B>n_inputs</B>
<DT>
<IMG ALT="o" SRC=icon2.gif>int <B>n_outputs</B>
<DT>
<IMG ALT="o" SRC=icon2.gif><!1><A HREF="List.html">List</A>* <B>outputs</B>
</DL></P>
<P><DL>
<DT><H3>Public Methods</H3><DD><DT>
<IMG ALT="o" SRC=icon2.gif>virtual void <B>forward</B>(<!1><A HREF="List.html">List</A>* <!1><A HREF="SeqExample.html#DOC.107.3">inputs</A>)
<DT>
<IMG ALT="o" SRC=icon2.gif>virtual void <B>reset</B>()
</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>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>This class can be used to model Multinomial Distributions.
They can be trained using either EM (with EMTrainer) or gradient descent
(with GMTrainer).
<P></BLOCKQUOTE>
<DL>
<A NAME="n_values"></A>
<A NAME="DOC.102.1"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>int n_values</B></TT>
<DD>the number of different values that can take this discrete distribution
<DL><DT><DD></DL><P>
<A NAME="prior_weights"></A>
<A NAME="DOC.102.2"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>real prior_weights</B></TT>
<DD>the prior weight given to each value. kind of smoother
<DL><DT><DD></DL><P>
<A NAME="initial_params"></A>
<A NAME="DOC.102.3"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B><!1><A HREF="List.html">List</A>* initial_params</B></TT>
<DD>optional initialization parameters
<DL><DT><DD></DL><P>
<A NAME="initial_file"></A>
<A NAME="DOC.102.4"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>char* initial_file</B></TT>
<DD>optional initialization file
<DL><DT><DD></DL><P>
<A NAME="log_weights"></A>
<A NAME="DOC.102.5"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>real* log_weights</B></TT>
<DD>the pointers to the parameters
<DL><DT><DD></DL><P>
<A NAME="dlog_weights"></A>
<A NAME="DOC.102.6"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>real* dlog_weights</B></TT>
<DD>the pointers to the d_parameters
<DL><DT><DD></DL><P>
<A NAME="weights_acc"></A>
<A NAME="DOC.102.7"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>real* weights_acc</B></TT>
<DD>accumulators for EM
<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>Samy Bengio (bengio@idiap.ch)
<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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