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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"><!--Converted with LaTeX2HTML 2K.1beta (1.48)original version by: Nikos Drakos, CBLU, University of Leeds* revised and updated by: Marcus Hennecke, Ross Moore, Herb Swan* with significant contributions from: Jens Lippmann, Marek Rouchal, Martin Wilck and others --><HTML><HEAD><TITLE>Nomenclature</TITLE><META NAME="description" CONTENT="Nomenclature"><META NAME="keywords" CONTENT="H2M, H2M/cnt, Hidden Markov Model, HMM, Mixture model, Vector Quantization, Expectation Maximization, EM, Multivariate Gaussian, Count data, Poisson, Negative binomial, MATLAB, OCTAVE, GPL"><META NAME="resource-type" CONTENT="document"><META NAME="distribution" CONTENT="global"><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1"><META NAME="Generator" CONTENT="LaTeX2HTML v2K.1beta"><META HTTP-EQUIV="Content-Style-Type" CONTENT="text/css"><LINK REL="STYLESHEET" HREF="h2m.css"><LINK REL="next" HREF="node16.html"><LINK REL="previous" HREF="node14.html"><LINK REL="up" HREF="node14.html"><LINK REL="next" HREF="node16.html"></HEAD><BODY BGCOLOR="ivory"><!--Navigation Panel--><B> Next:</B> <A NAME="tex2html276" HREF="node16.html">Data structures</A><B>Up:</B> <A NAME="tex2html272" HREF="node14.html">The H2M/cnt extension: models</A><B> Previous:</B> <A NAME="tex2html266" HREF="node14.html">The H2M/cnt extension: models</A><P><!--End of Navigation Panel--><H2><A NAME="SECTION00041000000000000000">Nomenclature</A></H2>The names of the functions in the <TT>H2M/cnt</TT> extension follow these conventions:<DL><DT><STRONG>p*</STRONG></DT><DD><B>P</B>oisson something...</DD><DT><STRONG>pm*_</STRONG></DT><DD>function for <B>P</B>oisson <B>M</B>ixture modeling</DD><DT><STRONG>ph*_</STRONG></DT><DD>function for <B>P</B>oisson <B>H</B>idden Markov modeling</DD><DT><STRONG>nb*</STRONG></DT><DD><B>N</B>egative <B>B</B>inomial something..</DD><DT><STRONG>nbh_</STRONG></DT><DD>function for <B>N</B>egative <B>B</B>inomial <B>H</B>idden Markov modeling</DD></DL>The meaning of the suffix is similar to what has been used for the main <TT>H2M</TT> functions:<DL><DT><STRONG>*_ch</STRONG></DT><DD><B>CH</B>ec<B>k</B>s that the data structure is correct (and return the model dimension)</DD><DT><STRONG>*_gen</STRONG></DT><DD><B>GEN</B>erates simulated data from the model</DD><DT><STRONG>*_em</STRONG></DT><DD><B>EM</B> estimation of the parameters of the model</DD><DT><STRONG>*_vit</STRONG></DT><DD>Maximum a posteriori estimation of the sequence of states using dynamic programming (also known as <B>VIT</B>erbi algorithm)</DD></DL><P>Note that only the high-level function *_em is provided (in the main <TT>H2M</TT> functions, EM estimation is split into several routines which can usedseparately such as <code>gauseval</code>, <code>hmm_fb</code>, <code>hmm_tran</code> and<code>hmm_dens</code>).<P><BR><HR><ADDRESS>Olivier Cappé, Aug 24 2001</ADDRESS></BODY></HTML>
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