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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE>class HtkFileDataSet</TITLE>
<META NAME="GENERATOR" CONTENT="DOC++ 3.4.8">
</HEAD>
<BODY BGCOLOR="#ffffff">
<H2>class <A HREF="#DOC.DOCU">HtkFileDataSet</A></H2></H2><BLOCKQUOTE>Creates a <TT>StdDataSet</TT> from a disk file in HTK format.</BLOCKQUOTE>
<HR>
<H2>Inheritance:</H2>
<APPLET CODE="ClassGraph.class" WIDTH=600 HEIGHT=155>
<param name=classes value="CObject,MObject.html,CDataSet,MDataSet.html,CEuclideanDataSet,MEuclideanDataSet.html,CStdDataSet,MStdDataSet.html,CHtkFileDataSet,MHtkFileDataSet.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.119.1">n_files</A></B>
<DD><I>the number of files to load</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif><!1><A HREF="IOHtk.html">IOHtk</A>** <B><A HREF="#DOC.119.2">htk</A></B>
<DD><I>for each file, an object IOHtk is created</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>int <B><A HREF="#DOC.119.3">window_size</A></B>
<DD><I>the size of the input window</I>
</DL></P>
<P><DL>
<DT><H3>Public Methods</H3><DD><DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif> <B><A HREF="#DOC.119.4">HtkFileDataSet</A></B>(char* <!1><A HREF="Measurer.html#DOC.30.2">file</A>, int window_size_ = 1, int max_load=-1)
<DD><I>Load <TT>file</TT> in memory.</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>virtual void <B><A HREF="#DOC.119.5">write</A></B>(char* dir_to_save=NULL)
<DD><I>save the data set on htk binary format in specifing directory</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>virtual void <B><A HREF="#DOC.119.6">prepareData</A></B>(bool* input_to_del=NULL)
<DD><I>Set pointers on datas stored on <TT>IOHtk</TT> object and remove unused columns </I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>virtual void <B><A HREF="#DOC.119.7">normalizeUsingDataSet</A></B>(<!1><A HREF="StdDataSet.html">StdDataSet</A>* data_norm)
<DD><I>Normalize the <TT>DataSet</TT> using the normalization values of another <TT>DataSet</TT>.</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>virtual void <B><A HREF="#DOC.119.8">normalize</A></B>()
<DD><I>Normalize the database</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>virtual int <B><A HREF="#DOC.119.9">removeUnlikelyFrames</A></B>(<!1><A HREF="Distribution.html">Distribution</A>* likely_distr, <!1><A HREF="Distribution.html">Distribution</A>* unlikely_distr, bool* mask = NULL)
<DD><I>Remove the frames considering as unlinkely and return the number of removed frames and if mask is not NULL remove unused data</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>virtual void <B><A HREF="#DOC.119.10">createMaskFromParam</A></B>(bool* mask)
<DD><I>Create a mask to remove log energy parameters</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>virtual void <B><A HREF="#DOC.119.11">loadFILE</A></B>(FILE* <!1><A HREF="Measurer.html#DOC.30.2">file</A>)
<DD><I>Load the normalization parameters</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>virtual void <B><A HREF="#DOC.119.12">saveFILE</A></B>(FILE* <!1><A HREF="Measurer.html#DOC.30.2">file</A>)
<DD><I>Save the normalization parameters</I>
</DL></P>
</DL>
<HR><H3>Inherited from <A HREF="StdDataSet.html">StdDataSet</A>:</H3>
<DL>
<P><DL>
<DT><H3>Public Fields</H3><DD><DT>
<IMG ALT="o" SRC=icon2.gif>real** <B>all_inputs</B>
<DT>
<IMG ALT="o" SRC=icon2.gif>real** <B>all_targets</B>
</DL></P>
<P><DL>
<DT><H3>Public Methods</H3><DD><DT>
<IMG ALT="o" SRC=icon2.gif>void <B>setInputs</B>(real** data_, int n_dim, int n_examples_)
<DT>
<IMG ALT="o" SRC=icon2.gif>void <B>setTargets</B>(real** y_, int n_targets_)
</DL></P>
</DL>
<HR><H3>Inherited from <A HREF="EuclideanDataSet.html">EuclideanDataSet</A>:</H3>
<DL>
<P><DL>
<DT><H3>Public Methods</H3><DD><DT>
<IMG ALT="o" SRC=icon2.gif>real <B>dotProduct</B>(int i, <!1><A HREF="List.html">List</A>* <!1><A HREF="QCMachine.html#DOC.40.7">y</A>)
<DT>
<IMG ALT="o" SRC=icon2.gif>real <B>realDotProduct</B>(int i, int j)
<DT>
<IMG ALT="o" SRC=icon2.gif>virtual real <B>realRealDotProduct</B>(int i, int j)
<DT>
<IMG ALT="o" SRC=icon2.gif>virtual real <B>realDotProduct</B>(int i, <!1><A HREF="List.html">List</A>* <!1><A HREF="QCMachine.html#DOC.40.7">y</A>)
<DT>
<IMG ALT="o" SRC=icon2.gif>virtual real <B>dotProduct</B>(<!1><A HREF="List.html">List</A>* x, <!1><A HREF="List.html">List</A>* <!1><A HREF="QCMachine.html#DOC.40.7">y</A>)
</DL></P>
<P><DL>
<DT><H3>Public Members</H3><DD><DT>
<IMG ALT="o" SRC=icon2.gif> <B>Dot product functions</B>
<DT>
<IMG ALT="o" SRC=icon2.gif> <B>Dot products between two examples.</B>
</DL></P>
</DL>
<HR><H3>Inherited from <A HREF="DataSet.html">DataSet</A>:</H3>
<DL>
<P><DL>
<DT><H3>Public Fields</H3><DD><DT>
<IMG ALT="o" SRC=icon2.gif>int* <B>selected_examples</B>
<DT>
<IMG ALT="o" SRC=icon2.gif>int <B>current_example</B>
<DT>
<IMG ALT="o" SRC=icon2.gif>int <B>n_targets</B>
<DT>
<IMG ALT="o" SRC=icon2.gif>void* <B>targets</B>
<DT>
<IMG ALT="o" SRC=icon2.gif>int <B>n_inputs</B>
<DT>
<IMG ALT="o" SRC=icon2.gif><!1><A HREF="List.html">List</A>* <B>inputs</B>
<DT>
<IMG ALT="o" SRC=icon2.gif>int <B>n_examples</B>
<DT>
<IMG ALT="o" SRC=icon2.gif>int <B>n_real_examples</B>
</DL></P>
<P><DL>
<DT><H3>Public Methods</H3><DD><DT>
<IMG ALT="o" SRC=icon2.gif>void <B>setExample</B>(int t)
<DT>
<IMG ALT="o" SRC=icon2.gif>virtual void <B>setRealExample</B>(int t)
<DT>
<IMG ALT="o" SRC=icon2.gif>void <B>pushSubset</B>(int* subset_, int n_examples_)
<DT>
<IMG ALT="o" SRC=icon2.gif>void <B>popSubset</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>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>Creates a <TT>StdDataSet</TT> from a disk file in HTK format.
As there are no targets in HTK datasets, we decided that they
point to the input vector (hence, can be used for Diabolo type of
problems for instance). Moreover, a window_size can be given such
that the real input vector <IMG BORDER=0 SRC=g000060.gif> in the concatenation of the
vectors from <IMG BORDER=0 SRC=g000061.gif> to <IMG BORDER=0 SRC=g000062.gif>, where <TT>window_size</TT> is equal
to <IMG BORDER=0 SRC=g000063.gif>.
<P>Finally, it can also be used to load multiple files at once.
<P></BLOCKQUOTE>
<DL>
<A NAME="n_files"></A>
<A NAME="DOC.119.1"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>int n_files</B></TT>
<DD>the number of files to load
<DL><DT><DD></DL><P>
<A NAME="htk"></A>
<A NAME="DOC.119.2"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B><!1><A HREF="IOHtk.html">IOHtk</A>** htk</B></TT>
<DD>for each file, an object IOHtk is created
<DL><DT><DD></DL><P>
<A NAME="window_size"></A>
<A NAME="DOC.119.3"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>int window_size</B></TT>
<DD>the size of the input window
<DL><DT><DD></DL><P>
<A NAME="HtkFileDataSet"></A>
<A NAME="DOC.119.4"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B> HtkFileDataSet(char* <!1><A HREF="Measurer.html#DOC.30.2">file</A>, int window_size_ = 1, int max_load=-1)</B></TT>
<DD>Load <TT>file</TT> in memory.
<UL>
<LI> <TT>window_size</TT> gives the number of frames per input.
<LI> if <TT>max_load</TT> > 0, it loads only the first <TT>max_load</TT> examples.
</UL>
<DL><DT><DD></DL><P>
<A NAME="write"></A>
<A NAME="DOC.119.5"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>virtual void write(char* dir_to_save=NULL)</B></TT>
<DD>save the data set on htk binary format in specifing directory
<DL><DT><DD></DL><P>
<A NAME="prepareData"></A>
<A NAME="DOC.119.6"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>virtual void prepareData(bool* input_to_del=NULL)</B></TT>
<DD>Set pointers on datas stored on <TT>IOHtk</TT> object and remove unused
columns
<DL><DT><DD></DL><P>
<A NAME="normalizeUsingDataSet"></A>
<A NAME="DOC.119.7"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>virtual void normalizeUsingDataSet(<!1><A HREF="StdDataSet.html">StdDataSet</A>* data_norm)</B></TT>
<DD>Normalize the <TT>DataSet</TT> using the normalization values
of another <TT>DataSet</TT>. If the other <TT>DataSet</TT> isn't
normalized, nothing happens...
<DL><DT><DD></DL><P>
<A NAME="normalize"></A>
<A NAME="DOC.119.8"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>virtual void normalize()</B></TT>
<DD>Normalize the database
<DL><DT><DD></DL><P>
<A NAME="removeUnlikelyFrames"></A>
<A NAME="DOC.119.9"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>virtual int removeUnlikelyFrames(<!1><A HREF="Distribution.html">Distribution</A>* likely_distr, <!1><A HREF="Distribution.html">Distribution</A>* unlikely_distr, bool* mask = NULL)</B></TT>
<DD>Remove the frames considering as unlinkely and return the number of
removed frames and if mask is not NULL remove unused data
<DL><DT><DD></DL><P>
<A NAME="createMaskFromParam"></A>
<A NAME="DOC.119.10"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>virtual void createMaskFromParam(bool* mask)</B></TT>
<DD>Create a mask to remove log energy parameters
<DL><DT><DD></DL><P>
<A NAME="loadFILE"></A>
<A NAME="DOC.119.11"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>virtual void loadFILE(FILE* <!1><A HREF="Measurer.html#DOC.30.2">file</A>)</B></TT>
<DD>Load the normalization parameters
<DL><DT><DD></DL><P>
<A NAME="saveFILE"></A>
<A NAME="DOC.119.12"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>virtual void saveFILE(FILE* <!1><A HREF="Measurer.html#DOC.30.2">file</A>)</B></TT>
<DD>Save the normalization parameters
<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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