www.pudn.com > sphinx_recipe.zip > kmeans.pl

#!/usr/bin/perl
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## ====================================================================
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## Author: Ricky Houghton 
##

my $index = 0;
if (lc($ARGV[0]) eq '-cfg') {
    $cfg_file = $ARGV[1];
    $index = 2;
} else {
    $cfg_file = "etc/sphinx_train.cfg";
}

if (! -s "$cfg_file") {
    print ("unable to find default configuration file, use -cfg file.cfg or create etc/sphinx_train.cfg for default\n");
    exit -3;
}
require $cfg_file;
require "$CFG_SCRIPT_DIR/util/utils.pl";

#***************************************************************************
# Script to find the VQ codebooks for the training set.
# The codewords in the codebook will be used later as the means of
# clusters for the Discrete HMMs.
#***************************************************************************

#TODO - Finish usage
#print "Usage: $0\n";

my ($hmmdir,$outhmm,$segdmpdir,$dumpfile,$logfile);

$| = 1; # Turn on autoflushing
&ST_Log ("   KMeans ");

# Definitions
$hmmdir = "$CFG_BASE_DIR/model_parameters";
mkdir ($hmmdir,0777) unless -d $hmmdir;

$outhmm  = "$hmmdir/${CFG_EXPTNAME}${CFG_DIRLABEL}.ci_flatinitial";
mkdir ($outhmm,0777) unless -d $outhmm;

$segdmpdir = "$CFG_BASE_DIR/bwaccumdir/${CFG_EXPTNAME}${CFG_DIRLABEL}_buff_1";
mkdir ($segdmpdir,0777) unless -d $segdmpdir;

$dumpfile = "$segdmpdir/${CFG_EXPTNAME}${CFG_DIRLABEL}.dmp";

$logdir = "$CFG_LOG_DIR/01.vector_quantize";
mkdir ($logdir,0777) unless -d $logdir;
$logfile = "$logdir/${CFG_EXPTNAME}${CFG_DIRLABEL}.kmeans.log";

&ST_HTML_Print ("\t" . &ST_FormatURL("$logfile", "Log File") . " ");

#set VQ = ~rsingh/09..sphinx3code/trainer/bin.alpha/kmeans_init
#$VQ = "$CFG_BIN_DIR/kmeans_init";
# -grandvar   yes   

$| = 1;
my $cmd = "\"${CFG_BIN_DIR}/kmeans_init\" -gthobj single -stride 1 -ntrial 1 -minratio 0.001 -ndensity $CFG_INITIAL_NUM_DENSITIES -meanfn \"$outhmm/means\" -varfn \"$outhmm/variances\" -reest no -segdmpdirs \"$segdmpdir\" -segdmpfn \"$dumpfile\" -ceplen ${CFG_VECTOR_LENGTH} -feat ${CFG_FEATURE} -agc $CFG_AGC -cmn ${CFG_CMN}";

exit (RunTool($cmd, $logfile, 0));