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#!/usr/bin/perl
## ====================================================================
##
## Copyright (c) 1996-2000 Carnegie Mellon University. All rights
## reserved.
##
## Redistribution and use in source and binary forms, with or without
## modification, are permitted provided that the following conditions
## are met:
##
## 1. Redistributions of source code must retain the above copyright
## notice, this list of conditions and the following disclaimer.
##
## 2. Redistributions in binary form must reproduce the above copyright
## notice, this list of conditions and the following disclaimer in
## the documentation and/or other materials provided with the
## distribution.
##
## This work was supported in part by funding from the Defense Advanced
## Research Projects Agency and the National Science Foundation of the
## United States of America, and the CMU Sphinx Speech Consortium.
##
## THIS SOFTWARE IS PROVIDED BY CARNEGIE MELLON UNIVERSITY ``AS IS'' AND
## ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
## THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
## PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY
## NOR ITS EMPLOYEES BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
## DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
## THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
##
## ====================================================================
##
## Author: Ricky Houghton
##
use strict;
use File::Copy;
use File::Basename;
use File::Spec::Functions;
use File::Path;
use lib catdir(dirname($0), updir(), 'lib');
use SphinxTrain::Config;
use SphinxTrain::Util;
#*****************************************************************************
# Baum-welch is done in several parts. This script gathers the results of
# all those parts and then computes the discrete probability distributions
# associated with all the states. It also computes the transition matrices.
#****************************************************************************
$| = 1; # Turn on autoflushing
die "USAGE: $0 <iter>" if @ARGV != 1;
my ($iter) = @ARGV;
my $modelname="${ST::CFG_EXPTNAME}.ci_lda";
my $processpart="01.lda_train";
opendir(ACCUMDIR, $ST::CFG_BWACCUM_DIR)
or die "Could not open $ST::CFG_BWACCUM_DIR: $!";
my @bwaccumdirs = map catdir($ST::CFG_BWACCUM_DIR, $_),
grep /^\Q${ST::CFG_EXPTNAME}_buff_/, readdir(ACCUMDIR);
closedir(ACCUMDIR);
my $hmmdir = "${ST::CFG_BASE_DIR}/model_parameters/$modelname";
mkdir ($hmmdir,0777);
my $means = "$hmmdir/means";
my $variances = "$hmmdir/variances";
my $mixture_weights = "$hmmdir/mixture_weights";
my $transition_matrices = "$hmmdir/transition_matrices";
if ($iter == 1) {
my $mdeffile = catfile($ST::CFG_BASE_DIR, 'model_architecture',
"${ST::CFG_EXPTNAME}.ci.mdef");
# Copy the mdef and fillerdict files into the new HMM directory
copy($mdeffile, catfile($hmmdir, 'mdef'))
or die "Failed to copy $mdeffile to $hmmdir/mdef: $!";
copy($ST::CFG_FILLERDICT, catfile($hmmdir, 'noisedict'))
or die "Failed to copy $ST::CFG_FILLERDICT to $hmmdir/noisedict: $!";
SubstParams($ST::CFG_FEATPARAMS, catfile($hmmdir, 'feat.params'));
}
my $logdir = "${ST::CFG_LOG_DIR}/$processpart";
mkdir ($logdir,0777);
my $logfile = "$logdir/${ST::CFG_EXPTNAME}.${iter}.norm.log";
Log("Normalization for iteration: $iter", 'result');
my $return_value = RunTool
('norm', $logfile, 0,
-accumdir => join(",", @bwaccumdirs),
-mixwfn => $mixture_weights,
-tmatfn => $transition_matrices,
-meanfn => $means,
-varfn => $variances,
-fullvar => $ST::CFG_FULLVAR
);
if ($return_value) {
LogError ("Failed to start norm");
}
exit ($return_value);
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