sandbox/language_id: Adding logistic-regression.conf config file, for setting max_steps and normalizer for the classifier.

git-svn-id: https://svn.code.sf.net/p/kaldi/code/sandbox/language_id@3660 5e6a8d80-dfce-4ca6-a32a-6e07a63d50c8

egs/lre/v1/conf/logistic-regression.conf

@@ -0,0 +1,2 @@
+--max-steps=20
+--normalizer=0.002

egs/lre/v1/run_logistic_regression.sh

@@ -10,7 +10,7 @@
 set -e
 mfccdir=`pwd`/mfcc
 vaddir=`pwd`/mfcc
-
+config=conf/logistic-regression.conf
 
 awk '{print $2}' data/train/utt2lang  | sort -u | \
   awk '{print $1, NR-1}' >  exp/ivectors_train/languages.txt
@@ -23,7 +23,8 @@ train_ivectors=exp/ivectors_train/ivector.scp
 classes="ark:utils/sym2int.pl -f 2 exp/ivectors_train/languages.txt data/train/utt2lang|"
 
 . path.sh
-logistic-regression-train scp:$train_ivectors "$classes" $model 2>$log
+logistic-regression-train --config=$config scp:$train_ivectors \
+                          "$classes" $model 2>$log
 
 posterior_output=posteriors
 scores=posteriors