root/gs3-extensions/maori-lang-detection/gen_SentenceDetection_model.sh @ 33357

Revision 33357, 6.2 KB (checked in by ak19, 2 months ago)

Minor changes

  • Property svn:executable set to *
Line 
1#!/bin/bash
2
3#####################################################################################################
4# Following instructions at
5# https://stackoverflow.com/questions/36516363/sentence-detection-with-opennlp
6# But contrary to their example, don't insert empty newlines separating the sentences input file
7# Each sentence just needs to be on its own line. But no empty lines between each sentence.
8#####################################################################################################
9
10# 1. Create training file of Maori sentences in the correct format
11# Train this on the 2011 set (rather than 2017) set of 100k Maori language sentences
12# because the 2011 one appears to have fewer accidentally incorporated English sentences
13
14
15if [ ! -z $1 ]; then
16    if [ "x$1" = "x--help" ]; then
17    echo ""
18    echo "Usage: $0 <mri sentences.txt>"
19    echo "   Try the one in ./opennlp-corpus/leipzig/data/mri_web_2011_100K-sentences.txt"
20    echo "   (Unzip mri-opennlp-corpus.tar.gz)"
21    echo "   It's better than the 100k sentences from 2017, as that contains a lot of English lines."
22    echo ""
23    exit
24    else
25    infile=$1
26    fi
27else
28    # use the file opennlp-corpus/leipzig/data/mri_web_2011_100K-sentences.txt as inputfile
29    # Check the file exists at the expected location. If not, check we have the tarball containing it and untar that.
30    # If the tarball doesn't exist, try to get what we want from svn if we have svn. If no svn either, bail.
31    if [ ! -f opennlp-corpus/leipzig/data/mri_web_2011_100K-sentences.txt ]; then
32    if [ -f mri-opennlp-corpus.tar.gz ]; then
33        tar -xvzf mri-opennlp-corpus.tar.gz
34    else
35        svn --help > /dev/null
36        if [ "x$?" != "x0" ]; then
37        echo "Attempted to train the Sentence Detector on Maori sentences on missing mri_web_2011_100K-sentences.txt"
38        echo "The tarball mri-opennlp-corpus.tar.gz (containing mri_web_2011_100K-sentences.txt) didn't exist either."
39        echo "And couldn't get opennlp-corpus/leipzig/data/mri_web_2011_100K-sentences.txt using SVN: no SVN."
40        echo "Exitting..."
41        exit
42        else
43        # Get just what we need from svn
44        # Based on https://www.apache.org/dist/opennlp/models/langdetect/1.8.3/README.txt
45        # To auto-confirm repeated svn https check, see https://serverfault.com/questions/37929/how-do-you-accept-an-ssl-certificate-through-the-svn-command-line
46        svn co --depth immediates --trust-server-cert --non-interactive https://svn.apache.org/repos/bigdata/opennlp/trunk opennlp-corpus
47        cd opennlp-corpus
48        svn up --set-depth immediates --trust-server-cert --non-interactive
49        cd leipzig
50        svn up --set-depth immediates --trust-server-cert --non-interactive
51        cd resources/
52        svn up --set-depth infinity --trust-server-cert --non-interactive
53        cd ../data
54        echo "About to download the sample Maori language 100k sentences file. This may take a while (<1 minute)."
55        svn up --trust-server-cert --non-interactive mri_web_2011_100K-sentences.txt
56        cd ..
57        # in opennlp-corpus/leipzig
58        chmod u+x create_langdetect_model.sh
59        cd ../..
60        fi
61    fi 
62    fi
63    infile=./opennlp-corpus/leipzig/data/mri_web_2011_100K-sentences.txt
64fi
65
66echo $infile
67
68#tail -100 $infile
69
70
71mkdir -p $OPENNLP_HOME/training_data
72sentences_train_file=$OPENNLP_HOME/training_data/mri-sent.train
73if [ -f "$trainfile" ]; then
74    echo "Removing existing $sentences_train_file"
75    rm "$sentences_train_file"
76fi
77
78# Get just the sentences in the inputfile (remove the starting number followed by tab from each line)
79# see https://stackoverflow.com/questions/36516363/sentence-detection-with-opennlp
80# Don't add an extra newline at end of each sentence (don't insert an empty line between each sentence)
81
82
83# https://stackoverflow.com/questions/7619438/bash-read-a-file-line-by-line-and-process-each-segment-as-parameters-to-other-p
84# how come it removes the first number automatically?
85#while read file num sentence
86#do
87#    echo "$num $sentence" >> $sentences_train_file
88#done < "$infile"
89
90# Don't add the extra newline at the end, creating empty lines between sentences output,
91# or the SentenceDetector in step 3 will do a poor job.
92# (The example at the stackoverflow link may have included newlines separating sentences for clarity.)
93#cat $infile | awk -F '\t' '{ print $2 "\n" }' > $sentences_train_file
94cat $infile | awk -F '\t' '{ print $2 }' > $sentences_train_file
95
96# Why did my way below not work?
97#    openNLP-lang-detect/opennlp-corpus/leipzig/data>echo "100000\tYWCA Boarding house : ĀwhinaServices and support Kei te pÅ«manawa o Tāmaki Makaurau a YMCA." | awk -F "\t" '{ print $2 }'
98# $1 contains everything and $2 nothing. Why?
99# The problem appears to be that echo behaves differently from cat and less. Ask Dr Bainbridge what makes echo different.
100# Note that I tried manually inserting \t, after copying the original line with tabspacing had no effect. Still no difference.
101# Note 2: echo doesn't appear to preserve copied tab spaces.
102
103
104# 2. Create mri sentences model from training sentences file
105#$OPENNLP_HOME/bin/opennlp SentenceDetectorTrainer -model mri-sent_trained.bin -lang en -data mri-sent.train -encoding UTF-8
106
107if [ "x$OPENNLP_HOME" = "x" ]; then
108    echo "OPENNLP_HOME not set, attempting to set it to apache-opennlp-1.9.1 (ENSURE THIS EXISTS OR SET OPENNLP_HOME YOURSELF!)"
109    if [ -d apache-opennlp-* ]; then
110    cd apache-opennlp-*
111    export OPENNLP_HOME=`pwd`
112    cd ..
113    else
114    echo "No OPENNLP_HOME set and could not find a subfolder 'apache-opennlp-...' to set it to."
115    echo "Set OPENNLP_HOME yourself before running this script. Exitting..."
116    fi
117fi
118
119mkdir -p $OPENNLP_HOME/models
120
121$OPENNLP_HOME/bin/opennlp SentenceDetectorTrainer -model $OPENNLP_HOME/models/mri-sent_trained.bin -lang en -data $sentences_train_file -encoding UTF-8
122
123
124# 3. Let's try to split some Maori language text into sentences using our model created from training on sentences.
125# http://opennlp.apache.org/docs/1.9.1/manual/opennlp.html#tools.cli.sentdetect
126#    Usage: opennlp SentenceDetector model < sentences
127echo ""
128echo "Testing the model."
129echo "Running the SentenceDetector with the generated mri-sent_trained.bin model on sample_mri_paragraphs.txt..."
130echo "****************************"
131$OPENNLP_HOME/bin/opennlp SentenceDetector $OPENNLP_HOME/models/mri-sent_trained.bin < models-trainingdata-and-sampletxts/sample_mri_paragraphs.txt
132echo "****************************"
133echo ""
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