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184 lines
6.2 KiB
184 lines
6.2 KiB
#!/usr/bin/perl -w
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# $Id: extract.pl 490579 2005-12-22 12:32:17Z scripty $
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# This file is part of the TDE project
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# Copyright (C) 2001 Daniel Naber <daniel.naber@t-online.de>
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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# Extract information from WordNet data files - only useful for development.
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# cat together all of WordNet's data.* files and call this script. As a second
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# argument you can use a word frequency list as "Alphabetical frequency list of
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# the whole corpus (lemmatized)" on http://ucrel.lancs.ac.uk/bncfreq/flists.html
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# This will remove all words whcih are not in the list, i.e. words that are rare.
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#
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# Output of this script is:
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# ;syn1;syn2;...;#;hyper1;hyper2;...;
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# TODO:
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# -"close" and "closely" are synonym which can irritate people!?
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# -document this + clean up a bit
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use strict;
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sub prg()
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{
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my $prefix = "";
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# TODO?: prefix (n,v,a or r) per line won't work as each word
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# can have a different prefix (it's rare but it happens)
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my $filename = $ARGV[0];
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my $filename_stat = $ARGV[1];
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if( ! $filename ) {
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print "Usage: $0 <wordnet_file> [occurence_statistics_file]\n";
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exit;
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}
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# read word frequency statistics to later filter out uncommon words:
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# format:
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# abuse Verb % 12 97 0.92
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# @ @ abuse 2 82 0.91
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# lines with "@" are non-lemmatized word forms
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my %stats; # (lemmatized_term,occurences_in_1_million_words)
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if( $filename_stat ) {
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open(IN, "<$filename_stat") || die "Cannot open '$filename_stat': $!";
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while(<IN>) {
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my $line = $_;
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my @ar = split(/\t/, $line);
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if( $ar[1] eq '@' ) {
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#print STDERR "$ar[3] -- $ar[4]\n";
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$stats{lc($ar[1])} = $ar[4];
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} else {
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#print "$ar[1] -- $ar[4]\n";
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$stats{lc($ar[1])} = $ar[4];
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}
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}
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close(IN);
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}
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# build hashtable of synsets:
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open(IN, "<$filename") || die "Cannot open '$filename': $!";
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my %data;
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while(<IN>) {
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my $line = $_;
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next if( $line =~ m/^ / ); # copyright notice
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my @parts = split(/\s+/, $line);
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my $sysnset = "";
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my $occurences = hex($parts[3]);
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if( $occurences > 10 ) {
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#print STDERR "** $occurences synonyms ($line)\n";
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}
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for(my $i = 0; $i < 2*$occurences; $i += 2) {
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my $syn = $parts[4+$i];
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if( ! $syn ) {
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next;
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}
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$sysnset .= $syn.";";
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}
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$data{$parts[0]} = $sysnset;
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}
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close(IN);
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print <<__EOF;
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1 This software and database is being provided to you, the LICENSEE,
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2 Princeton University under the following license. By obtaining, using
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2 and/or copying this software and database, you agree that you have read,
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3 understood, and will comply with these terms and conditions.:
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4
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5 Permission to use, copy, modify and distribute this software and database
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6 and its documentation for any purpose and without fee or royalty is hereby
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7 granted, provided that you agree to comply with the following copyright
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8 notice and statements, including the disclaimer, and that the same appear
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9 on ALL copies of the software, database and documentation, including
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10 modifications that youmake for internal use or for distribution.
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11
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12 WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
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13
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14 THIS SOFTWARE AND DATABASE IS PROVIDED "AS IS" AND PRINCETON UNIVERSITY
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15 MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED. BY WAY OF
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16 EXAMPLE, BUT NOT LIMITATION, PRINCETON UNIVERSITY MAKES NO REPRESENTATIONS
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17 OR WARRANTIES OF MERCHANT- ABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE
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18 OR THAT THE USE OF THE LICENSED SOFTWARE, DATABASE OR DOCUMENTATION WILL
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19 NOT INFRINGE ANY THIRD PARTY PATENTS, COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS.
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20
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21 The name of Princeton University or Princeton may not be used in advertising
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22 or publicity pertaining to distribution of the software and/or database.
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23 Title to copyright in this software, database and any associated documentation
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24 shall at all times remain with Princeton University and LICENSEE agrees to
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25 preserve same.
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__EOF
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# for each synset, find its hypernyms:
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open(IN, "<$filename") || die "Cannot open '$filename': $!";
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while(<IN>) {
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my $line = $_;
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next if( $line =~ m/^ / ); # copyright notice
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my @parts = split(/\s+/, $line);
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my $pos = 0;
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my $occurences = hex($parts[3]);
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#print STDERR "# $parts[4] $occurences\n";
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my $line_result = "";
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my $occurs = 0; # how often does it occur in texts according to the statistics?
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for(my $i = 0; $i < 2*$occurences; $i += 2) {
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my $syn = $parts[4+$i];
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if( ! $syn ) {
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next;
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}
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$line_result .= $syn.";";
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#print "##".$syn."\n";
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#print "$syn occurs: ".$stats{$syn}."\n";
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if( $filename_stat && $stats{lc($syn)} ) {
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$occurs += $stats{lc($syn)};
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}
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}
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$line_result =~ s/_/ /g;
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if( $filename_stat ) {
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if( $occurs > 0 ) { # occurences of all synonyms together
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$line_result = "$prefix;$line_result";
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} else {
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next;
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}
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} else {
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$line_result = "$prefix;$line_result";
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}
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my $ct = 0;
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my $hyper = "";
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#print "**$line:\n";
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# walk through the hypernyms (resp "similar" for adjectives):
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while( $line =~ m!(\@|\&) (.*?) (.*?) (.*?)!ig ) {
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#print "@ $1 $2\n";
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if( $data{$2} ) {
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#print "OK\n";
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$hyper .= $data{$2};
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$ct++;
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}
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}
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#print "syns: $occurences, hypers: $ct\n";
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if($ct > 0) {
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$hyper =~ s/_/ /g;
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$line_result .= "#;$hyper\n";
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} else {
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$line_result .= "#\n";
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}
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if( $occurences > 1 || $ct > 0 ) {
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$line_result =~ s/\((a|p|ip)\)//igs; # attributive or prenomial use isn't so interesting
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print "$line_result";
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}
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}
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close(IN);
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}
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prg();
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