From 8bdea2036a924302a569722359106a2d8a51fb17 Mon Sep 17 00:00:00 2001 From: Waleed Ammar Date: Wed, 13 Nov 2013 19:28:07 -0500 Subject: 1) fix the call to ibm model 1 aligner, 2) create a makefile target for generating wordpair features, 3) optionally generate sparse affix features (default behavior is still identical). --- .../support/generate_word_pair_features.pl | 63 +++++++++++++++++++++- 1 file changed, 62 insertions(+), 1 deletion(-) (limited to 'word-aligner/support') diff --git a/word-aligner/support/generate_word_pair_features.pl b/word-aligner/support/generate_word_pair_features.pl index 54b89ce1..f3fdf149 100755 --- a/word-aligner/support/generate_word_pair_features.pl +++ b/word-aligner/support/generate_word_pair_features.pl @@ -2,7 +2,7 @@ use utf8; use strict; -my ($effile, $model1, $imodel1, $orthof, $orthoe, $class_e, $class_f, $sparse_m1) = @ARGV; +my ($effile, $model1, $imodel1, $orthof, $orthoe, $class_e, $class_f, $sparse_m1, $use_prefixes, $use_suffixes) = @ARGV; die "Usage: $0 corpus.fr-en corpus.f-e.full-model1 corpus.e-f.full-model1 corpus.orthonorm-dict.f corpus.orthnorm-dict.e class.e class.f corpus.f-e.model1\n" unless $effile && -f $effile && $model1 && -f $model1 && $imodel1 && -f $imodel1 && $orthof && -f $orthof && $orthoe && -f $orthoe && -f $class_e && -f $class_f && $sparse_m1 && -f $sparse_m1; my %eclass = (); @@ -253,10 +253,71 @@ for my $f (sort keys %fdict) { push @feats, "PuncMiss=1"; } } + if ($use_prefixes) { + my $prefix1 = prefix_to_type($f, $e, 1); + if (length $prefix1 > 0 && !$is_null) { push @feats, $prefix1."=1";} + my $prefix2 = prefix_to_type($f, $e, 2); + if (length $prefix2 > 0 && !$is_null) { push @feats, $prefix2."=1";} + my $prefix3 = prefix_to_type($f, $e, 3); + if (length $prefix3 > 0 && !$is_null) { push @feats, $prefix3."=1";} + my $prefix1_reverse = prefix_to_type($e, $f, 1); + if (length $prefix1_reverse > 0 && !$is_null) { push @feats, $prefix1_reverse."=1";} + my $prefix2_reverse = prefix_to_type($e, $f, 2); + if (length $prefix2_reverse > 0 && !$is_null) { push @feats, $prefix2_reverse."=1";} + my $prefix3_reverse = prefix_to_type($e, $f, 3); + if (length $prefix3_reverse > 0 && !$is_null) { push @feats, $prefix3_reverse."=1";} + } + if ($use_suffixes) { + my $suffix1 = suffix_to_type($f, $e, 1); + if (length $suffix1 > 0 && !$is_null) { push @feats, $suffix1."=1";} + my $suffix2 = suffix_to_type($f, $e, 2); + if (length $suffix2 > 0 && !$is_null) { push @feats, $suffix2."=1";} + my $suffix3 = suffix_to_type($f, $e, 3); + if (length $suffix3 > 0 && !$is_null) { push @feats, $suffix3."=1";} + my $suffix1_reverse = suffix_to_type($e, $f, 1); + if (length $suffix1_reverse > 0 && !$is_null) { push @feats, $suffix1_reverse."=1";} + my $suffix2_reverse = suffix_to_type($e, $f, 2); + if (length $suffix2_reverse > 0 && !$is_null) { push @feats, $suffix2_reverse."=1";} + my $suffix3_reverse = suffix_to_type($e, $f, 3); + if (length $suffix3_reverse > 0 && !$is_null) { push @feats, $suffix3_reverse."=1";} + } print "$f ||| $e ||| @feats\n"; } } +# returns a feature string instantiating the pattern "(source_prefix,target)" +sub prefix_to_type +{ + # $f => src token + # $e => tgt token + my ($f, $e, $len_prefix) = @_; + + if (length $f > $len_prefix && index($e.$f, '=') < 0) + { + return substr($f, 0, $len_prefix)."-".$e; + } + else + { + return ""; + } +} + +# returns a feature string instantiating the pattern "(source_prefix,target)" +sub suffix_to_type +{ + # $f => src token + # $e => tgt token + my ($f, $e, $len_prefix) = @_; + + if ( (length $f) > $len_prefix && index($e.$f, '=') < 0) + { + return substr($f, (length $f)-$len_prefix, $len_prefix)."_".$e; + } + else + { + return ""; + } +} sub levenshtein { -- cgit v1.2.3