From 17d2e225a390c08d244640d77c90c0ce82cfae6c Mon Sep 17 00:00:00 2001
From: Pascal Denis <pascal.denis@alpage>
Date: Tue, 6 Oct 2009 08:00:47 +0000
Subject: [PATCH] clean up; addition of shell script pos_tag.sh
git-svn-id: https://scm.gforge.inria.fr/authscm/cfourrie/svn/lingwb/metagger/trunk@2793 dc05b511-7f1d-0410-9f1c-d6f32a2df9e4
---
bin/pos_tag.sh | 8 ++++++++
src/metagger/instance.py.in | 14 +++++++-------
src/metagger/megam_classifier.py.in | 15 +++++++--------
{bin => src/metagger}/pos_tag.py.in | 0
src/metagger/pos_tagger.py.in | 10 ----------
5 files changed, 22 insertions(+), 25 deletions(-)
create mode 100644 bin/pos_tag.sh
rename {bin => src/metagger}/pos_tag.py.in (100%)
diff --git a/bin/pos_tag.sh b/bin/pos_tag.sh
new file mode 100644
index 0000000..c82bb4e
--- /dev/null
+++ b/bin/pos_tag.sh
@@ -0,0 +1,8 @@
+#!/usr/bin/sh
+
+PYTHONPATH=${MELT_DIR}/src/melt
+MODEL=${MELT_DIR}/data/ftb1_model.megam
+TAGDICO=${MELT_DIR}/data/ftb1_tag_dict
+LEFFF=${MELT_DIR}/data/lefff.ftb4tags
+python ${MELT_DIR}/src/pos_tag.py -m ${MODEL} -d ${TAGDICO} -l ${LEFFF} $@
+
diff --git a/src/metagger/instance.py.in b/src/metagger/instance.py.in
index 8e61202..7e8c4c5 100644
--- a/src/metagger/instance.py.in
+++ b/src/metagger/instance.py.in
@@ -33,8 +33,8 @@ class Instance:
return u'%s\t%s' %(self.label," ".join(self.fv))
- def get_features(self,index,tokens,known_words={},lefff={},cache={}):
- self.get_static_features(index,tokens,known_words=known_words,lefff=lefff,cache=cache)
+ def get_features(self,index,tokens,lefff={},cache={}):
+ self.get_static_features(index,tokens,lefff=lefff,cache=cache)
self.get_sequential_features(index,tokens)
return
@@ -47,15 +47,15 @@ class Instance:
return
- def get_static_features(self,index,tokens,known_words={},lefff={},cache={}):
+ def get_static_features(self,index,tokens,lefff={},cache={}):
# current word features
- self.get_cwd_features(index, tokens, known_words, lefff, cache)
+ self.get_cwd_features(index, tokens, lefff, cache)
# contextual features
- self.get_conx_features(index,tokens,known_words, lefff)
+ self.get_conx_features(index,tokens,lefff)
return
- def get_cwd_features(self,index,tokens,known_words,lefff,cache):
+ def get_cwd_features(self,index,tokens,lefff,cache):
word = tokens[index].string
#### lexical features
self.add('wd',word)
@@ -75,7 +75,7 @@ class Instance:
return
- def get_conx_features(self,index,tokens,known_words,lefff,w=2):
+ def get_conx_features(self,index,tokens,lefff,w=2):
for p in range(-w,w+1):
if p == 0: continue # skip current wd
absp = index+p
diff --git a/src/metagger/megam_classifier.py.in b/src/metagger/megam_classifier.py.in
index 559cca4..fe05dfc 100755
--- a/src/metagger/megam_classifier.py.in
+++ b/src/metagger/megam_classifier.py.in
@@ -28,8 +28,7 @@ class MegamClassifier:
""" the paramfile is a sequence of whitespace-separated lines
the column column is a string feature label, while subsequent
columns are the weight for that feature for class. The first
- line is a map of class *names* to *column positions* for
- example: ***NAMEDLABELSIDS*** O B I
+ line is a map of class *names* to *column positions*
"""
print >> sys.stderr, "Reading parameters file: %s" %self.paramfile
@@ -62,11 +61,13 @@ class MegamClassifier:
"""
print >> sys.stderr, ">>> Training Megam classifier..."
- megam_exec_path = os.environ.get("MEGAM_DIR",None)+"/megam.opt"
+ try:
+ megam_exec_path = os.environ.get("MEGAM_DIR",None)+"/megam.opt"
+ except TypeError:
+ sys.exit("Missing env variable for MEGAM_DIR. You need Megam to train models.")
self.paramfile = paramfile
# build process command
- proc = ["megam.opt", "-nc", "-repeat", repeat, "-lambda", prior_prec,\
- "-maxi", maxit]
+ proc = ["megam.opt", "-nc", "-repeat", repeat, "-lambda", prior_prec,"-maxi", maxit]
if not bias:
proc.append("-nobias")
proc.append("multiclass") # optimization type
@@ -85,7 +86,6 @@ class MegamClassifier:
print >> sys.stderr, "Megam parameters dumped into file %s" %self.paramfile
# load model from output param file
self.load_model()
- # self.flush_model_file()
print >> sys.stderr, "Model classes (%s): %s" %(len(self.classes),self.classes)
print >> sys.stderr, "# of features: %s" %(len(self.weights))
return
@@ -137,8 +137,7 @@ class MegamClassifier:
return zip( self.classes, probs )
- def get_uniform_distribution( self, features ):
- return zip( self.classes, [1.0/len(self.classes) for c in self.classes] )
+
diff --git a/bin/pos_tag.py.in b/src/metagger/pos_tag.py.in
similarity index 100%
rename from bin/pos_tag.py.in
rename to src/metagger/pos_tag.py.in
diff --git a/src/metagger/pos_tagger.py.in b/src/metagger/pos_tagger.py.in
index 3a144eb..50436bb 100755
--- a/src/metagger/pos_tagger.py.in
+++ b/src/metagger/pos_tagger.py.in
@@ -22,7 +22,6 @@ class POSTagger:
def __init__(self):
- self.known_words = {}
self.tag_dict = {}
self.lefff_dict = defaultdict(list)
self.classifier = MegamClassifier()
@@ -71,7 +70,6 @@ class POSTagger:
os.write(1, "%s" %"\b"*len(str(inst_ct))+str(inst_ct))
inst = Instance(tokens[i].label)
inst.get_features(i,tokens,
- known_words=self.known_words,
lefff=self.lefff_dict,
cache=feat_cache)
print >> data_file, inst.__str__()
@@ -91,7 +89,6 @@ class POSTagger:
# cache static features
cached_inst = Instance()
cached_inst.get_static_features(i,tokens,
- known_words=self.known_words,
lefff=self.lefff_dict)
# possible tags
legit_tags = self.tag_dict.get(token.string,[])
@@ -145,13 +142,6 @@ class POSTagger:
return
- def load_word_list(self, _file, encoding='latin-1'):
- print >> sys.stderr, "Loading know words list..."
- self.known_words = dict([l.strip().split() for l in codecs.open(_file,'r',encoding)])
- print >> sys.stderr, "Frequent word list loaded: %s words" %(len( self.known_words))
- return
-
-
def load_tag_dictionary(self, _file, encoding='latin-1'):
print >> sys.stderr, "Loading tag dictionary..."
for l in codecs.open(_file,'r',encoding):
--
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