# get tag try: t = Tag.objects.get( name=candidate, type="keyword" ) except: # todo lemma version of a word according to language t = Tag( name=candidate, type="keyword" ) try: t.save() except: # print "[warning] unable to save as tag:", candidate continue # set tag documnt relation try: td = Document_Tag( document=d, tag=t) td.save() except: #relation exist, continue analysis.completion = .5 analysis.save() # segment first = True for segment in distilled['segments']: if len(segment[0]) > 128: #print "[warning] sample 'segment' will be truncated:", segment[0] continue try: s = Segment.objects.get( content=segment[0][:128], language=d.language)
def decant( corpus, routine, settings, ref_completion=1.0 ):
from sven.anta.models import Analysis, Routine, Segment, Segment_Concept, Document, Document_Segment, Document_Tag, Tag, Concept
from sven.anta.utils import textify
# path = settings.MEDIA_ROOT + options.corpus
# print NL_STOPWORDS
# get document corpus
print "[info] starting pattern analysis on corpus:",corpus.id, corpus.name
log_routine( routine, entry="[info] starting pattern analysis on corpus: %s" % corpus.id )
# current analysis, if any
try:
analysis = Analysis.objects.get(corpus=corpus, type="PT")
except Analysis.DoesNotExist:
analysis = Analysis( corpus=corpus, type="PT", start_date=datetime.now(), status="CRE" )
analysis.save()
except:
raise
routine.analysis.add( analysis )
routine.save()
# total count
total_count = Document.objects.filter(corpus=corpus).count()
# current document
if analysis.document is None:
documents = Document.objects.filter(corpus__id=corpus.id)
analysis.document = documents[0]
else:
documents = Document.objects.filter(corpus__id=corpus.id, id__gt=analysis.document.id)
if documents.count() == 0:
documents = Document.objects.filter(corpus__id=corpus.id)
# pending status for current analysis
analysis.status = "PN"
analysis.save()
i = 0
# cycle through documents
for d in documents:
i = i + 1
# update analysis with current document
analysis.document = d
analysis.save()
log_routine( routine, completion=ref_completion * i / total_count )
# a = Analysis( document=d, )
print "[info] document mimetype:",d.mime_type
textified = textify( d, settings.MEDIA_ROOT )
if textified == False:
analysis.status="ERR"
analysis.save()
raise Exception("error in textify function")
textified = textified.replace("%20"," ")
analysis.completion = 0.0
analysis.document = d
analysis.save()
# load storpwords for document d language
if d.language == "NL":
stopwords = NL_STOPWORDS
elif d.language == "EN":
stopwords = EN_STOPWORDS
else:
stopwords = []
print "[info] document language:",d.language
print "[info] analysis started on doc ", d.id,"'", d.title,"'", d.language.lower(), "file:",textified
#start distill anaysis, exclude given stopwors
distilled = distill( filename=textified, language=d.language.lower(), stopwords=stopwords )
analysis.completion = .1
analysis.save()
# append keywords as tag for the document
for k in distilled['keywords']:
# print k
candidate = k[1]
# get tag
try:
t = Tag.objects.get( name=candidate, type="keyword" )
except:
# todo lemma version of a word according to language
t = Tag( name=candidate, type="keyword" )
try:
t.save()
except:
print "[warning] unable to save as tag:", candidate
continue
# set tag documnt relation
try:
td = Document_Tag( document=d, tag=t)
td.save()
except:
#relation exist,
continue
analysis.completion = .5
analysis.save()
# segment
first = True
for segment in distilled['segments']:
if len(segment[0]) > 128:
print "[warning] sample 'segment' will be truncated:", segment[0]
continue
try:
s = Segment.objects.get( content=segment[0][:128], language=d.language)
except:
s = Segment( content=segment[0][:128], stemmed=re.sub("\s+", ' ', " ".join(segment[1])[:128] ), language=d.language )
try:
s.save()
except:
print "[warning] unable to save segment:", segment[0][:128]
continue
try:
sd = Document_Segment.objects.get( document=d, segment=s )
except:
sd = Document_Segment( document=d, segment=s, tf=segment[2] )
sd.save()
# relationship exist
if first:
print "[info] sample 'segment' saved:", s.id, s.content, ", stem:", s.stemmed ,", tf:", sd.tf
# save concept and attach
for k in segment[1]:
# ignore numbers
k = re.sub("[\d\-\.]+","", k)
if len(k) < 2:
continue
try:
c = Concept.objects.get( content=k, language=d.language)
except:
try:
c = Concept( content=k, language=d.language )
c.save()
except Exception, e:
print "[warning] unable to save concept: %s, exception: %s" % (k, e)
continue
try:
sc = Segment_Concept.objects.get( segment=s, concept=c )
except:
sc = Segment_Concept( segment=s, concept=c )
sc.save()
if first:
print "[info] sample 'concept' saved:",c.id, c.content
first = False
print "[info] analysis ended on doc", d.id,"'", d.title,"'"