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venue_parser.py
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venue_parser.py
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"""
This script contains the preprocessing of the venues, and the abbreviation extractor
"""
import re
import logging
import os
import pickle
from collections import Counter
from ast import literal_eval
from pprint import pprint
from tqdm import tqdm
class VenueParser():
def __init__(self, abbreviation_dict):
# my regexes
short_date = r"(?:\b(?<!\d\.)(?:(?:(?:[0123]?[0-9](?:[\.\-\/\~][0123]?[0-9])?(?:[\.\-\/(\s{1,2})]))(?:([0123]?[0-9])[\.\-\/][12][0-9]{3}|(\b(?:[Jj]an(?:uary)?|[Ff]eb(?:ruary)?|[Mm]ar(?:ch)?|[Aa]pr(?:il)?|May|[Jj]un(?:e)?|[Jj]ul(?:y)?|[Aa]ug(?:ust)?|[Ss]ept?(?:ember)?|[Oo]ct(?:ober)?|[Nn]ov(?:ember)?|[Dd]ec(?:ember)?)\b)([\.\-\/(\s{1,2})][12][0-9]{3})?))|(?:[0123]?[0-9][\.\-\/][0123]?[0-9][\.\-\/][12]?[0-9]{2,3}))(?!\.\d)\b)"
self.date_fallback = r"(?:(?:\b(?!\d\.)(?:(?:([0123]?[0-9])(?:(?:st|nd|rd|n?th)?\s?(\b(?:[Jj]an[.]?(?:uary)?|[Ff]eb[.]?(?:ruary)?|[Mm]ar[.]?(?:ch)?|[Aa]pr[.]?(?:il)?|May|[Jj]un[.]?(?:e)?|[Jj]ul[.]?(?:y)?|[Aa]ug[.]?(?:ust)?|[Ss]ept[.]??(?:ember)?|[Oo]ct[.]?(?:ober)?|[Nn]ov[.]?(?:ember)?|[Dd]ec[.]?(?:ember)?))?\s?[\.\-\/\~]\s?)([0123]?[0-9])(?:st|nd|rd|n?th)?(?:[\.\-\/(\s{1,2})])\s?(?:(\b(?:[Jj]an[.]?(?:uary)?|[Ff]eb[.]?(?:ruary)?|[Mm]ar[.]?(?:ch)?|[Aa]pr[.]?(?:il)?|May|[Jj]un[.]?(?:e)?|[Jj]ul[.]?(?:y)?|[Aa]ug[.]?(?:ust)?|[Ss]ept[.]??(?:ember)?|[Oo]ct[.]?(?:ober)?|[Nn]ov[.]?(?:ember)?|[Dd]ec[.]?(?:ember)?))\s?([1-3][0-9]{3})?\b)(?!\.\d)\b)))|(?:(\b(?:[Jj]an(?:uary)?|[Ff]eb(?:ruary)?|[Mm]ar(?:ch)?|[Aa]pr(?:il)?|May|[Jj]un(?:e)?|[Jj]ul(?:y)?|[Aa]ug(?:ust)?|[Ss]ept?(?:ember)?|[Oo]ct(?:ober)?|[Nn]ov(?:ember)?|[Dd]ec(?:ember)?)\b))(?:\s)([0123]?[0-9])(?:\s?[\.\-\/\~]\s?)([0123]?[0-9]))"
full_date_parts = [
# prefix
r"(?:(?<!:)\b\'?\d{1,4},? ?)",
# month names
r"\b(?:[Jj]an(?:uary)?|[Ff]eb(?:ruary)?|[Mm]ar(?:ch)?|[Aa]pr(?:il)?|May|[Jj]un(?:e)?|[Jj]ul(?:y)?|[Aa]ug(?:ust)?|[Ss]ept?(?:ember)?|[Oo]ct(?:ober)?|[Nn]ov(?:ember)?|[Dd]ec(?:ember)?)\b",
# suffix
r"(?:(?:,? ?\'?)?\d{1,4}(?:st|nd|rd|n?th)?\b(?:[,\/]? ?\'?\d{2,4}[a-zA-Z]*)?(?: ?- ?\d{2,4}[a-zA-Z]*)?(?!:\d{1,4})\b)",
]
__fd1 = "(?:{})".format("".join(
[full_date_parts[0] + "?", full_date_parts[1], full_date_parts[2]]))
__fd2 = "(?:{})".format("".join(
[full_date_parts[0], full_date_parts[1], full_date_parts[2] + "?"]))
self.date = "(?:" + "(?:" + __fd1 + "|" + __fd2 + ")" + "|" + short_date + ")"
self.months_regex = r'\b(?:[Jj]an(?:uary)?|[Ff]eb(?:ruary)?|[Mm]ar(?:ch)?|[Aa]pr(?:il)?|May|[Jj]un(?:e)?|[Jj]ul(?:y)?|[Aa]ug(?:ust)?|[Ss]ept?(?:ember)?|[Oo]ct(?:ober)?|[Nn]ov(?:ember)?|[Dd]ec(?:ember)?)\b'
self.blacklist_words = r'(?i)(day|invited talks|oral session|speech given|posters|volume|issue)'
self.word_ordinals = r'(?i)(first|second|third|fourth|fifth|sixth|seventh|eighth|ninth|tenth|eleventh|twelfth|thirteenth|fourteenth|fifteenth|sixteenth|seventeenth|eighteenth|nineteenth|twentieth)'
self.space_between_chars = r'([^\w\s\\.,]|_)'
self.days_abbrev = ['mon', 'tue', 'thu', 'wed', 'fri', 'sat', 'sun']
with open(abbreviation_dict, 'rb') as fin:
self.abbreviation_dict = pickle.load(fin)
self.abbreviation_dict["meeting of the association for computational linguistics"] = "acl"
def get_abbreviations(self, string, cleaned_string):
if not '(' in string or not ')' in string:
if re.search(r'(?:[\-]\s+)([A-Z]+)\b', string) is None:
return None
# for some reason got an attribute error must investigate
# the error occurs from bad entris at elastic: e.g. jem ) chem (
try:
abbrev = re.search(r'\((.*?)\)', string).group(1) # get content of parenthesis
# remove abbrev from the cleaned_string
# -------------------------------------
abbrev_to_remove = '\\b' + re.escape(abbrev).lower() + '\\b'
cleaned_string = re.sub(abbrev_to_remove, '', cleaned_string)
cleaned_string = re.sub(' +', ' ', cleaned_string).strip()
if not cleaned_string or len(cleaned_string) < 3:
return None
# -------------------------------------
# -------------------------------------
except AttributeError:
try:
abbrev = re.search(r'(?:[\-]\s+)([A-Z]+)\b', string).group(1)
except AttributeError:
return None
if not abbrev or len(abbrev) < 3:
return None
abbrev = abbrev.lower()
abbrev = re.sub(r'[^a-z ]+', '', abbrev).strip()
abbrev = re.sub(' +', ' ', abbrev)
if not abbrev or len(abbrev) < 3:
return None
try:
firstletters = [s[0] for s in cleaned_string.split(' ')]
except:
firstletters = [cleaned_string[0]]
prev = "X"
mismatch = 0
for pos, letter in enumerate(abbrev):
try:
index = firstletters.index(letter)
del firstletters[index]
except ValueError:
if prev + letter not in cleaned_string:
if mismatch == 1:
return None
else:
mismatch += 1
else:
mismatch -= 1
finally:
prev = letter
return abbrev
def preprocess(self, string, get_abbrv=True):
cleaned_string = re.sub(r'\([^)]*\)', '', string)
cleaned_string = re.sub(self.space_between_chars, ' ', cleaned_string).lower().strip()
# remove dates
cleaned_string = re.sub(self.date, '', cleaned_string)
cleaned_string = re.sub(self.date_fallback, '', cleaned_string)
cleaned_string = re.sub(r'\b\d{1,4}(?:st|nd|rd|n?th)\b', '', cleaned_string)
cleaned_string = re.sub(r'[^a-z ]+', '', cleaned_string).strip()
# remove days, months
cleaned_string = re.sub(self.months_regex, '', cleaned_string)
# remove word ordinals and blacklist words
cleaned_string = re.sub(self.word_ordinals, '', cleaned_string)
cleaned_string = re.sub(self.blacklist_words, '', cleaned_string)
# remove extra spaces
cleaned_string = re.sub(' +', ' ', cleaned_string).strip()
if not cleaned_string or len(cleaned_string) < 3 or cleaned_string in self.days_abbrev:
return None, False
# used for when you just want to preprocess a string
if not get_abbrv:
return cleaned_string, False
# way faster than checking with if
try:
return self.abbreviation_dict[cleaned_string], True
except KeyError:
abbrev = self.get_abbreviations(string, cleaned_string)
if abbrev:
self.abbreviation_dict[cleaned_string] = abbrev
return abbrev, True
else:
return cleaned_string, False
def is_journal_or_conference(self, x):
if 'journal' in x or 'conference' in x:
return x
sus_tokens = ['workshop', 'proceedings', 'thesis', 'bachelor', 'symposium']
for sus in sus_tokens:
if sus in x:
return None
return x
def get_venue_crossref(self, citation):
try:
return self.preprocess_venue(citation['journal-title'])[0]
except KeyError:
return None
def citation_year_crossref(self, citation):
try:
return int(citation['year'])
except:
return -1
def preprocess_venue(self, venue, get_abbrv=True):
# remove latin numbers
if venue != 'IV':
try:
venue = re.sub(r'\b(XC|XL|L?X{0,3})(IX|IV|V?I{0,3})\b', '', venue)
except TypeError:
return None, False
blacklist = {'n/a', 'na', 'none', '', 'null', 'otherdata', 'nodata', 'unknown', '', None, 'author', 'crossref',
'arxiv', 'Crossref', 'Arxiv'}
if venue in blacklist:
return None, False
else:
venue = self.preprocess(venue, get_abbrv)
return venue
def preprocess_venues(self, venues):
venues = [v.lower().strip() for v in venues if v]
blacklist = {'n/a', 'na', 'none', '', 'null', 'otherdata', 'nodata', 'unknown', '', None, 'author', 'crossref',
'arxiv', 'Crossref', 'Arxiv'}
venues = [v for v in venues if v not in blacklist] # and self.is_journal_or_conference(v)]
venues = list(map(self.preprocess, venues))
return venues
def postprocess(self, D):
old = D.copy()
merged = 0
for k, v in old.items():
try:
mapped = self.abbreviation_dict[k]
merged += 1
if mapped not in D.keys():
D[mapped] = {}
except KeyError:
continue
for neighbor, weight in v.items():
try:
D[mapped][neighbor] += weight
except KeyError:
D[mapped][neighbor] = weight
del D[k]
logging.info('postprocessing merged %d keys', merged)
return D
def extract_venue(self, doi_data):
short_flag = True
if doi_data['_source']['type'] == 'journal-article' or doi_data['_source']['type'] == 'proceedings-article':
try:
exists = doi_data['_source']['short-container-title']
if not exists:
short_flag = False
except KeyError:
short_flag = False
my_venues = doi_data['_source']['container-title']
if len(my_venues) > 1 and short_flag:
ven_abbrev = self.preprocess_venue(doi_data['_source']['short-container-title'][0], get_abbrv=False)[0]
if ven_abbrev is None:
ven = self.preprocess_venue(my_venues[0])[0]
if ven is None:
return None, False
else:
return ven, False
else:
for ven in my_venues:
# preprocess venue name but do not get abbreviation
# get_abbrv = True by default
ven = self.preprocess_venue(ven, get_abbrv=False)[0]
if ven is None:
continue
else:
self.abbreviation_dict[ven] = ven_abbrev
return ven_abbrev, False
elif len(my_venues) == 1 and short_flag:
ven_abbrev = self.preprocess_venue(doi_data['_source']['short-container-title'][0], get_abbrv=False)[0]
if ven_abbrev is None:
prep_venue = self.preprocess_venue(my_venues[0])[0]
if prep_venue is None:
return None, False
return prep_venue, False
else:
prep_venue = self.preprocess_venue(my_venues[0], get_abbrv=False)[0]
if prep_venue is not None:
self.abbreviation_dict[prep_venue] = ven_abbrev
return ven_abbrev, False
else:
if not my_venues:
return None, False
venue = self.preprocess_venue(my_venues[0])[0]
if venue is None:
return None, False
else:
return venue, False
else:
return None, False
def extract_year(self, doi_data, my_range=[]):
try:
year = doi_data['_source']['published-online'].split('/')[0]
except KeyError:
try:
year = doi_data['_source']['published-print'].split('/')[0]
except KeyError:
try:
year = doi_data['_source']['issued']
if year is None:
return None
else:
year = doi_data['_source']['issued'].split('/')[0]
except KeyError:
return None
if my_range:
if int(year) in my_range:
return year
else:
return None
else:
return year