def build_shorttexts_dataset(crosssite_usernames, site):
siteNameStr = str(site.siteName)
# Load or create/initialize the spreadsheet of users' short texts
shorttexts_csv_path = __get_shorttexts_csv_path__(site)
csv_string = "cross-site (Wikipedia and "+siteNameStr+") users' short texts"
headers = [COLUMN_SHORTTEXT_ID, COLUMN_SHORTTEXT_STRING, COLUMN_USERNAME]
shorttexts_in_csv = csv_util.load_or_initialize_csv(shorttexts_csv_path, csv_string, headers, COLUMN_SHORTTEXT_ID)
usernames_in_csv = list(set(csv_util.get_all_column_values(shorttexts_csv_path, COLUMN_USERNAME)))
# only need to fetch the short texts for usernames that we haven't already done
users_todo = [u for u in crosssite_usernames if u not in usernames_in_csv]
if len(users_todo)==0:
print "Short texts fetched and stored for all "+\
str(len(usernames_in_csv))+" confirmed cross-site editors. Exiting."
return
print str(len(crosssite_usernames))+" cross-site usernames total, and "+\
str(len(users_todo))+" users not yet in spreadsheet of short texts "
# Prompt how many users to fetch short texts for
desired_num_users = prompt_and_print.prompt_num_entries_to_build(csv_string, usernames_in_csv)
num_to_append = desired_num_users - len(usernames_in_csv)
if len(users_todo) < num_to_append:
print "Only "+str(len(users_todo))+" cross-site usernames available. If you want "+\
"want "+str(desired_num_users)+" total users' short texts in the short text csv, you'll "+\
"have to re-run script and choose to first fetch more cross-site usernames."
shorttexts_rows = []
progress_count = 1
for username in users_todo:
try:
if len(usernames_in_csv) >= desired_num_users:
# have enough so exit
break
if progress_count%10==0:
print "Querying for short texts posted on "+siteNameStr+" by cross-site usernames..."+\
" Number usernames whose short texts have been fetched so far: "+str(progress_count)
progress_count = progress_count+1
# For the usernames that have been confirmed to belong to the same
# individual person on Wikipedia and the given site, get the short
# texts those users have written on that site
shorttexts_response = site.get_user_short_texts(username) # fetch from site
user_shorttexts = shorttexts_response[site.get_shorttext_response_key()]
for shorttext_id in user_shorttexts:
try:
# create row for user's short texts
shorttext_text = user_shorttexts[shorttext_id].decode('utf-8')
shorttext_row = [shorttext_id, shorttext_text, username]
shorttexts_rows.append(shorttext_row)
except:
continue # ignore problematic short texts
# keep track that we'll be adding this username to the csv
usernames_in_csv.append(username)
# also check whether rate limit reached
rate_limited = shorttexts_response[site.get_rate_limit_key()]
if rate_limited:
break # reached rate limit, so break
except:
continue # ignore problematic users
# update the spreadsheet with any new users' short texts that have been fetched
csv_util.append_to_spreadsheet(csv_string, shorttexts_csv_path, shorttexts_in_csv, shorttexts_rows)
def build_entities_dataset(shorttext_rows, site):
siteNameStr = str(site.siteName)
# Load or create/initialize the spreadsheet of users' short texts
entity_csv_path = __get_entities_csv_path__(site)
output_str = __get_detected_entities_output_str__(site)
headers = [COLUMN_ENTITY_ID, __COLUMN_ENTITY_STRING__, COLUMN_SHORTTEXT_ID, COLUMN_SHORTTEXT_STRING, COLUMN_USERNAME]
entities_in_csv = csv_util.load_or_initialize_csv(entity_csv_path, output_str, headers, COLUMN_ENTITY_ID)
shorttexts_in_csv = csv_util.get_all_column_values(entity_csv_path, COLUMN_SHORTTEXT_ID)
print "A total of "+str(len(shorttext_rows))+" short texts available to detect and resolve entities in..."
# Load the cache of ambiguous entity objects
ne_objs = pkl_util.load_pickle(output_str, __get_ne_cache_path__(site))
if ne_objs is None:
ne_objs = []
# Load the cache of short texts that contain no entities
# and that we don't need to keep querying services with
entityless_shorttexts = get_entityless_shorttexts(site)
# Load the cache of problematic short texts that we can
# go back and look at later..
problematic_shorttexts = get_problematic_shorttexts(site)
# Prompt how many users to fetch short texts for
desired_num_entities = prompt_and_print.prompt_num_entries_to_build(output_str, shorttexts_in_csv)
entities_rows = []
progress_count = 1
all_shorttexts_done = True
for shorttext_row in shorttext_rows:
shorttext_id = shorttext_row[0]
if shorttext_id in shorttexts_in_csv or shorttext_id in entityless_shorttexts or shorttext_id in problematic_shorttexts:
# already did entities for this shorttext (and either successfully
# detected some, successfully detected none, or encountered an error)
continue
all_shorttexts_done = False
try:
if len(entities_in_csv) >= desired_num_entities:
# have enough so exit
break
if progress_count%10==0:
print "Detecting named entities in short texts posted on "+siteNameStr+\
" by cross-site usernames... Number of short texts whose entities have been fetched so far: \n"+\
str(len(entities_in_csv))
progress_count = progress_count+1
original_shorttext = shorttext_row[1]
username = shorttext_row[2]
# get the entities contained in each short text
# clean the short text before attempting to detect entities in it
clean_shorttext = text_util.format_text_for_NER(original_shorttext, site)
if clean_shorttext=='':
# whole string was invalid, perhaps a URL or
# some other content that gets totally filtered
problematic_shorttexts.append(shorttext_id)
continue
detected_entities = named_entity_finder.find_and_construct_named_entities(shorttext_id, original_shorttext, username, site)
if len(detected_entities)==0:
entityless_shorttexts.append(shorttext_id)
for ne_obj in detected_entities:
# cache this entity object
ne_objs.append(ne_obj)
# make a row in the spreadsheet for this entity
ne_id = ne_obj.get_entity_id()
entity_row = [ne_id, ne_obj.surface_form,
shorttext_id, original_shorttext,
username]
entities_rows.append(entity_row)
# keep track that we'll be adding this entity to the csv
entities_in_csv.append(ne_id)
except Exception as st_e:
print "Problematic short text "+str(shorttext_row[1]), st_e
if 'referenced before assignment' in str(st_e):
raise # it's a server error so we need to stop
problematic_shorttexts.append(shorttext_id)
continue
# update the spreadsheet with any new users' short texts that have been fetched
csv_util.append_to_spreadsheet(output_str, entity_csv_path, entities_in_csv, entities_rows, False)
# update the cache of ambiguous surface form objects
pkl_util.write_pickle(output_str, ne_objs, __get_ne_cache_path__(site))
pkl_util.write_pickle(__entityless_output_str__, entityless_shorttexts, __get_entityless_cache_path__(site))
pkl_util.write_pickle(__problematic_output_str__, problematic_shorttexts, __get_problematic_cache_path__(site))
print "Cached a total of "+str(len(ne_objs))+" ambiguous named entities"
if all_shorttexts_done:
print "Completed detecting and resolving entities in all short texts available."
else:
print "More short texts available to detect and resolve entities for."