def create_distance_features(self, author_id, aggregation_function, word_embedding_vector1, dif2_word_embedding,
target1, target2):
distance_features = []
for distance_function in self._distance_functions:
feature_name = u'word_embeddings_differential_' + u"distance_function_" + distance_function + '_' + target1[
'table_name'] + "_" + target1['targeted_field_name'] + "_" + str(aggregation_function) + "_TO_" \
+ target2['table_name'] + "_" + target2['targeted_field_name'] + "_" + str(
aggregation_function)
attribute_value = Vector_Operations.oparate_on_two_vectors(commons, distance_function,
word_embedding_vector1,
dif2_word_embedding)
feature = BaseFeatureGenerator.create_author_feature(feature_name, author_id,
attribute_value,
self._window_start,
self._window_end)
distance_features.append(feature)
return distance_features
def create_authors_feature_from_two_vectors(func, first_author_vector_dict, second_author_vector_dict,
first_table_name,
first_targeted_field_name, first_word_embedding_type, second_table_name,
second_targeted_field_name, second_word_embedding_type, window_start,
window_end, prefix=u''):
authors_features = []
for author_id in first_author_vector_dict.keys():
feature_name = prefix + u'subtraction_'+first_table_name + "_" + first_targeted_field_name + "_" + first_word_embedding_type + "_TO_" \
+ second_table_name + "_" + second_targeted_field_name + "_" + second_word_embedding_type + "_DISTANCE-FUNCTION_" + func
first_vector = first_author_vector_dict[author_id]
second_vector = second_author_vector_dict[author_id]
# attribute_value = getattr(commons.commons, func)(first_vector, second_vector
attribute_value = Vector_Operations.oparate_on_two_vectors(commons.commons, func,
first_vector,
second_vector)
feature = BaseFeatureGenerator.create_author_feature(feature_name, author_id, attribute_value,
window_start,
window_end)
authors_features.append(feature)
return authors_features
def calc_avg_known_words(self, source_id, **kwargs):
destination_target_fields = kwargs['target']
features = []
logging.info("processing author " + source_id)
for word_list_name in self.word_lists_names:
self._load_known_words_to_dict(word_list_name)
try:
result = self._count_avg_known_words(destination_target_fields)
window_start = self._window_start
window_end = self._window_end
attribute_name = str(self.__class__.__name__ +
'_count_avg_known_word_from_' +
word_list_name)
author_feature = BaseFeatureGenerator.create_author_feature(
attribute_name, source_id, result, window_start,
window_end)
features.append(author_feature)
except Exception as e1:
info_msg = e1.message
logging.error(info_msg + word_list_name)
return features
def execute(self, window_start=None):
# Logger setup.
start_time = time.time()
info_msg = "execute started for Cooperation topic feature generator started at " + str(
start_time)
logging.info(info_msg)
claims = self._db.get_claims()
logging.info("Cooperation execute window_start %s" %
self._window_start)
try:
# Claims => for each claim, get Posts. => for all posts, create Id to post words dictionary
# includes stamming, stopwords. => 'calculate_topics' creates the bacg of words.
claim_features = []
posts_dict = self._db.get_claim_id_posts_dict()
for cnt, claim in enumerate(claims):
claim_id = claim.claim_id
logging.info('Started ' + str(cnt + 1) + ' claim from ' +
str(len(claims)) + ' claims')
posts_list = posts_dict[claim_id]
if len(posts_list) == 0:
logging.info('The resulted list is empty for claim: ' +
str(claim_id))
continue
post_id_to_words = self._create_post_id_to_content_words(
posts_list)
post_id_to_strings_no_urls = self._create_post_id_to_strings_no_urls(
posts_list)
authors_counter_dic1 = self.calculate_topics_similarity(
post_id_to_words)
authors_counter_dic2 = self.calculate_topics_exact_match(
post_id_to_strings_no_urls)
for ftr, feature_name in enumerate(self._features_list):
logging.info('Started ' + str(ftr + 1) + ' feature from ' +
str(len(self._features_list)) + ' features')
try:
attribute_value1 = float(
getattr(self, feature_name)(authors_counter_dic1))
attribute_value2 = float(
getattr(self, feature_name)(authors_counter_dic2))
except:
attribute_value1 = -1.0
attribute_value2 = -1.0
print('Fail in extraction: ' + feature_name)
if attribute_value1 is not None and attribute_value2 is not None:
attribute_name1 = "{0}_{1}".format(
self._prefix, feature_name)
attribute_name2 = "{0}_{1}".format(
self._prefix, "exact_match_" + feature_name)
# next line add envelope for feature
claim_feature1 = BaseFeatureGenerator.create_author_feature(
attribute_name1, claim_id, attribute_value1,
self._window_start, self._window_end)
claim_feature2 = BaseFeatureGenerator.create_author_feature(
attribute_name2, claim_id, attribute_value2,
self._window_start, self._window_end)
claim_features.append(claim_feature1)
claim_features.append(claim_feature2)
print('Appended: ' + attribute_name1)
print('Appended: ' + attribute_name2)
for ftr, feature_name in enumerate(
self._author_count_features_list):
logging.info('Started ' + str(ftr + 1) + ' feature from ' +
str(len(self._author_count_features_list)) +
' features')
attribute_name1 = "{0}_{1}".format(self._prefix,
feature_name)
attribute_name2 = "{0}_{1}".format(
self._prefix, "exact_match_" + feature_name)
for author_id in authors_counter_dic1:
attribute_value1 = authors_counter_dic1[author_id]
attribute_value2 = authors_counter_dic2[author_id]
if attribute_value1 is not None and attribute_value2 is not None:
author_feature1 = BaseFeatureGenerator.create_author_feature(
attribute_name1, author_id, attribute_value1,
self._window_start, self._window_end)
author_feature2 = BaseFeatureGenerator.create_author_feature(
attribute_name2, author_id, attribute_value2,
self._window_start, self._window_end)
claim_features.append(author_feature1)
claim_features.append(author_feature2)
except Exception as ex:
template = "An exception of type {0} occurred. Arguments:\n{1!r}"
message = template.format(type(ex).__name__, ex.args)
print(message)
logging.error('Failed in extraction process!')
stop_time = time.time()
info_msg = "execute ended at " + str(stop_time)
logging.info(info_msg)
self._db.add_author_features(claim_features)
def __init__(self, db, **kwargs):
BaseFeatureGenerator.__init__(self, db, **kwargs)
self._connection_types = self._config_parser.eval(
self.__class__.__name__, "connection_types")
self._similarity_functions = self._config_parser.eval(
self.__class__.__name__, "similarity_functions")
def __init__(self, db, **kwargs):
BaseFeatureGenerator.__init__(self, db, **kwargs)
self._post_id_text_image_dict = self._create_post_id_text_image()
def __init__(self, db, **kwargs):
BaseFeatureGenerator.__init__(self, db, **{'authors': [], 'posts': {}})
self._features = self._config_parser.eval(self.__class__.__name__,
"feature_list")
def execute(self, window_start=None):
self._claim_id_claim_type_dict = self._create_claim_id_claim_type_dictionary(
)
directory_names = os.listdir(self._input_path)
for dataset_name in directory_names:
self._dataset_name = dataset_name
#with or without retweets
aggregation_retweets_type_directories = os.listdir(
self._input_path + self._dataset_name)
for aggregation_retweets_type in aggregation_retweets_type_directories:
self._aggregation_retweets_type = aggregation_retweets_type
target_path = "{0}/{1}/{2}/".format(self._input_path,
self._dataset_name,
aggregation_retweets_type)
# read post_id_topic_id_dict_file
with open(target_path +
self._post_id_topic_id_dict_file) as file:
self._post_id_topic_id_dict = json.load(file)
self._topic_id_post_id_dict = {
value: key
for key, value in self._post_id_topic_id_dict.iteritems()
}
self._topic_statistics_df = pd.read_csv(
target_path + self._topic_statistics_file)
author_features = []
for index, row in self._topic_statistics_df.iterrows():
df_tuple = tuple(row)
for i, feature_name in enumerate(
self._features_extracted_by_tuple):
msg = "\rCalculating features: [{0}/{1}: {2} {3} {4}]]".format(
i, len(self._features_extracted_by_tuple),
feature_name, self._dataset_name,
self._aggregation_retweets_type)
print(msg, end="")
post_id, attribute_name, attribute_value = getattr(
self, feature_name)(df_tuple)
author_feature = BaseFeatureGenerator.create_author_feature(
attribute_name, post_id, attribute_value,
self._window_start, self._window_end)
author_features.append(author_feature)
for j, aggregated_feature in enumerate(
self._aggregated_features):
msg = "\rCalculating aggregated features: [{0}/{1} {2} {3} {4}]]".format(
j, len(self._aggregated_features), aggregated_feature,
self._dataset_name, self._aggregation_retweets_type)
print(msg, end="")
for topic_id, post_id in self._topic_id_post_id_dict.items(
):
attribute_value = getattr(self,
aggregated_feature)(topic_id)
attribute_name = "{0}_{1}_{2}_{3}_{4}".format(
self._prefix, aggregated_feature,
self._dataset_name,
self._aggregation_retweets_type,
self._classifier_name)
author_feature = BaseFeatureGenerator.create_author_feature(
attribute_name, post_id, attribute_value,
self._window_start, self._window_end)
author_features.append(author_feature)
self._db.add_author_features(author_features)
def execute(self, window_start=None):
function_name = 'extract_temporal_features'
start_time = time.time()
info_msg = "execute started for " + function_name + " started at " + str(
start_time)
logging.info(info_msg)
claims = self._db.get_claims()
try:
claim_features = []
today_datetime = datetime.datetime.now()
posts_dict = self._db.get_claim_id_posts_dict()
for cnt, claim in enumerate(claims):
claim_id = claim.claim_id
logging.info('Started ' + str(cnt + 1) + ' claim from ' +
str(len(claims)) + ' claims')
for source in self._source_list:
# define authors,posts per claim
if source == 'authors':
s_list = self._db.get_claim_authors(claim_id)
elif source == 'posts':
s_list = posts_dict[claim_id]
if len(s_list) == 0:
logging.info('The resulted list is empty for claim:' +
str(claim_id))
continue
ll = []
for s in s_list:
try:
if source == 'authors':
created_at = s[43]
elif source == 'posts':
created_at = s.created_at
if created_at is not None:
creation_date = parser.parse(created_at)
delta = int(
divmod((today_datetime -
creation_date).total_seconds(),
60)[0])
ll.append(delta)
else:
logging.info(
'Can not be created feature for ' +
created_at)
except:
logging.info(
'Can not be parsed created_at, probably None value'
)
pass
# normalization
m = min(ll)
lls = [i - m for i in ll]
#sorting in ascending
lls.sort()
#init start stop indexes
st_ind = 0
stop_ind = 1
for delta in self._delta_time:
for idx, val in enumerate(lls[st_ind:]):
if val <= eval(delta):
stop_ind = idx
llsn = deepcopy(lls[st_ind:stop_ind])
st_ind = stop_ind
for ftr, feature_name in enumerate(
self._features_list):
logging.info('Started ' + str(ftr + 1) +
' feature from ' +
str(len(self._features_list)) +
' features')
try:
attribute_value = getattr(self,
feature_name)(llsn)
except:
attribute_value = 0
print('Fail in extraction: ' + feature_name)
if attribute_value is not None:
attribute_name = "{0}_{1}_{2}_{3}".format(
self._prefix, source, str(eval(delta)),
feature_name)
# next line add envelope for feature
claim_feature = BaseFeatureGenerator.create_author_feature(
attribute_name, claim_id, attribute_value,
self._window_start, self._window_end)
claim_features.append(claim_feature)
print('Appended: ' + attribute_name)
except:
logging.error('Failed in extraction process!')
stop_time = time.time()
info_msg = "execute ended at " + str(stop_time)
logging.info(info_msg)
self._db.add_author_features(claim_features)
def execute(self, window_start=None):
function_name = "extract_features_from_graph"
start_time = time.time()
info_msg = "execute started for " + function_name + " started at " + str(
start_time)
logging.info(info_msg)
try:
claim_features = []
if self._csv_file != ' ':
logging.info(
'Getting existing author connections from csv file')
df = pd.read_csv(self._csv_file,
names=[
'source_author_guid',
'destination_author_guid',
'connection_type', 'weight', 'claim_id',
'insertion_date'
],
low_memory=False)
else:
logging.info(
'Getting existing author connections with claim_id...')
author_connections_with_claim_id = self._db.get_author_connections_with_claim_id(
)
logging.info('Checking author connections for claim id...')
author_connections_with_claim_id.extend(
self._db.make_connections_with_claim_id()[0])
logging.info(author_connections_with_claim_id[0])
list_of_con_dicts = []
for author_con in author_connections_with_claim_id:
connections_dict = {
'source_author_guid': author_con.source_author_guid,
'destination_author_guid':
author_con.destination_author_guid,
'connection_type': author_con.connection_type,
'weight': author_con.weight,
'claim_id': author_con.claim_id,
'insertion_date': author_con.insertion_date
}
list_of_con_dicts.append(connections_dict)
df = pd.DataFrame(list_of_con_dicts)
grps = df.groupby(self._group_by)
for cnt, grp in enumerate(grps):
logging.info('Started ' + str(cnt) + ' group from ' +
str(len(grps)) + ' groups')
if nx.__version__[0] == '1':
G = nx.from_pandas_dataframe(grp[1], self._source[0],
self._target[0])
else:
G = nx.from_pandas_edgelist(grp[1], self._source[0],
self._target[0])
claim_ext_id = grp[0]
#claim_id = self._db.claim_ext_id_to_claim_id(claim_ext_id)[0]
claim_id = claim_ext_id
if nx.__version__[
0] > 1 and 'communicability_centrality' in self._features_list:
self._features_list.remove('communicability_centrality')
for ftr, feature_name in enumerate(self._features_list):
logging.info('Started ' + str(ftr + 1) + ' feature from ' +
str(len(self._features_list)) + ' features')
attributes_dict = getattr(self,
function_name)(G=G,
ff=feature_name)
if len(attributes_dict) == 1 and attributes_dict[
feature_name] is not None:
attribute_name = "{0}_{1}".format(
self._prefix, feature_name)
# next line add envelope for feature
claim_feature = BaseFeatureGenerator.create_author_feature(
attribute_name, claim_id,
attributes_dict[feature_name], self._window_start,
self._window_end)
claim_features.append(claim_feature)
continue
for sub_feature_name in ('min_', 'max_', 'median_',
'std_'):
attribute_value = attributes_dict[sub_feature_name +
feature_name]
if attribute_value is not None:
attribute_name = "{0}_{1}".format(
self._prefix, sub_feature_name + feature_name)
# next line add envelope for feature
claim_feature = BaseFeatureGenerator.create_author_feature(
attribute_name, claim_id, attribute_value,
self._window_start, self._window_end)
claim_features.append(claim_feature)
except:
logging.info('Fail')
print(sys.exc_info())
stop_time = time.time()
info_msg = "execute ended at " + str(stop_time)
logging.info(info_msg)
# used author_feature table
self._db.add_author_features(claim_features)
def __init__(self, db, **kwargs):
BaseFeatureGenerator.__init__(self, db, **kwargs)
self._targeted_author_word_embeddings = self._config_parser.eval(
self.__class__.__name__, "targeted_author_word_embeddings")
self._max_objects_without_saving = self._config_parser.eval(
self.__class__.__name__, "max_objects_without_saving")
