def test_move_doc(self):
obj = {"i": "tomove"}
db = Couch('test')
doc_id = db.distinct_insert(obj)
selector = {'_id': doc_id}
Couch('test').move_doc(selector, 'test2')
query_result = Couch('test2').query(obj)
self.assertTrue(len(query_result) > 0)
def test_update(self):
obj = {"abc": "1234", "def": {"abc": "4567"}}
db = Couch('test')
doc_id = db.distinct_insert(obj)
selector = {'_id': doc_id}
Couch('test').update(selector, 'def', {"abc": "5678"})
res = Couch('test').query(selector)
for item in res:
self.assertEqual(item['def'], {"abc": "5678"})
def fetch_vector(info1, info2, database):
selector = {
'platform1': info1['platform'],
'platform2': info2['platform'],
'username1': info1['profile']['username'],
'username2': info2['profile']['username']
}
database = Couch(database)
query_res = database.query_latest_change(selector)
return [_restore_float(x) for x in query_res]
def import_directory_to_db(path, db_name):
db = Couch(db_name)
files = os.listdir(path)
cnt = 0
for filename in files:
if cnt % 100 == 0:
print('Processing {} of {} records.'.format(cnt, len(files)))
cnt += 1
import_file_to_db(path + "/" + filename, db)
logger.info('{} records inserted.'.format(len(files)))
db.close()
def test_retrieve_flickr_realtime_in_db(self):
account = {'platform': 'Flickr', 'account': 'sakuranyochan'}
retrieve(account, REALTIME_MODE)
db = Couch('flickr')
query_result = db.query({'profile': {'username': '******'}})
db.close()
self.assertTrue(len(query_result) > 0)
query_result = retrieve(account, REALTIME_MODE)
for item in query_result:
self.assertTrue('profile' in item.keys()
and item['profile']['username'] == 'sakuranyochan')
def store_result(info1, info2, vector, database):
database = Couch(database)
doc = {
'platform1': info1['platform'],
'platform2': info2['platform'],
'username1': info1['profile']['username'],
'username2': info2['profile']['username'],
'vector': vector
}
logger.info('Storing result: {}'.format(doc))
doc_id = database.distinct_insert(_convert_float(doc))
database.close()
return doc_id
def query():
"""
Request format:
{'account1': {'platform':'xxx', 'account': 'aaa'}, 'account2': {'platform':'yyy', 'account': 'bbb'}}
Response format:
{'result': 0.123, 'doc_id': '5bea4d3efa3646879'}
"""
data = json.loads(request.get_data().decode('utf-8'))
account1 = data['account1']
account2 = data['account2']
score = query_existing_similarity_in_db(account1, account2)
if len(score) == 0:
try:
info1 = retrieve(account1, mode=REALTIME_MODE)
info2 = retrieve(account2, mode=REALTIME_MODE)
vector = algoModule.calc(info1, info2, enable_networking=(account1['platform'] == account2['platform']),
mode=REALTIME_MODE)
doc_id = algoModule.store_result(info1, info2, vector, DATABASE_DATA_AWAIT_FEEDBACK)
score = Couch(DATABASE_DATA_AWAIT_FEEDBACK).query({'_id': doc_id})
except Exception as e:
logger.error(e)
return make_response({'error': True, 'error_message': str(e)})
doc = score[0]
doc_id = doc['_id']
vector = doc['vector']
overall_score = OverallSimilarityCalculator().calc(doc)
return make_response({'result': vector, 'columns': column_names,
'score': str(overall_score), 'doc_id': doc_id,
'error': False})
def apply_feedback(item):
doc_id = item['doc_id']
label = item['feedback']
selector = {'_id': doc_id}
db_name = DATABASE_DATA_AWAIT_FEEDBACK
stored_records = Couch(db_name).query(selector)
if stored_records:
logger.info('Applying feedback to doc id {} in table {}.'.format(
selector['_id'], db_name))
item = stored_records[0]
item['vector']['label'] = label
Couch(db_name).update(selector, 'vector', item['vector'])
Couch(db_name).move_doc(selector, DATABASE_LABELED_DATA)
logger.info(
'Applying feedback to doc id {} in table {} completed.'.format(
selector['_id'], db_name))
def test_delete(self):
obj = {"abc": "1234", "def": "4567"}
selector = {"abc": "1234"}
db = Couch('test')
db.distinct_insert(obj)
query_result = db.query(selector)
self.assertTrue(len(query_result) > 0)
db.delete(selector)
query_result = db.query(selector)
self.assertEqual(0, len(query_result))
def test_distinct_insert2(self):
conn = Couch("test")
test_doc = {"adsf": {"bbb": "fdsa", "aand": "ssss"}}
for i in range(3):
conn.distinct_insert(test_doc)
query_result = conn.query(test_doc)
conn.close()
self.assertEqual(1, len(query_result))
def test_database_insert_and_partial_query(self):
conn = Couch("test")
test_doc = {"adsf": {"bbb": "fdsa", "aand": "ssss"}}
conn.insert(test_doc)
selector = {"asdf": {"bbb": "fdsa"}}
res = conn.query(selector)
conn.close()
for item in res:
self.assertEqual(item, test_doc)
def test_database_insert_and_query(self):
conn = Couch("test")
test_doc = {"abc": "def"}
conn.insert(test_doc)
selector = {"abc": "def"}
res = conn.query(selector)
conn.close()
for item in res:
self.assertEqual(item['abc'], 'def')
def query_existing_similarity_in_db(account1, account2):
database_order = [DATABASE_LABELED_DATA, DATABASE_DATA_AWAIT_FEEDBACK]
account1 = __format_account_query(account1)
account2 = __format_account_query(account2)
selectors = [{
'platform1': account1['platform'],
'platform2': account2['platform'],
'username1': account1['account'],
'username2': account2['account']
}, {
'platform1': account2['platform'],
'platform2': account1['platform'],
'username1': account2['account'],
'username2': account1['account']
}]
for db_name in database_order:
for selector in selectors:
database = Couch(db_name)
query_res = database.query_latest_change(selector)
if len(query_res) > 0:
return [_restore_float(x) for x in query_res]
return []
def login_account():
data = json.loads(request.get_data().decode('utf-8'))
platform = data['platform']
username = data['username']
password = decrypt(data['password'])
res = False
instance = None
if len(username) == 0 and len(password) == 0:
return make_response({'result': res})
if platform == 'Instagram':
instance = InsUtilsWithLogin(displayed=False)
elif platform == 'Twitter':
instance = TwiUtilsWithLogin(displayed=False)
if instance is None:
return make_response({'result': False})
instance.set_account((username, password))
res = instance.login()
if res:
database = Couch(DATABASE_CREDENTIAL)
database.insert(data)
database.close()
return make_response({'result': res})
def batch_feedback():
feedback_await_batch = Couch(DATABASE_FEEDBACK).query_all()
for feedback in feedback_await_batch:
apply_feedback(feedback)
doc_id = feedback['_id']
Couch(DATABASE_FEEDBACK).delete({'doc_id': doc_id})
def generate_model(mode, cross_features=False):
logger.info('Start generating model in {} mode.'.format(
'REALTIME' if mode == REALTIME_MODE else 'BATCH'))
logger.info('Production of features {}.'.format(
'enabled' if cross_features else 'disabled'))
items = Couch(DATABASE_LABELED_DATA).query_all()
items = list(filter(lambda x: 'label' in x['vector'].keys(), items))
logger.info('Retrieved {} labelled data from the database.'.format(
len(items)))
l = generate_feature_vectors(items, mode, cross_features)
dataset = generate_dataset(l, mode, cross_features)
train_dataset = dataset.sample(frac=0.8, random_state=0)
test_dataset = dataset.drop(train_dataset.index)
train_stats = train_dataset.describe()
train_stats.pop("label")
train_stats = train_stats.transpose()
export_stats(train_stats, mode, cross_features)
logger.info('Exported training stats.')
train_labels = train_dataset.pop('label')
test_labels = test_dataset.pop('label')
normed_train_data = norm(train_dataset, train_stats)
normed_test_data = norm(test_dataset, train_stats)
model = build_model(train_dataset)
early_stop = keras.callbacks.EarlyStopping(monitor='val_loss', patience=10)
logger.info('Training...')
history = model.fit(normed_train_data,
train_labels,
epochs=EPOCHS,
validation_split=0.2,
verbose=0,
callbacks=[early_stop, PrintDot()])
print('')
loss, mae, mse = model.evaluate(normed_test_data, test_labels, verbose=0)
logger.info("Evaluation of model:")
logger.info("loss: {:5.2f}, mae: {:5.2f}, mse: {:5.2f}".format(
loss, mae, mse))
test_predictions = model.predict(normed_test_data).flatten()
pred = [1.0 if x >= 0.5 else 0.0 for x in test_predictions]
res = list(zip(test_labels, pred))
tp = len(list(filter(lambda x: x[0] == 1 and x[1] == 1, res))) / len(
list(filter(lambda x: x[0] == 1, res)))
fp = len(list(filter(lambda x: x[0] == 0 and x[1] == 1, res))) / len(
list(filter(lambda x: x[0] == 0, res)))
tn = len(list(filter(lambda x: x[0] == 0 and x[1] == 0, res))) / len(
list(filter(lambda x: x[0] == 0, res)))
fn = len(list(filter(lambda x: x[0] == 1 and x[1] == 0, res))) / len(
list(filter(lambda x: x[0] == 1, res)))
precision = tp / (tp + fp)
recall = tp / (tp + fn)
f1 = 2 * precision * recall / (precision + recall)
logger.info(
"Precision: {:5.4f}, Recall: {:5.4f}, F1-score: {:5.4f}".format(
precision, recall, f1))
return model
def test_query_latest(self):
conn = Couch("test")
selector = {"abc": "def"}
res = conn.query_latest_change(selector)
conn.close()
self.assertEqual(1, len(res))
