def tf_idf(file_path):
records = ETLUtils.load_json_file(file_path)
data = [record['text'] for record in records]
vectorizer = TfidfVectorizer(min_df=1, stop_words='english')
train = vectorizer.fit_transform(data)
#print "Vocabulary:", vectorizer.get_feature_names()
num_samples, num_features = train.shape
print("#samples: %d, #features: %d" % (num_samples, num_features))
business_records = ETLUtils.filter_records(records, 'business_id',
['uFJwKlHL6HyHSJmORO8-5w'])
business_data = [record['text'] for record in business_records]
freq_term_matrix = vectorizer.transform(business_data)
vocabulary = vectorizer.get_feature_names()
my_list = []
rows, cols = freq_term_matrix.nonzero()
for row, col in zip(rows, cols):
my_dict = {}
word = vocabulary[col]
my_dict['tip_id'] = row
my_dict['word'] = word
my_dict['tfidf'] = freq_term_matrix[row, col]
my_list.append(my_dict)
data_frame = DataFrame(my_list)
suma = data_frame.groupby('word').aggregate(np.sum)['tfidf']
ordenado = suma.order()
print ordenado
#for row in freq_term_matrix:
#print(row)
#Stemmer
stemmer = nltk.stem.SnowballStemmer('english')
def tf_idf(file_path):
records = ETLUtils.load_json_file(file_path)
data = [record['text'] for record in records]
vectorizer = TfidfVectorizer(min_df=1, stop_words='english')
train = vectorizer.fit_transform(data)
#print "Vocabulary:", vectorizer.get_feature_names()
num_samples, num_features = train.shape
print("#samples: %d, #features: %d" % (
num_samples, num_features))
business_records = ETLUtils.filter_records(records, 'business_id', ['uFJwKlHL6HyHSJmORO8-5w'])
business_data = [record['text'] for record in business_records]
freq_term_matrix = vectorizer.transform(business_data)
vocabulary = vectorizer.get_feature_names()
my_list = []
rows, cols = freq_term_matrix.nonzero()
for row, col in zip(rows, cols):
my_dict = {}
word = vocabulary[col]
my_dict['tip_id'] = row
my_dict['word'] = word
my_dict['tfidf'] = freq_term_matrix[row, col]
my_list.append(my_dict)
data_frame = DataFrame(my_list)
suma = data_frame.groupby('word').aggregate(np.sum)['tfidf']
ordenado = suma.order()
print ordenado
#for row in freq_term_matrix:
#print(row)
#Stemmer
stemmer = nltk.stem.SnowballStemmer('english')
def analyze(file_path):
records = ETLUtils.load_json_file(file_path)
ETLUtils.drop_fields(['text', 'type', 'date', 'user_id', 'likes'],
records)
data_frame = DataFrame(records)
counts = data_frame.groupby('business_id').size()
counts.sort(ascending=0)
top_counts = counts[:1000]
print(top_counts)
print records[0].keys()
def analyze(file_path):
records = ETLUtils.load_json_file(file_path)
ETLUtils.drop_fields(['text', 'type', 'date', 'user_id', 'likes'],
records)
data_frame = DataFrame(records)
counts = data_frame.groupby('business_id').size()
counts.sort(ascending=0)
top_counts = counts[:1000]
print(top_counts)
print records[0].keys()
def tf_idf_tips(file_path):
records = ETLUtils.load_json_file(file_path)
data = [record['text'] for record in records]
vectorizer = StemmedTfidfVectorizer(min_df=1, stop_words='english')
vectorized = vectorizer.fit_transform(data)
num_samples, num_features = vectorized.shape
print("#samples: %d, #features: %d" % (num_samples, num_features))
return vectorized
def tf_idf_tips(file_path):
records = ETLUtils.load_json_file(file_path)
data = [record['text'] for record in records]
vectorizer = StemmedTfidfVectorizer(min_df=1, stop_words='english')
vectorized = vectorizer.fit_transform(data)
num_samples, num_features = vectorized.shape
print("#samples: %d, #features: %d" % (
num_samples, num_features))
return vectorized
