def load_dataset(self):
print('loading ratings from path: ' + self.rates_file_dir)
train_data_frame, test_data_frame = self.__load_rate(
self.rates_file_dir, self.split_ratio)
self.user_ids = self.data['User ID'].drop_duplicates().tolist()
self.item_ids = self.data['Item ID'].drop_duplicates().tolist()
if self.type == DataType.ndarray:
self.train_dataset = RatingNDArray(
self.name + '_' + self.type.name + '_trainset',
len(self.user_ids), len(self.item_ids))
self.test_dataset = RatingNDArray(
self.name + '_' + self.type.name + '_testset',
len(self.user_ids), len(self.item_ids))
elif self.type == DataType.dataframe:
self.train_dataset = RatingDataFrame(
self.name + '_' + self.type.name + '_trainset', self.user_ids,
self.item_ids)
self.test_dataset = RatingDataFrame(
self.name + '_' + self.type.name + '_testset', self.user_ids,
self.item_ids)
elif self.type == DataType.dictionary:
self.train_dataset = RatingDictionary(
self.name + '_' + self.type.name + '_trainset', self.user_ids,
self.item_ids)
self.test_dataset = RatingDictionary(
self.name + '_' + self.type.name + '_testset', self.user_ids,
self.item_ids)
self.train_dataset.load_dataset(train_data_frame)
self.test_dataset.load_dataset(test_data_frame)
print('Done.')
def __init__(self,
name='MovieLensDataset100K',
type=DataType.ndarray,
split_ratio=0.8,
dataset_path='../data/MovieLens/ml-100k'):
self.name = name
self.type = type
self.users_info_path = os.path.join(dataset_path, 'u.user')
self.items_info_path = os.path.join(dataset_path, 'u.item')
self.rates_file_path = os.path.join(dataset_path, 'u.data')
self.split_ratio = split_ratio
self.users = self.__load_user_info(self.users_info_path)
self.items = self.__load_item_info(self.items_info_path)
occupation_group = self.users.groupby(by='Occupation')
occupation_list = list(occupation_group.groups.keys())
self.occupation2id = {}
for i, occupation in enumerate(occupation_list):
self.occupation2id[occupation] = i
self.gender2id = {'M': 0, 'F': 1}
self.user_ids = self.users['ID'].drop_duplicates().tolist()
self.item_ids = self.items['ID'].drop_duplicates().tolist()
self.user_num = len(self.user_ids)
self.item_num = len(self.item_ids)
self.user_occupation_num = len(self.occupation2id)
self.users = self.users.set_index('ID').sort_index()
self.items = self.items.set_index('ID').sort_index()
if self.type == DataType.ndarray:
self.train_dataset = RatingNDArray(
self.name + '_' + self.type.name + '_trainset',
len(self.user_ids), len(self.item_ids))
self.test_dataset = RatingNDArray(
self.name + '_' + self.type.name + '_testset',
len(self.user_ids), len(self.item_ids))
elif self.type == DataType.dataframe:
self.train_dataset = RatingDataFrame(
self.name + '_' + self.type.name + '_trainset', self.user_ids,
self.item_ids)
self.test_dataset = RatingDataFrame(
self.name + '_' + self.type.name + '_testset', self.user_ids,
self.item_ids)
elif self.type == DataType.dictionary:
self.train_dataset = RatingDictionary(
self.name + '_' + self.type.name + '_trainset', self.user_ids,
self.item_ids)
self.test_dataset = RatingDictionary(
self.name + '_' + self.type.name + '_testset', self.user_ids,
self.item_ids)
def __init__(self,
name='BookCrossingDataset',
type=DataType.dictionary,
split_ratio=0.8,
dataset_path='G:/dataset/RS/Book-crossing/BX-CSV-Dump'):
self.name = name
self.type = type
self.users_info_path = os.path.join(dataset_path, 'BX-Users.csv')
self.items_info_path = os.path.join(dataset_path, 'BX-Books.csv')
self.rates_file_path = os.path.join(dataset_path,
'BX-Book-Ratings.csv')
self.split_ratio = split_ratio
self.users = self.__load_user_info(self.users_info_path)
self.items = self.__load_item_info(self.items_info_path)
self.data = pd.read_csv(self.rates_file_path,
sep=';',
skiprows=[0],
names=['User ID', 'Item ID', 'Rating'],
dtype={
'User ID': str,
'Item ID': str,
'Rating': np.float16
},
encoding='latin1')
self.user_ids = self.data['User ID'].drop_duplicates().tolist()
self.item_ids = self.data['Item ID'].drop_duplicates().tolist()
if self.type == DataType.ndarray:
self.train_dataset = RatingNDArray(
self.name + '_' + self.type.name + '_trainset',
len(self.user_ids), len(self.item_ids))
self.test_dataset = RatingNDArray(
self.name + '_' + self.type.name + '_testset',
len(self.user_ids), len(self.item_ids))
elif self.type == DataType.dataframe:
self.train_dataset = RatingDataFrame(
self.name + '_' + self.type.name + '_trainset', self.user_ids,
self.item_ids)
self.test_dataset = RatingDataFrame(
self.name + '_' + self.type.name + '_testset', self.user_ids,
self.item_ids)
elif self.type == DataType.dictionary:
self.train_dataset = RatingDictionary(
self.name + '_' + self.type.name + '_trainset', self.user_ids,
self.item_ids)
self.test_dataset = RatingDictionary(
self.name + '_' + self.type.name + '_testset', self.user_ids,
self.item_ids)
def __init__(self,
name='MovieLensDataset100K',
type=DataType.ndarray,
split_ratio=0.8,
dataset_path='G:/dataset/RS/MovieLens/ml-100k'):
self.name = name
self.type = type
self.users_info_path = os.path.join(dataset_path, 'u.user')
self.items_info_path = os.path.join(dataset_path, 'u.item')
self.rates_file_path = os.path.join(dataset_path, 'u.data')
self.split_ratio = split_ratio
self.users = self.__load_user_info(self.users_info_path)
self.items = self.__load_item_info(self.items_info_path)
self.user_ids = self.users['ID'].drop_duplicates().tolist()
self.item_ids = self.items['ID'].drop_duplicates().tolist()
if self.type == DataType.ndarray:
self.train_dataset = RatingNDArray(
self.name + '_' + self.type.name + '_trainset',
len(self.user_ids), len(self.item_ids))
self.test_dataset = RatingNDArray(
self.name + '_' + self.type.name + '_testset',
len(self.user_ids), len(self.item_ids))
elif self.type == DataType.dataframe:
self.train_dataset = RatingDataFrame(
self.name + '_' + self.type.name + '_trainset', self.user_ids,
self.item_ids)
self.test_dataset = RatingDataFrame(
self.name + '_' + self.type.name + '_testset', self.user_ids,
self.item_ids)
elif self.type == DataType.dictionary:
self.train_dataset = RatingDictionary(
self.name + '_' + self.type.name + '_trainset', self.user_ids,
self.item_ids)
self.test_dataset = RatingDictionary(
self.name + '_' + self.type.name + '_testset', self.user_ids,
self.item_ids)
def __init__(self,
name='MovieLensDataset1M',
type=DataType.dictionary,
split_ratio=0.8,
dataset_path='G:/dataset/RS/MovieLens/ml-1m'):
self.name = name
self.type = type
self.users_info_path = os.path.join(dataset_path, 'users.dat')
self.items_info_path = os.path.join(dataset_path, 'movies.dat')
self.rates_file_path = os.path.join(dataset_path, 'ratings.dat')
self.split_ratio = split_ratio
self.users = self.__load_user_info(self.users_info_path)
self.items = self.__load_item_info(self.items_info_path)
self.user_ids = list(range(1, 6041))
self.item_ids = list(range(1, 3953))
if self.type == DataType.ndarray:
self.train_dataset = RatingNDArray(
self.name + '_' + self.type.name + '_trainset',
len(self.user_ids), len(self.item_ids))
self.test_dataset = RatingNDArray(
self.name + '_' + self.type.name + '_testset',
len(self.user_ids), len(self.item_ids))
elif self.type == DataType.dataframe:
self.train_dataset = RatingDataFrame(
self.name + '_' + self.type.name + '_trainset', self.user_ids,
self.item_ids)
self.test_dataset = RatingDataFrame(
self.name + '_' + self.type.name + '_testset', self.user_ids,
self.item_ids)
elif self.type == DataType.dictionary:
self.train_dataset = RatingDictionary(
self.name + '_' + self.type.name + '_trainset', self.user_ids,
self.item_ids)
self.test_dataset = RatingDictionary(
self.name + '_' + self.type.name + '_testset', self.user_ids,
self.item_ids)
def __init__(self,
name='MovieLensDataset25M',
type=DataType.dictionary,
split_ratio=0.8,
dataset_path='G:/dataset/RS/MovieLens/ml-25m'):
self.name = name
self.type = type
self.items_info_path = os.path.join(dataset_path, 'movies.csv')
self.rates_file_path = os.path.join(dataset_path, 'ratings.csv')
self.user_num = 162541
self.split_ratio = split_ratio
self.items = self.__load_item_info(self.items_info_path)
self.user_ids = list(range(1, self.user_num + 1))
self.item_ids = self.items['ID'].drop_duplicates().tolist()
if self.type == DataType.ndarray:
self.train_dataset = RatingNDArray(
self.name + '_' + self.type.name + '_trainset',
len(self.user_ids), len(self.item_ids))
self.test_dataset = RatingNDArray(
self.name + '_' + self.type.name + '_testset',
len(self.user_ids), len(self.item_ids))
elif self.type == DataType.dataframe:
self.train_dataset = RatingDataFrame(
self.name + '_' + self.type.name + '_trainset', self.user_ids,
self.item_ids)
self.test_dataset = RatingDataFrame(
self.name + '_' + self.type.name + '_testset', self.user_ids,
self.item_ids)
elif self.type == DataType.dictionary:
self.train_dataset = RatingDictionary(
self.name + '_' + self.type.name + '_trainset', self.user_ids,
self.item_ids)
self.test_dataset = RatingDictionary(
self.name + '_' + self.type.name + '_testset', self.user_ids,
self.item_ids)
class NetflixDataset():
def __init__(self,
name='NetflixDataset',
type=DataType.dictionary,
split_ratio=0.8,
dataset_path='G:/dataset/RS/netflix-prize-data'):
self.name = name
self.type = type
self.items_info_path = os.path.join(dataset_path, 'movie_titles.txt')
self.rates_file_dir = os.path.join(dataset_path, 'training_set')
self.split_ratio = split_ratio
self.items = self.__load_item_info(self.items_info_path)
def load_dataset(self):
print('loading ratings from path: ' + self.rates_file_dir)
train_data_frame, test_data_frame = self.__load_rate(
self.rates_file_dir, self.split_ratio)
self.user_ids = self.data['User ID'].drop_duplicates().tolist()
self.item_ids = self.data['Item ID'].drop_duplicates().tolist()
if self.type == DataType.ndarray:
self.train_dataset = RatingNDArray(
self.name + '_' + self.type.name + '_trainset',
len(self.user_ids), len(self.item_ids))
self.test_dataset = RatingNDArray(
self.name + '_' + self.type.name + '_testset',
len(self.user_ids), len(self.item_ids))
elif self.type == DataType.dataframe:
self.train_dataset = RatingDataFrame(
self.name + '_' + self.type.name + '_trainset', self.user_ids,
self.item_ids)
self.test_dataset = RatingDataFrame(
self.name + '_' + self.type.name + '_testset', self.user_ids,
self.item_ids)
elif self.type == DataType.dictionary:
self.train_dataset = RatingDictionary(
self.name + '_' + self.type.name + '_trainset', self.user_ids,
self.item_ids)
self.test_dataset = RatingDictionary(
self.name + '_' + self.type.name + '_testset', self.user_ids,
self.item_ids)
self.train_dataset.load_dataset(train_data_frame)
self.test_dataset.load_dataset(test_data_frame)
print('Done.')
def __load_item_info(self, file_path):
return pd.read_csv(file_path,
sep=',',
names=['ID', 'Year of Release', 'Title'],
dtype={'ID': np.uint32},
encoding='latin1')
def __load_rate(self, file_dir, split_ratio):
self.data = pd.DataFrame(
columns=['User ID', 'Item ID', 'Rating', 'Timestamp'])
for file in os.listdir(file_dir):
user_id = int(file.split('.')[0].split('_')[1])
if user_id % 100 == 0:
print('loading file: ' + file)
rating_data = pd.read_csv(os.path.join(file_dir, file),
sep=',',
skiprows=[0],
encoding='latin1',
names=['Item ID', 'Rating', 'Timestamp'],
dtype={
'Item ID': np.uint32,
'Rating': np.float16
})
rating_data['User ID'] = np.uint32(user_id)
self.data = self.data.append(rating_data)
train_data = self.data.sample(frac=split_ratio, random_state=0, axis=0)
test_data = self.data[~self.data.index.isin(train_data.index)]
return train_data, test_data
class PersonalityDataset():
def __init__(self,
name='PersonalityDataset',
type=DataType.dictionary,
split_ratio=0.8,
dataset_path='G:/dataset/RS/Personality-isf2018'):
self.name = name
self.type = type
self.users_info_path = os.path.join(dataset_path,
'personality-data.csv')
self.rates_file_path = os.path.join(dataset_path, 'ratings.csv')
self.split_ratio = split_ratio
self.users = self.__load_user_info(self.users_info_path)
def load_dataset(self):
print('loading rating from path: ' + self.rates_file_path)
train_data_frame, test_data_frame = self.__load_rate(
self.rates_file_path, self.split_ratio)
self.user_ids = self.data['User ID'].drop_duplicates().tolist()
self.item_ids = self.data['Item ID'].drop_duplicates().tolist()
if self.type == DataType.ndarray:
self.train_dataset = RatingNDArray(
self.name + '_' + self.type.name + '_trainset',
len(self.user_ids), len(self.item_ids))
self.test_dataset = RatingNDArray(
self.name + '_' + self.type.name + '_testset',
len(self.user_ids), len(self.item_ids))
elif self.type == DataType.dataframe:
self.train_dataset = RatingDataFrame(
self.name + '_' + self.type.name + '_trainset', self.user_ids,
self.item_ids)
self.test_dataset = RatingDataFrame(
self.name + '_' + self.type.name + '_testset', self.user_ids,
self.item_ids)
elif self.type == DataType.dictionary:
self.train_dataset = RatingDictionary(
self.name + '_' + self.type.name + '_trainset', self.user_ids,
self.item_ids)
self.test_dataset = RatingDictionary(
self.name + '_' + self.type.name + '_testset', self.user_ids,
self.item_ids)
self.train_dataset.load_dataset(train_data_frame)
self.test_dataset.load_dataset(test_data_frame)
print('Done.')
def __load_user_info(self, file_path):
return pd.read_csv(
file_path,
sep=',',
skiprows=[0],
names=[
'User ID', 'Openness', 'Agreeableness', 'Emotional Stability',
'Conscientiousness', 'Extraversion', 'Assigned Metric',
'Assigned Condition', 'Movie_1', 'Predicted_rating_1',
'Movie_2', 'Predicted_rating_2', 'Movie_3',
'Predicted_rating_3', 'Movie_4', 'Predicted_rating_4',
'Movie_5', 'Predicted_rating_5', 'Movie_6',
'Predicted_rating_6', 'Movie_7', 'Predicted_rating_7',
'Movie_8', 'Predicted_rating_8', 'Movie_9',
'Predicted_rating_9', 'Movie_10', 'Predicted_rating_10',
'Movie_11', 'Predicted_rating_11', 'Movie_12',
'Predicted_rating_12', 'Is Personalized', 'Enjoy Watching'
],
dtype={'User ID': str})
def __load_rate(self, file_path, split_ratio):
self.data = pd.read_csv(
file_path,
sep=',',
skiprows=[0],
names=['User ID', 'Item ID', 'Rating', 'Timestamp'],
dtype={
'User ID': str,
'Item ID': np.uint32,
'Rating': np.float16
},
)
train_data = self.data.sample(frac=split_ratio, random_state=0, axis=0)
test_data = self.data[~self.data.index.isin(train_data.index)]
return train_data, test_data
class MovieLensDataset1M():
def __init__(self,
name='MovieLensDataset1M',
type=DataType.dictionary,
split_ratio=0.8,
dataset_path='G:/dataset/RS/MovieLens/ml-1m'):
self.name = name
self.type = type
self.users_info_path = os.path.join(dataset_path, 'users.dat')
self.items_info_path = os.path.join(dataset_path, 'movies.dat')
self.rates_file_path = os.path.join(dataset_path, 'ratings.dat')
self.split_ratio = split_ratio
self.users = self.__load_user_info(self.users_info_path)
self.items = self.__load_item_info(self.items_info_path)
self.user_ids = list(range(1, 6041))
self.item_ids = list(range(1, 3953))
if self.type == DataType.ndarray:
self.train_dataset = RatingNDArray(
self.name + '_' + self.type.name + '_trainset',
len(self.user_ids), len(self.item_ids))
self.test_dataset = RatingNDArray(
self.name + '_' + self.type.name + '_testset',
len(self.user_ids), len(self.item_ids))
elif self.type == DataType.dataframe:
self.train_dataset = RatingDataFrame(
self.name + '_' + self.type.name + '_trainset', self.user_ids,
self.item_ids)
self.test_dataset = RatingDataFrame(
self.name + '_' + self.type.name + '_testset', self.user_ids,
self.item_ids)
elif self.type == DataType.dictionary:
self.train_dataset = RatingDictionary(
self.name + '_' + self.type.name + '_trainset', self.user_ids,
self.item_ids)
self.test_dataset = RatingDictionary(
self.name + '_' + self.type.name + '_testset', self.user_ids,
self.item_ids)
def load_dataset(self):
print('loading rating from path: ' + self.rates_file_path)
train_data_frame, test_data_frame = self.__load_rate(
self.rates_file_path, self.split_ratio)
self.train_dataset.load_dataset(train_data_frame)
self.test_dataset.load_dataset(test_data_frame)
print('Done')
def __load_user_info(self, file_path):
return pd.read_csv(file_path,
sep='::',
names=['ID', 'Gender', 'Age', 'Occupation', 'Code'],
dtype={
'ID': np.uint16,
'Age': np.uint8
},
encoding='utf-8',
engine='python')
def __load_item_info(self, file_path):
return pd.read_csv(file_path,
sep='::',
names=['ID', 'Title', 'Tag'],
dtype={'ID': np.uint16},
encoding='latin1',
engine='python')
def __load_rate(self, file_path, split_ratio):
data = pd.read_csv(file_path,
sep='::',
names=['User ID', 'Item ID', 'Rating', 'Timestamp'],
dtype={
'User ID': np.uint16,
'Item ID': np.uint16,
'Rating': np.float16,
'Timestamp': np.uint32
},
engine='python')
train_data = data.sample(frac=split_ratio, random_state=0, axis=0)
test_data = data[~data.index.isin(train_data.index)]
return train_data, test_data
class MovieLensDataset25M():
def __init__(self,
name='MovieLensDataset25M',
type=DataType.dictionary,
split_ratio=0.8,
dataset_path='G:/dataset/RS/MovieLens/ml-25m'):
self.name = name
self.type = type
self.items_info_path = os.path.join(dataset_path, 'movies.csv')
self.rates_file_path = os.path.join(dataset_path, 'ratings.csv')
self.user_num = 162541
self.split_ratio = split_ratio
self.items = self.__load_item_info(self.items_info_path)
self.user_ids = list(range(1, self.user_num + 1))
self.item_ids = self.items['ID'].drop_duplicates().tolist()
if self.type == DataType.ndarray:
self.train_dataset = RatingNDArray(
self.name + '_' + self.type.name + '_trainset',
len(self.user_ids), len(self.item_ids))
self.test_dataset = RatingNDArray(
self.name + '_' + self.type.name + '_testset',
len(self.user_ids), len(self.item_ids))
elif self.type == DataType.dataframe:
self.train_dataset = RatingDataFrame(
self.name + '_' + self.type.name + '_trainset', self.user_ids,
self.item_ids)
self.test_dataset = RatingDataFrame(
self.name + '_' + self.type.name + '_testset', self.user_ids,
self.item_ids)
elif self.type == DataType.dictionary:
self.train_dataset = RatingDictionary(
self.name + '_' + self.type.name + '_trainset', self.user_ids,
self.item_ids)
self.test_dataset = RatingDictionary(
self.name + '_' + self.type.name + '_testset', self.user_ids,
self.item_ids)
def load_dataset(self):
print('loading rating from path: ' + self.rates_file_path)
train_data_frame, test_data_frame = self.__load_rate(
self.rates_file_path, self.split_ratio)
self.train_dataset.load_dataset(train_data_frame)
self.test_dataset.load_dataset(test_data_frame)
print('Done')
def __load_item_info(self, file_path):
return pd.read_csv(file_path,
sep=',',
skiprows=[0],
names=['ID', 'Title', 'Tag'],
dtype={'ID': np.uint16},
encoding='utf-8')
def __load_rate(self, file_path, split_ratio):
data = pd.read_csv(file_path,
sep=',',
skiprows=[0],
names=['User ID', 'Item ID', 'Rating', 'Timestamp'],
dtype={
'User ID': np.uint16,
'Item ID': np.uint16,
'Rating': np.float16,
'Timestamp': np.int16
})
train_data = data.sample(frac=split_ratio, random_state=0, axis=0)
test_data = data[~data.index.isin(train_data.index)]
return train_data, test_data
class MovieLensDataset100K():
def __init__(self,
name='MovieLensDataset100K',
type=DataType.ndarray,
split_ratio=0.8,
dataset_path='G:/dataset/RS/MovieLens/ml-100k'):
self.name = name
self.type = type
self.users_info_path = os.path.join(dataset_path, 'u.user')
self.items_info_path = os.path.join(dataset_path, 'u.item')
self.rates_file_path = os.path.join(dataset_path, 'u.data')
self.split_ratio = split_ratio
self.users = self.__load_user_info(self.users_info_path)
self.items = self.__load_item_info(self.items_info_path)
self.user_ids = self.users['ID'].drop_duplicates().tolist()
self.item_ids = self.items['ID'].drop_duplicates().tolist()
if self.type == DataType.ndarray:
self.train_dataset = RatingNDArray(
self.name + '_' + self.type.name + '_trainset',
len(self.user_ids), len(self.item_ids))
self.test_dataset = RatingNDArray(
self.name + '_' + self.type.name + '_testset',
len(self.user_ids), len(self.item_ids))
elif self.type == DataType.dataframe:
self.train_dataset = RatingDataFrame(
self.name + '_' + self.type.name + '_trainset', self.user_ids,
self.item_ids)
self.test_dataset = RatingDataFrame(
self.name + '_' + self.type.name + '_testset', self.user_ids,
self.item_ids)
elif self.type == DataType.dictionary:
self.train_dataset = RatingDictionary(
self.name + '_' + self.type.name + '_trainset', self.user_ids,
self.item_ids)
self.test_dataset = RatingDictionary(
self.name + '_' + self.type.name + '_testset', self.user_ids,
self.item_ids)
def load_dataset(self):
print('loading rating from path: ' + self.rates_file_path)
train_data_frame, test_data_frame = self.__load_rate(
self.rates_file_path, self.split_ratio)
self.train_dataset.load_dataset(train_data_frame)
self.test_dataset.load_dataset(test_data_frame)
print('Done')
def __load_user_info(self, file_path):
return pd.read_csv(file_path,
sep='|',
names=['ID', 'Age', 'Gender', 'Occupation', 'Code'],
dtype={
'ID': np.uint16,
'Age': np.uint8
},
encoding='utf-8')
def __load_item_info(self, file_path):
return pd.read_csv(
file_path,
sep='|',
names=[
'ID', 'Title', 'Release date', 'Video release date', 'URL',
'Unknown', 'Action', 'Adveenture', 'Animation', "Children's",
'Comedy', 'Crime', 'Documentary', 'Drama', 'Fantasy',
'Film-Noir', 'Horror', 'Musical', 'Mystery', 'Romance',
'Sci-Fi', 'Thriller', 'War', 'Wstern'
],
dtype={
'ID': np.uint16,
'video release data': str
},
encoding='latin1')
def __load_rate(self, file_path, split_ratio):
data = pd.read_csv(file_path,
sep='\t',
names=['User ID', 'Item ID', 'Rating', 'Timestamp'])
train_data = data.sample(frac=split_ratio, random_state=0, axis=0)
test_data = data[~data.index.isin(train_data.index)]
return train_data, test_data
class BookCrossingDataset():
def __init__(self,
name='BookCrossingDataset',
type=DataType.dictionary,
split_ratio=0.8,
dataset_path='G:/dataset/RS/Book-crossing/BX-CSV-Dump'):
self.name = name
self.type = type
self.users_info_path = os.path.join(dataset_path, 'BX-Users.csv')
self.items_info_path = os.path.join(dataset_path, 'BX-Books.csv')
self.rates_file_path = os.path.join(dataset_path,
'BX-Book-Ratings.csv')
self.split_ratio = split_ratio
self.users = self.__load_user_info(self.users_info_path)
self.items = self.__load_item_info(self.items_info_path)
self.data = pd.read_csv(self.rates_file_path,
sep=';',
skiprows=[0],
names=['User ID', 'Item ID', 'Rating'],
dtype={
'User ID': str,
'Item ID': str,
'Rating': np.float16
},
encoding='latin1')
self.user_ids = self.data['User ID'].drop_duplicates().tolist()
self.item_ids = self.data['Item ID'].drop_duplicates().tolist()
if self.type == DataType.ndarray:
self.train_dataset = RatingNDArray(
self.name + '_' + self.type.name + '_trainset',
len(self.user_ids), len(self.item_ids))
self.test_dataset = RatingNDArray(
self.name + '_' + self.type.name + '_testset',
len(self.user_ids), len(self.item_ids))
elif self.type == DataType.dataframe:
self.train_dataset = RatingDataFrame(
self.name + '_' + self.type.name + '_trainset', self.user_ids,
self.item_ids)
self.test_dataset = RatingDataFrame(
self.name + '_' + self.type.name + '_testset', self.user_ids,
self.item_ids)
elif self.type == DataType.dictionary:
self.train_dataset = RatingDictionary(
self.name + '_' + self.type.name + '_trainset', self.user_ids,
self.item_ids)
self.test_dataset = RatingDictionary(
self.name + '_' + self.type.name + '_testset', self.user_ids,
self.item_ids)
def load_dataset(self):
print('loading rating from path: ' + self.rates_file_path)
train_data_frame, test_data_frame = self.__load_rate(
self.rates_file_path, self.split_ratio)
self.train_dataset.load_dataset(train_data_frame, time_stamp=False)
self.test_dataset.load_dataset(test_data_frame, time_stamp=False)
print('Done.')
def __load_user_info(self, file_path):
return pd.read_csv(file_path,
sep=';',
skiprows=[0],
names=['User ID', 'Location', 'Age'],
dtype={'User ID': np.uint32},
encoding='latin1')
def __load_item_info(self, file_path):
return pd.read_csv(file_path,
sep=';',
skiprows=[0],
names=[
'Item ID', 'Book Title', 'Book Author',
'Year of Publication', 'Publisher',
'Image URL S', 'Image URL M', 'Image URL L'
],
dtype={'Item ID': str},
encoding='latin1')
def __load_rate(self, file_path, split_ratio):
train_data = self.data.sample(frac=split_ratio, random_state=0, axis=0)
test_data = self.data[~self.data.index.isin(train_data.index)]
return train_data, test_data
class MovieLensDataset100K():
def __init__(self,
name='MovieLensDataset100K',
type=DataType.ndarray,
split_ratio=0.8,
dataset_path='../data/MovieLens/ml-100k'):
self.name = name
self.type = type
self.users_info_path = os.path.join(dataset_path, 'u.user')
self.items_info_path = os.path.join(dataset_path, 'u.item')
self.rates_file_path = os.path.join(dataset_path, 'u.data')
self.split_ratio = split_ratio
self.users = self.__load_user_info(self.users_info_path)
self.items = self.__load_item_info(self.items_info_path)
occupation_group = self.users.groupby(by='Occupation')
occupation_list = list(occupation_group.groups.keys())
self.occupation2id = {}
for i, occupation in enumerate(occupation_list):
self.occupation2id[occupation] = i
self.gender2id = {'M': 0, 'F': 1}
self.user_ids = self.users['ID'].drop_duplicates().tolist()
self.item_ids = self.items['ID'].drop_duplicates().tolist()
self.user_num = len(self.user_ids)
self.item_num = len(self.item_ids)
self.user_occupation_num = len(self.occupation2id)
self.users = self.users.set_index('ID').sort_index()
self.items = self.items.set_index('ID').sort_index()
if self.type == DataType.ndarray:
self.train_dataset = RatingNDArray(
self.name + '_' + self.type.name + '_trainset',
len(self.user_ids), len(self.item_ids))
self.test_dataset = RatingNDArray(
self.name + '_' + self.type.name + '_testset',
len(self.user_ids), len(self.item_ids))
elif self.type == DataType.dataframe:
self.train_dataset = RatingDataFrame(
self.name + '_' + self.type.name + '_trainset', self.user_ids,
self.item_ids)
self.test_dataset = RatingDataFrame(
self.name + '_' + self.type.name + '_testset', self.user_ids,
self.item_ids)
elif self.type == DataType.dictionary:
self.train_dataset = RatingDictionary(
self.name + '_' + self.type.name + '_trainset', self.user_ids,
self.item_ids)
self.test_dataset = RatingDictionary(
self.name + '_' + self.type.name + '_testset', self.user_ids,
self.item_ids)
def load_dataset(self):
print('loading rating from path: ' + self.rates_file_path)
train_data_frame, test_data_frame = self.__load_rate(
self.rates_file_path, self.split_ratio)
self.train_dataset.load_dataset(train_data_frame)
self.test_dataset.load_dataset(test_data_frame)
print('Done')
def train(self):
for user_id, item_id, rating in self.train_dataset:
user_info = self.users.loc[user_id]
item_info = self.items.loc[item_id]
user_age_id = user_info['Age'] // 10
user_gender_id = self.gender2id[user_info['Gender']]
user_occupation_id = self.occupation2id[user_info['Occupation']]
item_category_one_hot = np.array(item_info[4:], dtype=np.float32)
yield user_id, user_age_id, user_gender_id, user_occupation_id, item_id, item_category_one_hot, rating
def evaluate(self):
for user_id, item_id, rating in self.test_dataset:
user_info = self.users.loc[user_id]
item_info = self.items.loc[item_id]
user_age_id = user_info['Age'] // 10
user_gender_id = self.gender2id[user_info['Gender']]
user_occupation_id = self.occupation2id[user_info['Occupation']]
item_category_one_hot = np.array(item_info[4:], dtype=np.float32)
yield user_id, user_age_id, user_gender_id, user_occupation_id, item_id, item_category_one_hot, rating
def user_info(self, user_id):
user_info = self.users.loc[user_id]
user_age_id = user_info['Age'] // 10
user_gender_id = self.gender2id[user_info['Gender']]
user_occupation_id = self.occupation2id[user_info['Occupation']]
return user_id, user_age_id, user_gender_id, user_occupation_id
def item_info(self, item_id):
item_info = self.items.loc[item_id]
item_category_one_hot = np.array(item_info[4:], dtype=np.float32)
return item_id, item_category_one_hot
def __load_user_info(self, file_path):
return pd.read_csv(file_path,
sep='|',
names=['ID', 'Age', 'Gender', 'Occupation', 'Code'],
dtype={
'ID': np.uint16,
'Age': np.uint8
},
encoding='utf-8')
def __load_item_info(self, file_path):
return pd.read_csv(
file_path,
sep='|',
names=[
'ID', 'Title', 'Release date', 'Video release date', 'URL',
'Unknown', 'Action', 'Adveenture', 'Animation', "Children's",
'Comedy', 'Crime', 'Documentary', 'Drama', 'Fantasy',
'Film-Noir', 'Horror', 'Musical', 'Mystery', 'Romance',
'Sci-Fi', 'Thriller', 'War', 'Wstern'
],
dtype={
'ID': np.uint16,
'video release data': str
},
encoding='latin1')
def __load_rate(self, file_path, split_ratio):
data = pd.read_csv(file_path,
sep='\t',
names=['User ID', 'Item ID', 'Rating', 'Timestamp'])
train_data = data.sample(frac=split_ratio, random_state=0, axis=0)
test_data = data[~data.index.isin(train_data.index)]
return train_data, test_data
def __init__(self,
name='MovieLensDataset1M',
type=DataType.dictionary,
split_ratio=0.8,
dataset_path='../data/MovieLens/ml-1m'):
self.name = name
self.type = type
self.users_info_path = os.path.join(dataset_path, 'users.dat')
self.items_info_path = os.path.join(dataset_path, 'movies.dat')
self.rates_file_path = os.path.join(dataset_path, 'ratings.dat')
self.split_ratio = split_ratio
self.users = self.__load_user_info(self.users_info_path)
self.items = self.__load_item_info(self.items_info_path)
self.gender2id = {'M': 0, 'F': 1}
self.category2id = {
'Action': 0,
'Adventure': 1,
'Animation': 2,
"Children's": 3,
'Comedy': 4,
'Crime': 5,
'Documentary': 6,
'Drama': 7,
'Fantasy': 8,
'Film-Noir': 9,
'Horror': 10,
'Musical': 11,
'Mystery': 12,
'Romance': 13,
'Sci-Fi': 14,
'Thriller': 15,
'War': 16,
'Western': 17
}
self.user_ids = self.users['ID'].drop_duplicates().tolist()
self.item_ids = self.items['ID'].drop_duplicates().tolist()
self.user_occupation_num = 21
self.users = self.users.set_index('ID').sort_index()
self.items = self.items.set_index('ID').sort_index()
self.user_ids = list(range(1, 6041))
self.item_ids = list(range(1, 3953))
self.user_num = len(self.user_ids)
self.item_num = len(self.item_ids)
if self.type == DataType.ndarray:
self.train_dataset = RatingNDArray(
self.name + '_' + self.type.name + '_trainset',
len(self.user_ids), len(self.item_ids))
self.test_dataset = RatingNDArray(
self.name + '_' + self.type.name + '_testset',
len(self.user_ids), len(self.item_ids))
elif self.type == DataType.dataframe:
self.train_dataset = RatingDataFrame(
self.name + '_' + self.type.name + '_trainset', self.user_ids,
self.item_ids)
self.test_dataset = RatingDataFrame(
self.name + '_' + self.type.name + '_testset', self.user_ids,
self.item_ids)
elif self.type == DataType.dictionary:
self.train_dataset = RatingDictionary(
self.name + '_' + self.type.name + '_trainset', self.user_ids,
self.item_ids)
self.test_dataset = RatingDictionary(
self.name + '_' + self.type.name + '_testset', self.user_ids,
self.item_ids)
class MovieLensDataset1M():
def __init__(self,
name='MovieLensDataset1M',
type=DataType.dictionary,
split_ratio=0.8,
dataset_path='../data/MovieLens/ml-1m'):
self.name = name
self.type = type
self.users_info_path = os.path.join(dataset_path, 'users.dat')
self.items_info_path = os.path.join(dataset_path, 'movies.dat')
self.rates_file_path = os.path.join(dataset_path, 'ratings.dat')
self.split_ratio = split_ratio
self.users = self.__load_user_info(self.users_info_path)
self.items = self.__load_item_info(self.items_info_path)
self.gender2id = {'M': 0, 'F': 1}
self.category2id = {
'Action': 0,
'Adventure': 1,
'Animation': 2,
"Children's": 3,
'Comedy': 4,
'Crime': 5,
'Documentary': 6,
'Drama': 7,
'Fantasy': 8,
'Film-Noir': 9,
'Horror': 10,
'Musical': 11,
'Mystery': 12,
'Romance': 13,
'Sci-Fi': 14,
'Thriller': 15,
'War': 16,
'Western': 17
}
self.user_ids = self.users['ID'].drop_duplicates().tolist()
self.item_ids = self.items['ID'].drop_duplicates().tolist()
self.user_occupation_num = 21
self.users = self.users.set_index('ID').sort_index()
self.items = self.items.set_index('ID').sort_index()
self.user_ids = list(range(1, 6041))
self.item_ids = list(range(1, 3953))
self.user_num = len(self.user_ids)
self.item_num = len(self.item_ids)
if self.type == DataType.ndarray:
self.train_dataset = RatingNDArray(
self.name + '_' + self.type.name + '_trainset',
len(self.user_ids), len(self.item_ids))
self.test_dataset = RatingNDArray(
self.name + '_' + self.type.name + '_testset',
len(self.user_ids), len(self.item_ids))
elif self.type == DataType.dataframe:
self.train_dataset = RatingDataFrame(
self.name + '_' + self.type.name + '_trainset', self.user_ids,
self.item_ids)
self.test_dataset = RatingDataFrame(
self.name + '_' + self.type.name + '_testset', self.user_ids,
self.item_ids)
elif self.type == DataType.dictionary:
self.train_dataset = RatingDictionary(
self.name + '_' + self.type.name + '_trainset', self.user_ids,
self.item_ids)
self.test_dataset = RatingDictionary(
self.name + '_' + self.type.name + '_testset', self.user_ids,
self.item_ids)
def load_dataset(self):
print('loading rating from path: ' + self.rates_file_path)
train_data_frame, test_data_frame = self.__load_rate(
self.rates_file_path, self.split_ratio)
self.train_dataset.load_dataset(train_data_frame)
self.test_dataset.load_dataset(test_data_frame)
print('Done')
def train(self):
for user_id, item_id, rating in self.train_dataset:
user_info = self.users.loc[user_id]
item_info = self.items.loc[item_id]
user_age_id = user_info['Age'] // 10
user_gender_id = self.gender2id[user_info['Gender']]
user_occupation_id = user_info['Occupation']
item_category_one_hot = self.category2onehot(item_info['Tag'])
yield user_id, user_age_id, user_gender_id, user_occupation_id, item_id, item_category_one_hot, rating
def evaluate(self):
for user_id, item_id, rating in self.test_dataset:
user_info = self.users.loc[user_id]
item_info = self.items.loc[item_id]
user_age_id = user_info['Age'] // 10
user_gender_id = self.gender2id[user_info['Gender']]
user_occupation_id = user_info['Occupation']
item_category_one_hot = self.category2onehot(item_info['Tag'])
yield user_id, user_age_id, user_gender_id, user_occupation_id, item_id, item_category_one_hot, rating
def user_info(self, user_id):
user_info = self.users.loc[user_id]
user_age_id = user_info['Age'] // 10
user_gender_id = self.gender2id[user_info['Gender']]
user_occupation_id = user_info['Occupation']
return user_id, user_age_id, user_gender_id, user_occupation_id
def item_info(self, item_id):
item_info = self.items.loc[item_id]
item_category_one_hot = self.category2onehot(item_info['Tag'])
return item_id, item_category_one_hot
def category2onehot(self, category):
category_list = category.split('|')
onehot = np.zeros(len(self.category2id) + 1, dtype=np.float32)
for c in category_list:
onehot[self.category2id[c]] = 1
return onehot
def __load_user_info(self, file_path):
return pd.read_csv(file_path,
sep='::',
names=['ID', 'Gender', 'Age', 'Occupation', 'Code'],
dtype={
'ID': np.uint32,
'Age': np.int64,
'Occupation': np.int64
},
encoding='utf-8',
engine='python')
def __load_item_info(self, file_path):
return pd.read_csv(file_path,
sep='::',
names=['ID', 'Title', 'Tag'],
dtype={'ID': np.uint32},
encoding='latin1',
engine='python')
def __load_rate(self, file_path, split_ratio):
data = pd.read_csv(file_path,
sep='::',
names=['User ID', 'Item ID', 'Rating', 'Timestamp'],
dtype={
'User ID': np.uint16,
'Item ID': np.uint16,
'Rating': np.float16,
'Timestamp': np.uint32
},
engine='python')
train_data = data.sample(frac=split_ratio, random_state=0, axis=0)
test_data = data[~data.index.isin(train_data.index)]
return train_data, test_data
