wehub-resource-sync
74 lines
2.6 KiB
Python
74 lines
2.6 KiB
Python
# Copyright (c) 2021 PaddlePaddle Authors. All Rights Reserved.
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
|
|
import collections
|
|
import io
|
|
import os
|
|
|
|
from ..utils.downloader import get_path_from_url
|
|
from ..utils.env import DATA_HOME
|
|
from .dataset import DatasetBuilder
|
|
|
|
__all__ = ["Imdb"]
|
|
|
|
|
|
class Imdb(DatasetBuilder):
|
|
"""
|
|
Subsets of IMDb data are available for access to customers for personal and non-commercial use.
|
|
Each dataset is contained in a gzipped, tab-separated-values (TSV) formatted file in the UTF-8 character set.
|
|
The first line in each file contains headers that describe what is in each column.
|
|
Implementation of `IMDB <https://www.imdb.com/interfaces/>`_ dataset.
|
|
|
|
"""
|
|
|
|
URL = "https://bj.bcebos.com/dataset/imdb%2FaclImdb_v1.tar.gz"
|
|
MD5 = "7c2ac02c03563afcf9b574c7e56c153a"
|
|
META_INFO = collections.namedtuple("META_INFO", ("data_dir", "md5"))
|
|
SPLITS = {
|
|
"train": META_INFO(os.path.join("aclImdb", "train"), None),
|
|
"test": META_INFO(os.path.join("aclImdb", "test"), None),
|
|
}
|
|
|
|
def _get_data(self, mode, **kwargs):
|
|
"""Downloads dataset."""
|
|
default_root = os.path.join(DATA_HOME, self.__class__.__name__)
|
|
filename, _ = self.SPLITS[mode]
|
|
data_dir = os.path.join(default_root, filename)
|
|
if not os.path.exists(data_dir):
|
|
get_path_from_url(self.URL, default_root, self.MD5)
|
|
return data_dir
|
|
|
|
def _read(self, data_dir, *args):
|
|
for label in ["pos", "neg"]:
|
|
root = os.path.join(data_dir, label)
|
|
data_files = os.listdir(root)
|
|
data_files.sort()
|
|
|
|
if label == "pos":
|
|
label_id = "1"
|
|
elif label == "neg":
|
|
label_id = "0"
|
|
for f in data_files:
|
|
f = os.path.join(root, f)
|
|
with io.open(f, "r", encoding="utf8") as fr:
|
|
data = fr.readlines()
|
|
data = data[0]
|
|
yield {"text": data, "label": label_id}
|
|
|
|
def get_labels(self):
|
|
"""
|
|
Return labels of the Imdb object.
|
|
"""
|
|
return ["0", "1"]
|