# 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 json
import io
import os
import string
import numpy as np
from paddle.dataset.common import md5file
from paddlenlp.utils.downloader import get_path_from_url
from paddlenlp.utils.env import DATA_HOME
from . import DatasetBuilder
__all__ = ['Imdb']
[docs]class Imdb(DatasetBuilder):
"""
Implementation of `IMDB <https://www.imdb.com/interfaces/>`_ dataset.
"""
URL = 'https://dataset.bj.bcebos.com/imdb%2FaclImdb_v1.tar.gz'
MD5 = '7c2ac02c03563afcf9b574c7e56c153a'
def _get_data(self, mode, **kwargs):
"""Downloads dataset."""
default_root = os.path.join(DATA_HOME, self.__class__.__name__)
data_dir = os.path.join(default_root, "aclImdb", mode)
if not os.path.exists(data_dir):
path = get_path_from_url(self.URL, default_root, self.MD5)
return data_dir
def _read(self, data_dir, *args):
translator = str.maketrans('', '', string.punctuation)
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].translate(translator)
yield {"text": data, "label": label_id}
[docs] def get_labels(self):
"""
Return labels of the Imdb object.
"""
return ["0", "1"]