Datasets:
Tasks:
Text Classification
Modalities:
Text
Formats:
parquet
Sub-tasks:
sentiment-classification
Languages:
English
Size:
100K - 1M
License:
Commit
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Parent(s):
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Delete loading script
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imdb.py
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# coding=utf-8
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# Copyright 2020 The TensorFlow Datasets Authors and the HuggingFace Datasets Authors.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# Lint as: python3
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"""IMDB movie reviews dataset."""
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import datasets
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from datasets.tasks import TextClassification
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_DESCRIPTION = """\
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Large Movie Review Dataset.
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This is a dataset for binary sentiment classification containing substantially \
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more data than previous benchmark datasets. We provide a set of 25,000 highly \
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polar movie reviews for training, and 25,000 for testing. There is additional \
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unlabeled data for use as well.\
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"""
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_CITATION = """\
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@InProceedings{maas-EtAl:2011:ACL-HLT2011,
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author = {Maas, Andrew L. and Daly, Raymond E. and Pham, Peter T. and Huang, Dan and Ng, Andrew Y. and Potts, Christopher},
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title = {Learning Word Vectors for Sentiment Analysis},
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booktitle = {Proceedings of the 49th Annual Meeting of the Association for Computational Linguistics: Human Language Technologies},
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month = {June},
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year = {2011},
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address = {Portland, Oregon, USA},
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publisher = {Association for Computational Linguistics},
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pages = {142--150},
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url = {http://www.aclweb.org/anthology/P11-1015}
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}
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"""
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_DOWNLOAD_URL = "https://ai.stanford.edu/~amaas/data/sentiment/aclImdb_v1.tar.gz"
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class IMDBReviewsConfig(datasets.BuilderConfig):
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"""BuilderConfig for IMDBReviews."""
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def __init__(self, **kwargs):
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"""BuilderConfig for IMDBReviews.
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Args:
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**kwargs: keyword arguments forwarded to super.
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"""
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super(IMDBReviewsConfig, self).__init__(version=datasets.Version("1.0.0", ""), **kwargs)
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class Imdb(datasets.GeneratorBasedBuilder):
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"""IMDB movie reviews dataset."""
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BUILDER_CONFIGS = [
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IMDBReviewsConfig(
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name="plain_text",
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description="Plain text",
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)
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]
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def _info(self):
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return datasets.DatasetInfo(
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description=_DESCRIPTION,
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features=datasets.Features(
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{"text": datasets.Value("string"), "label": datasets.features.ClassLabel(names=["neg", "pos"])}
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),
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supervised_keys=None,
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homepage="http://ai.stanford.edu/~amaas/data/sentiment/",
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citation=_CITATION,
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task_templates=[TextClassification(text_column="text", label_column="label")],
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)
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def _split_generators(self, dl_manager):
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archive = dl_manager.download(_DOWNLOAD_URL)
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return [
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datasets.SplitGenerator(
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name=datasets.Split.TRAIN, gen_kwargs={"files": dl_manager.iter_archive(archive), "split": "train"}
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),
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datasets.SplitGenerator(
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name=datasets.Split.TEST, gen_kwargs={"files": dl_manager.iter_archive(archive), "split": "test"}
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),
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datasets.SplitGenerator(
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name=datasets.Split("unsupervised"),
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gen_kwargs={"files": dl_manager.iter_archive(archive), "split": "train", "labeled": False},
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),
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]
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def _generate_examples(self, files, split, labeled=True):
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"""Generate aclImdb examples."""
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# For labeled examples, extract the label from the path.
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if labeled:
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label_mapping = {"pos": 1, "neg": 0}
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for path, f in files:
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if path.startswith(f"aclImdb/{split}"):
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label = label_mapping.get(path.split("/")[2])
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if label is not None:
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yield path, {"text": f.read().decode("utf-8"), "label": label}
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else:
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for path, f in files:
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if path.startswith(f"aclImdb/{split}"):
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if path.split("/")[2] == "unsup":
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yield path, {"text": f.read().decode("utf-8"), "label": -1}
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