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:sparkles: add builder
Browse files- cats_and_dogs.py +59 -0
cats_and_dogs.py
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import pickle
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from pathlib import Path
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from typing import List
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import datasets
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logger = datasets.logging.get_logger(__name__)
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_HOMEPAGE = "https://www.microsoft.com/en-us/download/details.aspx?id=54765"
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_URL = "https://huggingface.co/datasets/nateraw/cats-and-dogs/resolve/main/"
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_URLS = {
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"train": _URL + "train.pt",
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}
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_DESCRIPTION = "A large set of images of cats and dogs. There are 1738 corrupted images that are dropped."
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_CITATION = """\
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@Inproceedings (Conference){asirra-a-captcha-that-exploits-interest-aligned-manual-image-categorization,
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author = {Elson, Jeremy and Douceur, John (JD) and Howell, Jon and Saul, Jared},
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title = {Asirra: A CAPTCHA that Exploits Interest-Aligned Manual Image Categorization},
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booktitle = {Proceedings of 14th ACM Conference on Computer and Communications Security (CCS)},
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year = {2007},
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month = {October},
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publisher = {Association for Computing Machinery, Inc.},
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url = {https://www.microsoft.com/en-us/research/publication/asirra-a-captcha-that-exploits-interest-aligned-manual-image-categorization/},
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edition = {Proceedings of 14th ACM Conference on Computer and Communications Security (CCS)},
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}
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"""
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class CatsAndDogs(datasets.GeneratorBasedBuilder):
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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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{
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"img_bytes": datasets.Value("binary"),
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"labels": datasets.features.ClassLabel(names=["cat", "dog"]),
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}
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),
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supervised_keys=("img_bytes", "labels"),
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homepage=_HOMEPAGE,
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citation=_CITATION,
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)
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def _split_generators(self, dl_manager: datasets.DownloadManager) -> List[datasets.SplitGenerator]:
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downloaded_files = dl_manager.download_and_extract(_URLS)
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return [
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datasets.SplitGenerator(name=datasets.Split.TRAIN, gen_kwargs={"filepath": downloaded_files["train"]}),
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]
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def _generate_examples(self, filepath):
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"""This function returns the examples in the raw (text) form."""
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logger.info("generating examples from = %s", filepath)
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with Path(filepath).open("rb") as f:
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examples = pickle.load(f)
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for i, ex in enumerate(examples):
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yield str(i), ex
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