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"""South East Asia mC4 dataset."""
import gzip
import json
import datasets
logger = datasets.logging.get_logger(__name__)
_DESCRIPTION = """
South East Asia mC4 dataset."""
_CITATION = """EMPTY"""
_URL = "EMPTY"
_DATA_URL = "https://huggingface.co/datasets/aisingapore/sea-pile/tree/main/sea-pile-mc4/{language}/mc4-{language}-{index:05d}-of-{n_shards:05d}.json.gz"
_N_SHARDS_PER_LANGUAGES = {
"zh": 468,
"id": 21,
"ms": 4,
"tl": 6,
"my": 11,
"vi": 329,
"th": 74,
"lo": 2,
"km": 9,
"ta": 29,
}
class SEAPileConfig(datasets.BuilderConfig):
"""BuilderConfig for SEAmC4."""
def __init__(self, *args, languages, **kwargs):
"""BuilderConfig for SEAmC4.
Args:
languages (:obj:`List[str]`): list of languages to load
**kwargs: keyword arguments forwarded to super.
"""
super().__init__(
*args,
name="+".join(languages),
**kwargs,
)
self.languages = languages
class SEAPile(datasets.GeneratorBasedBuilder):
"""South East Asia mC4 dataset."""
BUILDER_CONFIGS = [
SEAPileConfig(languages=[lang]) for lang in _N_SHARDS_PER_LANGUAGES
]
BUILDER_CONFIG_CLASS = SEAPileConfig
def _info(self):
return datasets.DatasetInfo(
description=_DESCRIPTION,
features=datasets.Features(
{
"id": datasets.Value("string"),
"text": datasets.Value("string"),
}
),
supervised_keys=None,
homepage=_URL,
citation=_CITATION,
)
def _split_generators(self, dl_manager):
data_urls = {}
for split in ["train"]:
data_urls[split] = [
_DATA_URL.format(
language=lang,
index=index,
n_shards=_N_SHARDS_PER_LANGUAGES[lang],
)
for lang in self.config.languages
for index in range(0, _N_SHARDS_PER_LANGUAGES[lang])
]
train_downloaded_files = dl_manager.download(data_urls["train"])
return [
datasets.SplitGenerator(
name=datasets.Split.TRAIN,
gen_kwargs={"filepaths": train_downloaded_files},
),
]
def _generate_examples(self, filepaths):
"""This function returns the examples in the raw (text) form by iterating on all the files."""
id_ = 0
for filepath in filepaths:
logger.info("generating examples from = %s", filepath)
with gzip.open(open(filepath, "rb"), "rt", encoding="utf-8") as f:
for line in f:
if line:
example = json.loads(line)
yield id_, example
id_ += 1
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