Datasets:
Tasks:
Fill-Mask
Multilinguality:
multilingual
Size Categories:
10M<n<100M
Language Creators:
found
Annotations Creators:
other
Source Datasets:
original
Tags:
License:
| import glob | |
| import os | |
| from datasets import load_dataset | |
| _LANGUAGES = ['bg', 'cs', 'da', 'de', 'el', 'en', 'es', 'et', 'fi', 'fr', 'ga', 'hr', | |
| 'hu', 'it', 'lt', 'lv', 'mt', 'nl', 'pl', 'pt', 'ro', 'sk', 'sl', 'sv'] | |
| ERROR_LANGS = ['et', 'ga'] # 20221101: ga somehow hangs at sample 36715/57711, for et no data is downloaded | |
| ERROR_LANGS = [] # 20221120: no errors here | |
| FINAL_LANGS = [l for l in _LANGUAGES if l not in ERROR_LANGS] | |
| date = "20221120" # every 01 and 20 of the month, just edit this to generate newer data | |
| base_dir = 'data' | |
| date_dir = os.path.join(base_dir, date) | |
| os.makedirs(date_dir, exist_ok=True) | |
| max_file_size = 4 # GB | |
| def process_language(LANG): | |
| print(f'Processing language {LANG}...') | |
| # streaming does not work here! | |
| dataset = load_dataset("olm/wikipedia", language=LANG, date=date, split='train') | |
| size_in_gb = dataset.size_in_bytes / 1e9 | |
| print(f'Found {size_in_gb} GB of data ({len(dataset)} documents) for language {LANG}...') | |
| if size_in_gb > max_file_size: | |
| num_shards = int(size_in_gb / max_file_size) + 1 | |
| for shard in range(num_shards): | |
| dataset.shard(num_shards, shard).to_json(f'{date_dir}/{LANG}_{shard}.jsonl', lines=True) | |
| else: | |
| dataset.to_json(f'{date_dir}/{LANG}_0.jsonl', lines=True) | |
| if __name__ == '__main__': | |
| """ | |
| Run with | |
| export PYTHONPATH=. && python prepare_wikipedias.py | tee prepare_wikipedias.log | |
| """ | |
| # it does not work in parallel | |
| for LANG in FINAL_LANGS: | |
| process_language(LANG) | |
| # Compress datasets | |
| print(f"Compressing datasets at {date_dir}") | |
| # Do this at the end because we use multithreading | |
| for path in glob.glob(os.path.join(date_dir, '*.jsonl')): | |
| os.system(f'xz -zkf -T0 {path}') # -TO to use multithreading | |
| # os.system(f'rm {path}') # remove uncompressed file to save space | |