Cantonese-Web-Data / README.md
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language:
  - zh
  - yue

Dataset Summary

Cantonese has been a low-resource language in NLP. This dataset is a major step towards changing that.

To our knowledge, this is the first large-scale, properly curated, and deduplicated web dataset built specifically for Cantonese. It was created by filtering years of Common Crawl data and a Cantonese language detector, followed by a deduplication process using MinHash.

The result is a high-quality collection of ~200K unique documents containing ~150 million words. (as of now with the 2020~2025 dumps) 🚀

Dataset Curation Process

  • Downloaded and processed Common Crawl using code
  • The resultant traditional Chinese dataset can be found here
  • Cantonese text filtered using CantoneseDetect and the resultant dataset can be found here
  • Using MinHash deduplication to yield the final web dataset (Wikipedia and LIHKG excluded)