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README.md

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 license: apache-2.0
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+Chinese wikipedia (sourced from [here](https://huggingface.co/datasets/m-a-p/MAP-CC)) cleaned by the following steps:
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+- All text in Traditional Chinese is converted into Simplified Chinese using zhconv.
+- Duplicates are removed.
+- Low-quality text are heuristically removed based on proportion of special characters.
+- Qwen2.5-32B-Instruct is used to generate language quality annotation (on a scale of 1-5) for 398K Chinese samples and 250K English samples. An XLM-RoBERT-large classifier is trained with regression on these annotations. Any document receiving a score of 1 or 2 from the classifier is removed.
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+### Data Statistics
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+Number of samples: 2,021,184.
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+Size of parquet files: 3G.

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