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--- |
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dataset_info: |
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features: |
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- name: text |
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dtype: string |
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splits: |
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- name: train |
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num_bytes: 26076989556 |
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num_examples: 33536113 |
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download_size: 15221565467 |
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dataset_size: 26076989556 |
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--- |
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# Dataset Card for "chunked-wikipedia20220301en-bookcorpusopen" |
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``` |
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num_examples: 33.5 million |
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download_size: 15.3 GB |
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dataset_size: 26.1 GB |
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``` |
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This dataset combines [wikipedia20220301.en](https://huggingface.co/datasets/wikipedia) and [bookcorpusopen](https://huggingface.co/datasets/bookcorpusopen), |
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and splits the data into smaller chunks, of size ~820 chars |
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(such that each item will be at least ~128 tokens for the average tokenizer). |
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The logic only splits on spaces, so the chunks are likely to be slightly larger than 820 chars. |
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The dataset has been normalized into lower case, with accents and non-english characters removed. |
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Items with less than 200 chars or more than 1000 chars have been removed. |
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The data has not been shuffled (you can either use `dataset.shuffle(...)`, |
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or download the shuffled version [here](https://huggingface.co/datasets/sradc/chunked-shuffled-wikipedia20220301en-bookcorpusopen), |
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which will be faster to iterate over). |
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This dataset is processed for convenience, at the expense of losing some percentage of the tokens due to truncation, |
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(assuming the training minibatches are truncated to 128 tokens). |
