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RedPajama-Data-V2

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RedPajama-Data-V2 / README.md
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task_categories:
  - text-generation
language:
  - en
  - de
  - fr
  - es
  - it
pretty_name: Red Pajama V2 Dataset

Getting Started

RedPajama-V2 is an open dataset for training large language models. The dataset includes over 100B text documents coming from 84 CommonCrawl snapshots and processed using the CCNet pipeline. Out of these, there are 30B documents in the corpus that additionally come with quality signals, and 20B documents that are deduplicated.

Check out our blog post for more details on the build process, dataset structure and schema.

To familiarize yourself with the dataset, you can load the sample dataset using:

from datasets import load_dataset

ds = load_dataset("togethercomputer/RedPajama-Data-V2", name="sample")

To download a the dataset for a specific combination of {partition} x {snapshot_id} x {language}, you can run

from datasets import load_dataset

ds = load_dataset("togethercomputer/RedPajama-Data-V2",
                  name="sample",
                  partition="head_middle",
                  snapshots=["2023-06", "2022-49"],
                  languages=["en", "de"])

Alternatively, you can also directly download the files using the following instructions, using English data from the 2023-06 snapshot and the head_middle partition as an example. The full set of CC snapshots included in the dataset is given in _CC_SNAPSHOT_IDS, and the available partitions are tail and head_middle. The available language tags are en, de, fr, es, it.

CC_SNAPSHOT="2023-06"
LANG="en"
PARTITION="head_middle"
BASE_URL="https://data.together.xyz/redpajama-data-v2/v1.0.0"

listings_file="${LANG}-${CC_SNAPSHOT}-${PARTITION}.txt"
wget "${BASE_URL}/listings/${listings_file}"

# download documents
while read line; do
  url="${BASE_URL}/documents/${line}.json.gz"
  dest="documents/${line}.json.gz"
  mkdir -p $(dirname $dest)
  wget "$url" -O "$dest"
done <"$listings_file"

# download other components
COMPS=("quality_signals" "minhash" "duplicates")
for comp in "${COMPS[@]}"; do
  while read line; do
    url="${BASE_URL}/${comp}/${line}.${comp}.json.gz"
    dest="${comp}/${line}.${comp}.json.gz"
    mkdir -p $(dirname $dest)
    wget "$url" -O "$dest"
  done <"$listings_file"
done

A full set of scripts to recreate the dataset, including the quality signals, can be found here.

Applying Filtering Rules

You can use the quality signals to filter the raw RedPajama-V2 dataset for a given set of rules. For example, consider the following set of rules used in Gopher:

def gopher_rules_pass(sample) -> bool:
    """ function returns True if the sample complies with Gopher rules """
    signals = json.loads(sample["quality_signals"])

    # rule 1: number of words between 50 and 10'000
    word_count = signals["rps_doc_word_count"][0][2]
    if word_count < 50 or word_count > 10_000:
        return False

    # rule 2: mean word length between 3 and 10
    mean_word_length = signals["rps_doc_mean_word_length"][0][2]
    if mean_word_length < 3 or mean_word_length > 10:
        return False

    # rule 2: symbol to word ratio below 0.1
    symbol_word_ratio = signals["rps_doc_symbol_to_word_ratio"][0][2]
    if  symbol_word_ratio > 0.1:
        return False

    # rule 3: 90% of lines need to start without a bullet point
    n_lines = signals["ccnet_nlines"][0][2]
    n_lines_bulletpoint_start = sum(map(lambda ln: ln[2], signals["rps_lines_start_with_bulletpoint"]))
    if n_lines_bulletpoint_start / n_lines > 0.9:
        return False

    # rule 4: the ratio between characters in the most frequent 2-gram and the total number 
    # of characters must be below 0.2
    top_2_gram_frac = signals["rps_doc_frac_chars_top_2gram"][0][2]
    if top_2_gram_frac > 0.2:
        return False

    # rule 5: ...
    
        
    return True

Filtering the RedPajama-V2 dataset with this set of rules is then as easy as:

ds_iterator = load_dataset(
    "togethercomputer/RedPajama-Data-V2", 
    snapshots=["2023-14"], 
    languages=["en"], 
    name="default", 
    streaming=True
)

filtered_dataset = []

for sample in ds_iterator["train"]:
  
  if not gopher_rules_pass(sample):
    continue
  
  filtered_dataset.append(sample)

Dataset Summary

RedPajama-V2 is an open dataset for training large laguage models and includes over 100B text documents. Out of these, 30B documents come with quality annotations. Out of the 30B quality annotated documents, 20B are deduplicated.

Quality Annotations

Annotation Tag Description Category Reference
ccnet_bucket head, middle or tail bucket of the perplexity score CCNet CCNet
ccnet_language_score score of the language identification model CCNet CCNet
ccnet_length number of characters CCNet CCNet
ccnet_nlines number of lines CCNet CCNet
ccnet_original_length number of characters before in-document line deduplication CCNet CCNet
ccnet_original_nlines number of lines before in-document line deduplication CCNet CCNet
ccnet_perplexity perplexity of an LM trained on Wikipedia CCNet CCNet
rps_doc_books_importance Given a bag of {1,2}-wordgram model trained on Books p, and a model trained on the source domain q, This is the logarithm of the ratio p(doc)/q(doc). ML Heuristics Importance Resampling (Xie et al.)
rps_doc_openwebtext_importance Given a bag of {1,2}-wordgram model trained on OpenWebText p, and a model trained on the source domain q, this is the logarithm of the ratio p(doc)/q(doc). ML Heuristics Importance Resampling (Xie et al.)
rps_doc_wikipedia_importance Given a bag of {1,2}-wordgram model trained on Wikipedia articles p, and a model trained on the source domain q, this is the logarithm of the ratio p(doc)/q(doc). ML Heuristics Importance Resampling (Xie et al.)
rps_doc_ml_wikiref_score Fasttext classifier prediction for the document being a Wikipedia reference. This is the same fasttext model used in the RedPajama-1T dataset. Only applies to English data.. ML Heuristics LLaMA, RedPajama-1T
rps_doc_ml_palm_score Fasttext classifier prediction for the document being a Wikipedia article, OpenWebText sample or a RedPajama-V1 book. Only for English data. ML Heuristics PALM, GLaM
rps_doc_ml_wikipedia_score Fasttext classifier prediction for the document being a Wikipedia article. This is used for non-English data ML Heuristics -
rps_doc_curly_bracket The ratio between the number of occurrences of '{' or '}' and the number of characters in the raw text. Natural Language C4
rps_doc_frac_all_caps_words The fraction of words in the content that only consist of uppercase letters. This is based on the raw content. Natural Language Pretrainer’s Guide
rps_doc_frac_lines_end_with_ellipsis The fraction of lines that end with an ellipsis, where an ellipsis is defined as either "..." or "…". Natural Language RefinedWeb, Gopher
rps_doc_frac_no_alph_words The fraction of words that contain no alphabetical character. Natural Language RefinedWeb, Gopher
rps_doc_lorem_ipsum The ratio between the number of occurrences of 'lorem ipsum' and the number of characters in the content after normalisation. Natural Language C4
rps_doc_mean_word_length The mean length of words in the content after normalisation. Natural Language RefinedWeb, Gopher
rps_doc_stop_word_fraction The ratio between the number of stop words and the number of words in the document. Stop words are obtained from the stopwords-json repo. Natural Language RefinedWeb, Gopher
rps_doc_symbol_to_word_ratio The ratio of symbols to words in the content.. Symbols are defined "#", "...", and "…". Natural Language RefinedWeb, Gopher
rps_doc_frac_unique_words The fraction of unique words in the content. This is also known as the degeneracy of a text sample. Calculated based on the normalised content. Natural Language Pretrainer’s Guide
rps_doc_unigram_entropy The entropy of the unigram distribution of the content. This measures the diversity of the content and is computed using sum(-x / total * log(x / total)) where the sum is taken over counts of unique words in the normalised content. Natural Language -
rps_doc_word_count The number of words in the content after normalisation. Natural Language RefinedWeb, Gopher
rps_lines_ending_with_terminal_punctution_mark Indicates whether a line ends with a terminal punctuation mark. A terminal punctation mark is defined as one of: ".", "!", "?", "”". Natural Language C4
rps_lines_javascript_counts The number of occurrences of the word "javascript" in each line. Natural Language C4
rps_lines_num_words The number of words in each line. This is computed based on the normalised text. Natural Language C4 , RefinedWeb
rps_lines_numerical_chars_fraction The ratio between the number of numerical characters and total number of characters in each line. This is based on the normalised content. Natural Language RefinedWeb
rps_lines_start_with_bulletpoint Whether the lines that start with a bullet point symbol. The following set of unicodes are considered a bullet point: \u2022 (bullet point), \u2023 (triangular bullet point), \u25B6 (black right pointing triangle), \u25C0 (black left pointing triangle), \u25E6 (white bullet point), \u25A0 (black square), \u25A1 (white square), \u25AA (black small square), \u25AB (white small square), \u2013 (en dash). Natural Language RefinedWeb, Gopher
rps_lines_uppercase_letter_fraction The ratio between the number of uppercase letters and total number of characters in each line. This is based on the raw text. Natural Language RefinedWeb
rps_doc_num_sentences The number of sentences in the content. This is calculated using the regular expression r'\b[^.!?]+[.!?]*'. Natural Language C4
rps_doc_frac_chars_dupe_10grams The fraction of characters in duplicate word 10grams. This operates on the lower-cased, punctuation removed content. It is also ensured that characters in overlapping ngrams are only counted once. Repetitiveness RefinedWeb, Gopher
rps_doc_frac_chars_dupe_5grams The fraction of characters in duplicate word 5grams. Repetitiveness RefinedWeb, Gopher
rps_doc_frac_chars_dupe_6grams The fraction of characters in duplicate word 6grams. Repetitiveness RefinedWeb, Gopher
rps_doc_frac_chars_dupe_7grams The fraction of characters in duplicate word 7grams. Repetitiveness RefinedWeb, Gopher
rps_doc_frac_chars_dupe_8grams The fraction of characters in duplicate word 8grams. Repetitiveness RefinedWeb, Gopher
rps_doc_frac_chars_dupe_9grams The fraction of characters in duplicate word 9grams. Repetitiveness RefinedWeb, Gopher
rps_doc_frac_chars_top_2gram The fraction of characters in the top word 2gram. Repetitiveness RefinedWeb, Gopher
rps_doc_frac_chars_top_3gram The fraction of characters in the top word 3gram. Repetitiveness RefinedWeb, Gopher
rps_doc_frac_chars_top_4gram The fraction of characters in the top word 4gram. Repetitiveness RefinedWeb, Gopher
rps_doc_ldnoobw_words The number of sequences of words that are contained in the List-of-Dirty-Naughty-Obscene-and-Otherwise-Bad-Words blocklist. The blocklist is obtained from the LDNOOBW repo. toxicity C4
rps_doc_ut1_blacklist A categorical id corresponding to the list of categories of the domain of the document. Categories are obtained from the UT1 blacklist. The list is obtained from UT-Capitole. toxicictiy RefinedWeb

Document and Token Counts for the Annotated and deduplicated head_middle part of the dataset

# Documents Estimated Token count (deduped)
en 14.5B 20.5T
de 1.9B 3.0T
fr 1.6B 2.7T
es 1.8B 2.8T
it 0.9B 1.5T
Total 20.8B 30.4T

Languages

English, German, French, Italian, Spanish

Dataset Structure

The dataset is structured into four components, each following the same key structure:

├── documents
    ├── 2018-43
        ├── 0000
            ├── en_head.json.gz
            ├── ...
            ├── it_middle.json.gz
├── quality_signals
    ├── 2018-43
        ├── 0000
            ├── en_head.signals.json.gz
            ├── ...
            ├── it_middle.json.gz
├── duplicates
    ├── 2018-43
        ├── 0000
            ├── en_head.duplicates.parquet
            ├── ...
            ├── it_middle.duplicates.parquet
├── minhash
    ├── 2018-43
        ├── 0000
            ├── en_head.minhash.parquet
            ├── ...
            ├── it_middle.minhash.parquet

Documents files, which contain the text, folow the schema defined by CCNet:

{
  "url": "...",
  "date_download": "2014-08-20T06:48:26Z",
  "digest": "sha1:46OPKWZ7MAG5624VYYA3U3YH2MJ727B6",
  "length": 1095,
  "nlines": 8,
  "source_domain": "...",
  "title": "...",
  "raw_content": "Dear ...",
  "cc_segment": "crawl-data/CC-MAIN-2014-35/...",
  "original_nlines": 11,
  "original_length": 1174,
  "line_ids": [
    0,
    1,
    3,
    4,
    6,
    7,
    8,
    9
  ],
  "language": "en",
  "language_score": 0.92,
  "perplexity": 217.2,
  "bucket": "head"
}

The quality signals follow the schema

{
  "id": "2018-43/0000/en_head.json.gz/0",
  "id_int": 7972430436813205988,
  "metadata": {
    "cc_segment": "crawl-data/...",
    "cc_net_source": "2018-43/0000/en_head.json.gz",
    "url": "...",
    "source_domain": "...",
    "language": "en",
    "snapshot_id": "2018-43"
  },
  "quality_signals": {
    "ccnet_original_length": [
      [
        0,
        7033,
        8711.0
      ]
    ],
    ...,
    "rps_doc_stop_word_fraction": [
      [
        0,
        7033,
        0.45121107
      ]
    ],
    "rps_lines_num_words": [
      [
        0,
        25,
        2
      ],
      ...,
      [
        6980,
        7033,
        10
      ]
    ]
  }
}

where signal scores are encoded as a list of tuples (start, end, score), where start and end are the locations in the raw_content string where the score applies.

Dataset Creation

The dataset is based on 84 snapshots provided by Common Crawl. Each snapshot was processed using the CCNet pipeline and split into head middle tail buckets, depending on the perplexity score. In a second step, the documents in the head and middle buckets were annotated with the quality signals described above. Finally, the documents were deduplicated based on the text, using a Bloomfilter. The duplicates were kept in the dataset, but are marked in the duplicates component.

Citation

To cite RedPajama-V2, please use:

@software{together2023redpajama-v2,
  author = {Together Computer},
  title = {RedPajama: an Open Dataset for Training Large Language Models},
  month = October,
  year = 2023,
  url = {https://github.com/togethercomputer/RedPajama-Data}
}

Acknowledgements

-- TODO --

License

Please refer to the Common Crawl Foundation Terms of Use for the data. The code used to load and process the dataset is licensed under the Apache 2.0 license.