---
language:
- en
license: cc-by-4.0
size_categories:
- 100M<n<1B
pretty_name: OBELISC
configs:
- config_name: default
  data_files:
  - split: train
    path: data/train-*
- config_name: opt_out_docs_removed
  data_files:
  - split: train
    path: opt_out_docs_removed/train-*
dataset_info:
- config_name: default
  features:
  - name: images
    sequence: string
  - name: metadata
    dtype: string
  - name: general_metadata
    dtype: string
  - name: texts
    sequence: string
  splits:
  - name: train
    num_bytes: 715724717192
    num_examples: 141047697
  download_size: 71520629655
  dataset_size: 715724717192
- config_name: opt_out_docs_removed
  features:
  - name: images
    sequence: string
  - name: metadata
    dtype: string
  - name: general_metadata
    dtype: string
  - name: texts
    sequence: string
  splits:
  - name: train
    num_bytes: 684638314215
    num_examples: 134648855
  download_size: 266501092920
  dataset_size: 684638314215
---
# Dataset Card for OBELISC

## Dataset Description

- **Repository: https://github.com/huggingface/OBELISC**
- **Paper: OBELISC: An Open Web-Scale Filtered Dataset of Interleaved Image-Text Documents**
- **Point of Contact: hugo@huggingface.co**

`OBELISC` is an open, massive and curated collection of interleaved image-text web documents, containing 141M English documents, 115B text tokens and 353M images, extracted from Common Crawl dumps between February 2020 and February 2023. The collection and filtering steps are described in our [paper](https://huggingface.co/papers/2306.16527).

Interleaved image-text web documents are a succession of text paragraphs interleaved by images, such as web pages that contain images. Models trained on these web documents outperform vision and language models trained solely on image-text pairs on various benchmarks. They can also generate long and coherent text about a set of multiple images. As an example, we trained [IDEFICS](https://huggingface.co/HuggingFaceM4/idefics-80b), a visual language model that accepts arbitrary sequences of image and text inputs and produces text outputs.

We provide an [interactive visualization](TODO once we have final link public) of OBELICS that allows exploring the content of OBELICS. The map shows a subset of 11M of the 141M documents.

[![OBELICS Nomic map](assets/nomic_map.png)](www.google.com)
TODO:change the link once we have the final public link

## Data Fields

An example of sample looks as follows:
```
# The example has been cropped

{
    'images': [
        'https://cdn.motor1.com/images/mgl/oRKO0/s1/lamborghini-urus-original-carbon-fiber-accessories.jpg',
        None
    ],
    'metadata': '[{"document_url": "https://lamborghinichat.com/forum/news/vw-group-allegedly-receives-offer-to-sell-lamborghini-for-9-2-billion.728/", "unformatted_src": "https://cdn.motor1.com/images/mgl/oRKO0/s1/lamborghini-urus-original-carbon-fiber-accessories.jpg", "src": "https://cdn.motor1.com/images/mgl/oRKO0/s1/lamborghini-urus-original-carbon-fiber-accessories.jpg", "formatted_filename": "lamborghini urus original carbon fiber accessories", "alt_text": "VW Group Allegedly Receives Offer To Sell Lamborghini For $9.2 Billion", "original_width": 1920, "original_height": 1080, "format": "jpeg"}, null]',
    'general_metadata': '{"url": "https://lamborghinichat.com/forum/news/vw-group-allegedly-receives-offer-to-sell-lamborghini-for-9-2-billion.728/", "warc_filename": "crawl-data/CC-MAIN-2021-25/segments/1623488528979.69/warc/CC-MAIN-20210623011557-20210623041557-00312.warc.gz", "warc_record_offset": 322560850, "warc_record_length": 17143}',
    'texts': [
        None,
        'The buyer would get everything, including Lambo\'s headquarters.\n\nThe investment groupQuantum Group AG has submitted a€7.5 billion ($9.2 billion at current exchange rates) offer to purchase Lamborghini from Volkswagen Group, Autocar reports. There\'s no info yet about whether VW intends to accept the offer or further negotiate the deal.\n\nQuantum ... Group Chief Executive Herbert Diess said at the time.'
    ]
}
```

Each sample is composed of the same 4 fields: `images`, `texts`, `metadata` and `general_metadata`. `images` and `texts` are two lists of the same size, where for each index, one element and only one is not `None`. For example, for the interleaved web document `<image_1>text<image_2>`, we would find `[image_1, None, image_2]` in `images` and `[None, text, None]` in `texts`.

The images are replaced by their URLs, and the users need to download the images, for instance with the library [img2dataset](https://github.com/rom1504/img2dataset).

`metadata` is the string representation of a list containing informations about each of the images. It has the same length as `texts` and `images` and logs for each the image relevant information such as original source document, unformatted source, alternative text if present, etc.

`general_metadata` is the string representation of a dictionary containing the URL of the document, and information regarding the extraction from Common Crawl snapshots.

## Size and Data Splits

There is only one split, `train`, that contains 141,047,697 documents.

`OBELISC` with images replaced by their URLs weights 666.6 GB (😈) in arrow format and 377 GB in the uploaded `parquet` format.

## Opted-out content

To respect the preferences of content creators, we removed from OBELICS all images for which creators explicitly opted out of AI model training. We used the [Spawning API](https://api.spawning.ai/spawning-api) to verify that the images in the dataset respect the original copyright owners’ choices.

However, due to an error on our side, we did not remove entire documents (i.e. URLs) which are opted out of AI model training. As of July 12, 2023, it represents 4.25% of the totality of OBELICS. The config `opt_out_docs_removed` (TODO) applies the correct filtering at the web document level as of July 2023: `ds = load_dataset("HuggingFaceM4/OBELISC", "opt_out_docs_removed")` (TODO name).

We recommend users of OBELICS to regularly check every document against the API.

## Content warnings

Despite our efforts on filtering, OBELICS contains a small proportion of documents that are not suitable for all audience. For instance, while navigating the interative map, you might find the cluster named "Sex" which predominantly contains description of pornographic movies along with pornographic images. Other clusters would contain advertising for sex workers, or report of violent shootings. In our experience, these documents represent a small proportion of all the documents.

## Terms of Use

By using the dataset, you agree to comply with the original licenses of the source content as well as the dataset license (CC-BY-4.0). Additionally, if you use this dataset to train a Machine Learning model, you agree to disclose your use of the dataset when releasing the model or an ML application using the model.

### Licensing Information

License CC-BY-4.0.

### Citation Information

If you are using this dataset, please cite
```
@misc{laurençon2023obelisc,
      title={OBELISC: An Open Web-Scale Filtered Dataset of Interleaved Image-Text Documents},
      author={Hugo Laurençon and Lucile Saulnier and Léo Tronchon and Stas Bekman and Amanpreet Singh and Anton Lozhkov and Thomas Wang and Siddharth Karamcheti and Alexander M. Rush and Douwe Kiela and Matthieu Cord and Victor Sanh},
      year={2023},
      eprint={2306.16527},
      archivePrefix={arXiv},
      primaryClass={cs.IR}
}
```