# NOTICE

StatMapCorpus distributes **annotations, identifiers and image embeddings only**. It does
not contain, mirror or redistribute any images. Each record points to an image hosted by a
third party (`url`). It also carries verification surrogates (`sha256`, `phash`,
`image_width`, `image_height`) that let a user confirm that a file retrieved later is the
file that was annotated.

## Provenance

```
Common Crawl  →  CommonPool / DataComp  →  MapPool  →  StatMapCorpus
```

- **MapPool**: 75,890,407 map-like images identified in CommonPool, released under
  CC BY 4.0.
  - Reference: Schnürer, R. (2024). MapPool – bubbling up an extremely large corpus of
    maps for AI. *Abstracts of the ICA* 8, 22. https://doi.org/10.5194/ica-abs-8-22-2024
  - Available at https://huggingface.co/datasets/sraimund/MapPool
  - StatMapCorpus takes `uid`, `url` and the CLIP ViT-L/14 image embeddings from MapPool,
    which carries them from CommonPool.
  - **Modified:** a subset was selected and annotated anew.
- **CommonPool / DataComp**: an index of image–text pairs from Common Crawl.
  - Reference: Gadre, S. Y. et al. (2023). DataComp: in search of the next generation of
    multimodal datasets. *Advances in Neural Information Processing Systems* 36,
    27092–27112.
  - Its authors distribute the url–text samples and metadata under CC BY 4.0. They state
    that the individual images remain under their own copyrights, that the index is
    provided as is, and that any content downloaded from it is used at the user's own risk
    and subject to the terms or copyright limitations accompanying that content.

Like the collections it derives from, StatMapCorpus stores links rather than images, for
copyright reasons.

Neither the author of MapPool nor the DataComp authors are affiliated with StatMapCorpus
or endorse it.

## Licensing

| Component | Licence |
|---|---|
| Annotations, metadata, documentation (including `candidates.parquet` and `validation.csv`) | **CC BY 4.0**: https://creativecommons.org/licenses/by/4.0/legalcode |
| `download_images.py` | **MIT**: see the licence header in the file |
| CLIP embeddings | derived from MapPool, **CC BY 4.0** (attribution to MapPool required) |
| **Source images** | **Rights remain with their original owners. Not redistributed and not licensed here.** |

Downloading images retrieves files directly from their original hosts. Whether a given
image may be used for a given purpose depends on that image's own copyright status, not on
this dataset's licence. Users are responsible for their own compliance.

## Removal requests

**Rights holders.** Removal requests are honoured.
- Write to **Marta Solarz, m.solarz2@uw.edu.pl**, Faculty of Geography and Regional
  Studies, University of Warsaw, giving the `uid` or `url` of the affected record.
- Requests are acknowledged within 30 days.
- The affected records are removed and a corrected version of the dataset is published,
  without waiting for a scheduled release.

**Personal data.** The images were collected by CommonPool from the public web, and an
audit of CommonPool found personal information in the wider collection (Hong et al. 2025,
https://arxiv.org/abs/2506.17185). StatMapCorpus does not redistribute images and consists
of maps rather than photographs of people. Even so, a linked image may contain personal
data. Data subjects may request erasure of a record under Art. 17 GDPR, either at the
address above or through the University of Warsaw Data Protection Officer at
iod@adm.uw.edu.pl.

Because the dataset contains no images, removal means deleting the identifier, its
annotations and its embedding from the dataset. The image itself remains under its owner's
sole control at all times.

## Citation

Solarz, Marta, 2026, "StatMapCorpus: 23,549 English-language statistical maps from
MapPool, annotated by thematic map type using vision-language models",
https://doi.org/10.58132/FSJGSP, Dane Badawcze UW, V2.