Dataset Card for ZelaiHandi🌱

ZelaiHandi🌱: A Large Collection of Basque Texts. ZelaiHandi, which means "large pasture" in Basque, is the largest collection of freely licensed and clean Basque texts to date (March 4th, 2024), gathered from selected web sources. This collection comprises approximately 521 million tokens.

The dataset will receive periodical updates.

The corpus has been released with the objective of “feeding” Large Language Models. Naturally, models that are not strictly "herbivorous" can also ingest ZelaiHandi.

Dataset Details

Dataset Description

• Size: 521M words (4.5GB disk space)
• Language: Basque (EU)
• License: Various CC licenses
• Curated by: Orai NLP Teknologiak

Dataset Structure

The corpus is released in JSONL format. Each document contains the following attributes:

{
        "source": "source", 
        "license": "document license", 
        "lang": "eu", 
        "url": "document url", 
        "title": "document title", 
        "author": "document author if known, null otherwise", 
        "date": "publication date in yyyy[-mm-dd[Thh:mm:ssZ]] format", 
        "text": "document content, ready to use raw text. Title text (for news and articles) is included as well.",
        "domain": "document domain. one of ['news', 'administrative', 'wikipedia', 'science', 'subtitles', 'literature', 'videogames']"
}

Source Data

This is a corpus of the Basque language. It contains 521,546,047 raw words (counted by the 'wc -w' command over the text attribute) in 1.63M documents. It was gathered from various web sources and contains data up to 2024/02/19.

The following table summarizes corpus statistics and license information.

source	base url	domain	tokens (M)	license
Tokikom 📝	https://tokikom.eus/bazkideak/	news	163.72	cc-by / cc-by-sa
Berria	https://berria.eus	news	125.72	cc-by-sa 4.0
Eusko Legebiltzarra	https://www.legebiltzarra.eus	administrative	80.16	public domain
Wikipedia	https://wikipedia.org	wikipedia	63.83	cc-by-sa 4.0
Argia	https://www.argia.eus	news	17.44	cc-by-sa 4.0
Addi	https://addi.ehu.es/	science	17.09	several cc variants
Opendata Euskadi subtiitles	https://opendata.euskadi.eus/catalogo/-/euskarazko-azpitituluak-filmak-eta-telesailak-euskaraz/	subtitles	11.30	cc-by-sa
Hitza	https://hitza.eus	news	9.57	cc-by-sa 4.0
GFA	https://www.bngipuzkoa.eus/	administrative	8.46	Custom copyright license⚠️
Zientzia.eus	https://zientzia.eus	science	8.37	cc-by-sa
Susa	https://www.susa-literatura.eus/	literature	5.77	cc-by
BFA	https://jjggbizkaia.eus	administrative	4.26	Custom copyright license⚠️
Zientzia Kaiera	https://zientziakaiera.eus/	science	1.94	cc-by-sa 3.0
Ekaia	https://ojs.ehu.eus/index.php/ekaia	science	1.80	cc-by-nc-nd 4.0
Ikergazte	https://www.buruxkak.eus/bilatu?bilaketa=ikergazte	science	1.68	cc-by-sa 3.0
Game-erauntsia	https://gamerauntsia.eus/	videogames	0.40	cc-by-sa 4.0
Total			521.55

📝 Tokikom is a Basque local media network. The following websites are included in ZelaiHandi: [28kanala, Aiaraldea, Aikor, Aiurri, Alea, Amezti, Anboto, Antxetamedia, Ataria, Baleike, Barren, Begitu, Berriketan, Drogetenitturri, Erran, Euskalerriairratia, Gitb, Goiena, Guaixe, Hiruka, Karkara, Kronika, Mailope, Maxixatzen, Noaua, Plaentxia, Txintxarri, Uriola, Urolakostakohitza, Uztarria, Zarauzkohitza].

⚠️ Custom license, allows reproducibility. License text here: https://www.bngipuzkoa.eus/WAS/CORP/DJGPortalWEB/aviso_legal.jsp.

⚠️ Custom license, allows reproducibility License text here: https://jjggbizkaia.eus/eu/pribadutasun-politikea.

License

The corpus is comprised of documents from various sources. All documents included have a free license, but each source has its own license. All documents collected are publicly available under free use licenses in their original website. If you are the owner of any data included in the corpus and you would not like to be reproduced here, please contact us.

Bias, Risks, and Limitations

This corpus may reflect societal stereotypes and biases. Additionally, it could contain explicit language, slurs, and hate speech, particularly in fictional texts from literature.

Citation

If you use the corpus please cite the following reference:

@misc{ZelaiHandi,
 title     = {ZelaiHandi: A Large Collection of Basque Texts},
 author    = {Iñaki San Vicente, Gorka Urbizu, Ander Corral, Zuhaitz Beloki, Xabier Saralegi},
 publisher = {Orai NLP Technologies},
 url       = {\url{https://huggingface.co/datasets/orai-nlp/ZelaiHandi}},    
 year = 2024 }

Acknowledgements

Special thanks to the authors of the texts and to the media that have made it possible to publish their content under a free license.

This work has been partially funded by the Basque Government under grant no. KK-2023/00094 (ICL4LANG).

Contact

• Iñaki San Vicente (i.sanvicente@orai.eus)
• Gorka Urbizu (g.urbizu@orai.eus)