Datasets:
Multilinguality:
multilingual
Language Creators:
found
Annotations Creators:
no-annotation
Source Datasets:
original
ArXiv:
License:
pretty_name: mC4 | |
annotations_creators: | |
- no-annotation | |
language_creators: | |
- found | |
languages: | |
- af | |
- am | |
- ar | |
- az | |
- be | |
- bg | |
- bg-Latn | |
- bn | |
- ca | |
- ceb | |
- co | |
- cs | |
- cy | |
- da | |
- de | |
- el | |
- el-Latn | |
- en | |
- eo | |
- es | |
- et | |
- eu | |
- fa | |
- fi | |
- fil | |
- fr | |
- fy | |
- ga | |
- gd | |
- gl | |
- gu | |
- ha | |
- haw | |
- hi | |
- hi-Latn | |
- hmn | |
- ht | |
- hu | |
- hy | |
- id | |
- ig | |
- is | |
- it | |
- iw | |
- ja | |
- ja-Latn | |
- jv | |
- ka | |
- kk | |
- km | |
- kn | |
- ko | |
- ku | |
- ky | |
- la | |
- lb | |
- lo | |
- lt | |
- lv | |
- mg | |
- mi | |
- mk | |
- ml | |
- mn | |
- mr | |
- ms | |
- mt | |
- my | |
- ne | |
- nl | |
- "no" | |
- ny | |
- pa | |
- pl | |
- ps | |
- pt | |
- ro | |
- ru | |
- ru-Latn | |
- sd | |
- si | |
- sk | |
- sl | |
- sm | |
- sn | |
- so | |
- sq | |
- sr | |
- st | |
- su | |
- sv | |
- sw | |
- ta | |
- te | |
- tg | |
- th | |
- tr | |
- uk | |
- und | |
- ur | |
- uz | |
- vi | |
- xh | |
- yi | |
- yo | |
- zh | |
- zh-Latn | |
- zu | |
licenses: | |
- odc-by-1-0 | |
multilinguality: | |
- multilingual | |
size_categories: | |
- n<1K | |
- 1K<n<10K | |
- 10K<n<100K | |
- 100K<n<1M | |
- 1M<n<10M | |
- 10M<n<100M | |
- 100M<n<1B | |
- 1B<n<10B | |
source_datasets: | |
- original | |
task_categories: | |
- sequence-modeling | |
task_ids: | |
- language-modeling | |
paperswithcode_id: mc4 | |
# Dataset Card for mC4 | |
## Table of Contents | |
- [Dataset Card for mC4](#dataset-card-for-mc4) | |
- [Table of Contents](#table-of-contents) | |
- [Dataset Description](#dataset-description) | |
- [Dataset Summary](#dataset-summary) | |
- [Supported Tasks and Leaderboards](#supported-tasks-and-leaderboards) | |
- [Languages](#languages) | |
- [Dataset Structure](#dataset-structure) | |
- [Data Instances](#data-instances) | |
- [Data Fields](#data-fields) | |
- [Data Splits](#data-splits) | |
- [Dataset Creation](#dataset-creation) | |
- [Curation Rationale](#curation-rationale) | |
- [Source Data](#source-data) | |
- [Initial Data Collection and Normalization](#initial-data-collection-and-normalization) | |
- [Who are the source language producers?](#who-are-the-source-language-producers) | |
- [Annotations](#annotations) | |
- [Annotation process](#annotation-process) | |
- [Who are the annotators?](#who-are-the-annotators) | |
- [Personal and Sensitive Information](#personal-and-sensitive-information) | |
- [Considerations for Using the Data](#considerations-for-using-the-data) | |
- [Social Impact of Dataset](#social-impact-of-dataset) | |
- [Discussion of Biases](#discussion-of-biases) | |
- [Other Known Limitations](#other-known-limitations) | |
- [Additional Information](#additional-information) | |
- [Dataset Curators](#dataset-curators) | |
- [Licensing Information](#licensing-information) | |
- [Citation Information](#citation-information) | |
- [Contributions](#contributions) | |
## Dataset Description | |
- **Homepage:** https://huggingface.co/datasets/allenai/c4 | |
- **Paper:** https://arxiv.org/abs/1910.10683 | |
### Dataset Summary | |
A multilingual colossal, cleaned version of Common Crawl's web crawl corpus. Based on Common Crawl dataset: "https://commoncrawl.org". | |
This is the version prepared by AllenAI, hosted at this address: https://huggingface.co/datasets/allenai/c4 | |
108 languages are available and are reported in the table below. | |
Note that the languages that end with "-Latn" are simply romanized variants, i.e. written using the Latin script. | |
| language code | language name | | |
|:----------------|:---------------------| | |
| af | Afrikaans | | |
| am | Amharic | | |
| ar | Arabic | | |
| az | Azerbaijani | | |
| be | Belarusian | | |
| bg | Bulgarian | | |
| bg-Latn | Bulgarian (Latin) | | |
| bn | Bangla | | |
| ca | Catalan | | |
| ceb | Cebuano | | |
| co | Corsican | | |
| cs | Czech | | |
| cy | Welsh | | |
| da | Danish | | |
| de | German | | |
| el | Greek | | |
| el-Latn | Greek (Latin) | | |
| en | English | | |
| eo | Esperanto | | |
| es | Spanish | | |
| et | Estonian | | |
| eu | Basque | | |
| fa | Persian | | |
| fi | Finnish | | |
| fil | Filipino | | |
| fr | French | | |
| fy | Western Frisian | | |
| ga | Irish | | |
| gd | Scottish Gaelic | | |
| gl | Galician | | |
| gu | Gujarati | | |
| ha | Hausa | | |
| haw | Hawaiian | | |
| hi | Hindi | | |
| hi-Latn | Hindi (Latin script) | | |
| hmn | Hmong, Mong | | |
| ht | Haitian | | |
| hu | Hungarian | | |
| hy | Armenian | | |
| id | Indonesian | | |
| ig | Igbo | | |
| is | Icelandic | | |
| it | Italian | | |
| iw | former Hebrew | | |
| ja | Japanese | | |
| ja-Latn | Japanese (Latin) | | |
| jv | Javanese | | |
| ka | Georgian | | |
| kk | Kazakh | | |
| km | Khmer | | |
| kn | Kannada | | |
| ko | Korean | | |
| ku | Kurdish | | |
| ky | Kyrgyz | | |
| la | Latin | | |
| lb | Luxembourgish | | |
| lo | Lao | | |
| lt | Lithuanian | | |
| lv | Latvian | | |
| mg | Malagasy | | |
| mi | Maori | | |
| mk | Macedonian | | |
| ml | Malayalam | | |
| mn | Mongolian | | |
| mr | Marathi | | |
| ms | Malay | | |
| mt | Maltese | | |
| my | Burmese | | |
| ne | Nepali | | |
| nl | Dutch | | |
| no | Norwegian | | |
| ny | Nyanja | | |
| pa | Punjabi | | |
| pl | Polish | | |
| ps | Pashto | | |
| pt | Portuguese | | |
| ro | Romanian | | |
| ru | Russian | | |
| ru-Latn | Russian (Latin) | | |
| sd | Sindhi | | |
| si | Sinhala | | |
| sk | Slovak | | |
| sl | Slovenian | | |
| sm | San Marino | | |
| sn | Shona | | |
| so | Somali | | |
| sq | Albanian | | |
| sr | Serbian | | |
| st | Southern Sotho | | |
| su | Sundanese | | |
| sv | Swedish | | |
| sw | Swahili | | |
| ta | Tamil | | |
| te | Telugu | | |
| tg | Tajik | | |
| th | Thai | | |
| tr | Turkish | | |
| uk | Ukrainian | | |
| und | Unknown language | | |
| ur | Urdu | | |
| uz | Uzbek | | |
| vi | Vietnamese | | |
| xh | Xhosa | | |
| yi | Yiddish | | |
| yo | Yoruba | | |
| zh | Chinese | | |
| zh-Latn | Chinese (Latin) | | |
| zu | Zulu | | |
You can load the mC4 subset of any language like this: | |
```python | |
from datasets import load_dataset | |
en_mc4 = load_dataset("mc4", "en") | |
``` | |
And if you can even specify a list of languages: | |
```python | |
from datasets import load_dataset | |
mc4_subset_with_five_languages = load_dataset("mc4", languages=["en", "fr", "es", "de", "zh"]) | |
``` | |
### Supported Tasks and Leaderboards | |
mC4 is mainly intended to pretrain language models and word representations. | |
### Languages | |
The dataset supports 108 languages. | |
## Dataset Structure | |
### Data Instances | |
An example form the `en` config is: | |
``` | |
{'timestamp': '2018-06-24T01:32:39Z', | |
'text': 'Farm Resources in Plumas County\nShow Beginning Farmer Organizations & Professionals (304)\nThere are 304 resources serving Plumas County in the following categories:\nMap of Beginning Farmer Organizations & Professionals serving Plumas County\nVictoria Fisher - Office Manager - Loyalton, CA\nAmy Lynn Rasband - UCCE Plumas-Sierra Administrative Assistant II - Quincy , CA\nShow Farm Income Opportunities Organizations & Professionals (353)\nThere are 353 resources serving Plumas County in the following categories:\nFarm Ranch And Forest Retailers (18)\nMap of Farm Income Opportunities Organizations & Professionals serving Plumas County\nWarner Valley Wildlife Area - Plumas County\nShow Farm Resources Organizations & Professionals (297)\nThere are 297 resources serving Plumas County in the following categories:\nMap of Farm Resources Organizations & Professionals serving Plumas County\nThere are 57 resources serving Plumas County in the following categories:\nMap of Organic Certification Organizations & Professionals serving Plumas County', | |
'url': 'http://www.californialandcan.org/Plumas/Farm-Resources/'} | |
``` | |
### Data Fields | |
The data have several fields: | |
- `url`: url of the source as a string | |
- `text`: text content as a string | |
- `timestamp`: timestamp as a string | |
### Data Splits | |
To build mC4, the authors used [CLD3](https://github.com/google/cld3) to identify over 100 languages. The resulting mC4 subsets for each language are reported in this table: | |
| config | train | validation | | |
|:---------|:--------|:-------------| | |
| af | ? | ? | | |
| am | ? | ? | | |
| ar | ? | ? | | |
| az | ? | ? | | |
| be | ? | ? | | |
| bg | ? | ? | | |
| bg-Latn | ? | ? | | |
| bn | ? | ? | | |
| ca | ? | ? | | |
| ceb | ? | ? | | |
| co | ? | ? | | |
| cs | ? | ? | | |
| cy | ? | ? | | |
| da | ? | ? | | |
| de | ? | ? | | |
| el | ? | ? | | |
| el-Latn | ? | ? | | |
| en | ? | ? | | |
| eo | ? | ? | | |
| es | ? | ? | | |
| et | ? | ? | | |
| eu | ? | ? | | |
| fa | ? | ? | | |
| fi | ? | ? | | |
| fil | ? | ? | | |
| fr | ? | ? | | |
| fy | ? | ? | | |
| ga | ? | ? | | |
| gd | ? | ? | | |
| gl | ? | ? | | |
| gu | ? | ? | | |
| ha | ? | ? | | |
| haw | ? | ? | | |
| hi | ? | ? | | |
| hi-Latn | ? | ? | | |
| hmn | ? | ? | | |
| ht | ? | ? | | |
| hu | ? | ? | | |
| hy | ? | ? | | |
| id | ? | ? | | |
| ig | ? | ? | | |
| is | ? | ? | | |
| it | ? | ? | | |
| iw | ? | ? | | |
| ja | ? | ? | | |
| ja-Latn | ? | ? | | |
| jv | ? | ? | | |
| ka | ? | ? | | |
| kk | ? | ? | | |
| km | ? | ? | | |
| kn | ? | ? | | |
| ko | ? | ? | | |
| ku | ? | ? | | |
| ky | ? | ? | | |
| la | ? | ? | | |
| lb | ? | ? | | |
| lo | ? | ? | | |
| lt | ? | ? | | |
| lv | ? | ? | | |
| mg | ? | ? | | |
| mi | ? | ? | | |
| mk | ? | ? | | |
| ml | ? | ? | | |
| mn | ? | ? | | |
| mr | ? | ? | | |
| ms | ? | ? | | |
| mt | ? | ? | | |
| my | ? | ? | | |
| ne | ? | ? | | |
| nl | ? | ? | | |
| no | ? | ? | | |
| ny | ? | ? | | |
| pa | ? | ? | | |
| pl | ? | ? | | |
| ps | ? | ? | | |
| pt | ? | ? | | |
| ro | ? | ? | | |
| ru | ? | ? | | |
| ru-Latn | ? | ? | | |
| sd | ? | ? | | |
| si | ? | ? | | |
| sk | ? | ? | | |
| sl | ? | ? | | |
| sm | ? | ? | | |
| sn | ? | ? | | |
| so | ? | ? | | |
| sq | ? | ? | | |
| sr | ? | ? | | |
| st | ? | ? | | |
| su | ? | ? | | |
| sv | ? | ? | | |
| sw | ? | ? | | |
| ta | ? | ? | | |
| te | ? | ? | | |
| tg | ? | ? | | |
| th | ? | ? | | |
| tr | ? | ? | | |
| uk | ? | ? | | |
| und | ? | ? | | |
| ur | ? | ? | | |
| uz | ? | ? | | |
| vi | ? | ? | | |
| xh | ? | ? | | |
| yi | ? | ? | | |
| yo | ? | ? | | |
| zh | ? | ? | | |
| zh-Latn | ? | ? | | |
| zu | ? | ? | | |
## Dataset Creation | |
### Curation Rationale | |
[More Information Needed] | |
### Source Data | |
#### Initial Data Collection and Normalization | |
[More Information Needed] | |
#### Who are the source language producers? | |
[More Information Needed] | |
### Annotations | |
#### Annotation process | |
[More Information Needed] | |
#### Who are the annotators? | |
[More Information Needed] | |
### Personal and Sensitive Information | |
[More Information Needed] | |
## Considerations for Using the Data | |
### Social Impact of Dataset | |
[More Information Needed] | |
### Discussion of Biases | |
[More Information Needed] | |
### Other Known Limitations | |
[More Information Needed] | |
## Additional Information | |
### Dataset Curators | |
[More Information Needed] | |
### Licensing Information | |
AllenAI are releasing this dataset under the terms of ODC-BY. By using this, you are also bound by the Common Crawl terms of use in respect of the content contained in the dataset. | |
### Citation Information | |
``` | |
@article{2019t5, | |
author = {Colin Raffel and Noam Shazeer and Adam Roberts and Katherine Lee and Sharan Narang and Michael Matena and Yanqi Zhou and Wei Li and Peter J. Liu}, | |
title = {Exploring the Limits of Transfer Learning with a Unified Text-to-Text Transformer}, | |
journal = {arXiv e-prints}, | |
year = {2019}, | |
archivePrefix = {arXiv}, | |
eprint = {1910.10683}, | |
} | |
``` | |
### Contributions | |
Thanks to [@dirkgr](https://github.com/dirkgr) and [@lhoestq](https://github.com/lhoestq) for adding this dataset. | |