---
annotations_creators:
- no-annotation
language_creators:
- found
language:
- en
license:
- mit
multilinguality:
- monolingual
pretty_name: enwik8
size_categories:
- 10K<n<100K
source_datasets:
- original
task_categories:
- fill-mask
- text-generation
task_ids:
- language-modeling
- masked-language-modeling
dataset_info:
- config_name: enwik8
  features:
  - name: text
    dtype: string
  splits:
  - name: train
    num_bytes: 104299244
    num_examples: 1128024
  download_size: 36445475
  dataset_size: 102383126
- config_name: enwik8-raw
  features:
  - name: text
    dtype: string
  splits:
  - name: train
    num_bytes: 100000008
    num_examples: 1
  download_size: 36445475
  dataset_size: 100000008
---

# Dataset Card for enwik8

## Table of Contents
- [Dataset Description](#dataset-description)
  - [Dataset Summary](#dataset-summary)
  - [Supported Tasks](#supported-tasks-and-leaderboards)
  - [Languages](#languages)
- [Dataset Structure](#dataset-structure)
  - [Data Instances](#data-instances)
  - [Data Fields](#data-instances)
  - [Data Splits](#data-instances)
- [Dataset Creation](#dataset-creation)
  - [Curation Rationale](#curation-rationale)
  - [Source Data](#source-data)
  - [Annotations](#annotations)
  - [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)

## Dataset Description

- **Homepage:** http://mattmahoney.net/dc/textdata.html
- **Repository:** [Needs More Information]
- **Paper:** [Needs More Information]
- **Leaderboard:** https://paperswithcode.com/sota/language-modelling-on-enwiki8
- **Point of Contact:** [Needs More Information]
- **Size of downloaded dataset files:** 36.45 MB
- **Size of the generated dataset:** 102.38 MB
- **Total amount of disk used:** 138.83 MB

### Dataset Summary

The enwik8 dataset is the first 100,000,000 (100M) bytes of the English Wikipedia XML dump on Mar. 3, 2006 and is typically used to measure a model's ability to compress data.

### Supported Tasks and Leaderboards

A leaderboard for byte-level causal language modelling can be found on [paperswithcode](https://paperswithcode.com/sota/language-modelling-on-enwiki8)

### Languages

en

## Dataset Structure

### Data Instances

- **Size of downloaded dataset files:** 36.45 MB
- **Size of the generated dataset:** 102.38 MB
- **Total amount of disk used:** 138.83 MB

```
{
   "text": "In [[Denmark]], the [[Freetown Christiania]] was created in downtown [[Copenhagen]]....",
}
```

### Data Fields

The data fields are the same among all sets.

#### enwik8

- `text`: a `string` feature.

#### enwik8-raw

- `text`: a `string` feature.

### Data Splits

| dataset     | train   |
| ---         | ---     |
| enwik8      | 1128024	|
| enwik8- raw | 1       |

## Dataset Creation

### Curation Rationale

[Needs More Information]

### Source Data

#### Initial Data Collection and Normalization

The data is just English Wikipedia XML dump on Mar. 3, 2006 split by line for enwik8 and not split by line for enwik8-raw.

#### Who are the source language producers?

[Needs More Information]

### Annotations

#### Annotation process

[Needs More Information]

#### Who are the annotators?

[Needs More Information]

### Personal and Sensitive Information

[Needs More Information]

## Considerations for Using the Data

### Social Impact of Dataset

[Needs More Information]

### Discussion of Biases

[Needs More Information]

### Other Known Limitations

[Needs More Information]

## Additional Information

### Dataset Curators

[Needs More Information]

### Licensing Information

[Needs More Information]

### Citation Information

Dataset is not part of a publication, and can therefore not be cited.

### Contributions

Thanks to [@HallerPatrick](https://github.com/HallerPatrick) for adding this dataset and [@mtanghu](https://github.com/mtanghu) for updating it.