README.md

---
annotations_creators:
- no-annotation
language_creators:
- found
language:
- cs
- de
- en
- fi
- fr
- gu
- kk
- lt
- ru
- zh
license:
- unknown
multilinguality:
- translation
size_categories:
- 10M<n<100M
source_datasets:
- extended|europarl_bilingual
- extended|news_commentary
- extended|opus_paracrawl
- extended|un_multi
task_categories:
- translation
task_ids: []
pretty_name: WMT19
dataset_info:
- config_name: cs-en
  features:
  - name: translation
    dtype:
      translation:
        languages:
        - cs
        - en
  splits:
  - name: train
    num_bytes: 1314866170
    num_examples: 7270695
  - name: validation
    num_bytes: 696221
    num_examples: 2983
  download_size: 665590448
  dataset_size: 1315562391
- config_name: de-en
  features:
  - name: translation
    dtype:
      translation:
        languages:
        - de
        - en
  splits:
  - name: train
    num_bytes: 7645655677
    num_examples: 34782245
  - name: validation
    num_bytes: 757641
    num_examples: 2998
  download_size: 4079732256
  dataset_size: 7646413318
- config_name: fi-en
  features:
  - name: translation
    dtype:
      translation:
        languages:
        - fi
        - en
  splits:
  - name: train
    num_bytes: 1422916995
    num_examples: 6587448
  - name: validation
    num_bytes: 691833
    num_examples: 3000
  download_size: 739629820
  dataset_size: 1423608828
- config_name: fr-de
  features:
  - name: translation
    dtype:
      translation:
        languages:
        - fr
        - de
  splits:
  - name: train
    num_bytes: 2358405621
    num_examples: 9824476
  - name: validation
    num_bytes: 441418
    num_examples: 1512
  download_size: 1261830726
  dataset_size: 2358847039
- config_name: gu-en
  features:
  - name: translation
    dtype:
      translation:
        languages:
        - gu
        - en
  splits:
  - name: train
    num_bytes: 590747
    num_examples: 11670
  - name: validation
    num_bytes: 774613
    num_examples: 1998
  download_size: 730223
  dataset_size: 1365360
- config_name: kk-en
  features:
  - name: translation
    dtype:
      translation:
        languages:
        - kk
        - en
  splits:
  - name: train
    num_bytes: 9157334
    num_examples: 126583
  - name: validation
    num_bytes: 846849
    num_examples: 2066
  download_size: 5759291
  dataset_size: 10004183
- config_name: lt-en
  features:
  - name: translation
    dtype:
      translation:
        languages:
        - lt
        - en
  splits:
  - name: train
    num_bytes: 513082481
    num_examples: 2344893
  - name: validation
    num_bytes: 541945
    num_examples: 2000
  download_size: 284890393
  dataset_size: 513624426
- config_name: ru-en
  features:
  - name: translation
    dtype:
      translation:
        languages:
        - ru
        - en
  splits:
  - name: train
    num_bytes: 13721347178
    num_examples: 37492126
  - name: validation
    num_bytes: 1085588
    num_examples: 3000
  download_size: 6167016481
  dataset_size: 13722432766
- config_name: zh-en
  features:
  - name: translation
    dtype:
      translation:
        languages:
        - zh
        - en
  splits:
  - name: train
    num_bytes: 6391177013
    num_examples: 25984574
  - name: validation
    num_bytes: 1107514
    num_examples: 3981
  download_size: 3615575187
  dataset_size: 6392284527
configs:
- config_name: cs-en
  data_files:
  - split: train
    path: cs-en/train-*
  - split: validation
    path: cs-en/validation-*
- config_name: de-en
  data_files:
  - split: train
    path: de-en/train-*
  - split: validation
    path: de-en/validation-*
- config_name: fi-en
  data_files:
  - split: train
    path: fi-en/train-*
  - split: validation
    path: fi-en/validation-*
- config_name: fr-de
  data_files:
  - split: train
    path: fr-de/train-*
  - split: validation
    path: fr-de/validation-*
- config_name: gu-en
  data_files:
  - split: train
    path: gu-en/train-*
  - split: validation
    path: gu-en/validation-*
- config_name: kk-en
  data_files:
  - split: train
    path: kk-en/train-*
  - split: validation
    path: kk-en/validation-*
- config_name: lt-en
  data_files:
  - split: train
    path: lt-en/train-*
  - split: validation
    path: lt-en/validation-*
- config_name: ru-en
  data_files:
  - split: train
    path: ru-en/train-*
  - split: validation
    path: ru-en/validation-*
- config_name: zh-en
  data_files:
  - split: train
    path: zh-en/train-*
  - split: validation
    path: zh-en/validation-*
---

# Dataset Card for "wmt19"

## 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)
  - [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)
  - [Contributions](#contributions)

## Dataset Description

- **Homepage:** [http://www.statmt.org/wmt19/translation-task.html](http://www.statmt.org/wmt19/translation-task.html)
- **Repository:** [More Information Needed](https://github.com/huggingface/datasets/blob/master/CONTRIBUTING.md#how-to-contribute-to-the-dataset-cards)
- **Paper:** [More Information Needed](https://github.com/huggingface/datasets/blob/master/CONTRIBUTING.md#how-to-contribute-to-the-dataset-cards)
- **Point of Contact:** [More Information Needed](https://github.com/huggingface/datasets/blob/master/CONTRIBUTING.md#how-to-contribute-to-the-dataset-cards)
- **Size of downloaded dataset files:** 2.02 GB
- **Size of the generated dataset:** 1.32 GB
- **Total amount of disk used:** 3.33 GB

### Dataset Summary

<div class="course-tip course-tip-orange bg-gradient-to-br dark:bg-gradient-to-r before:border-orange-500 dark:before:border-orange-800 from-orange-50 dark:from-gray-900 to-white dark:to-gray-950 border border-orange-50 text-orange-700 dark:text-gray-400">
  <p><b>Warning:</b> There are issues with the Common Crawl corpus data (<a href="https://www.statmt.org/wmt13/training-parallel-commoncrawl.tgz">training-parallel-commoncrawl.tgz</a>):</p>
  <ul>
    <li>Non-English files contain many English sentences.</li>
    <li>Their "parallel" sentences in English are not aligned: they are uncorrelated with their counterpart.</li>
  </ul>
  <p>We have contacted the WMT organizers, and in response, they have indicated that they do not have plans to update the Common Crawl corpus data. Their rationale pertains to the expectation that such data has been superseded, primarily by CCMatrix, and to some extent, by ParaCrawl datasets.</p>
</div>

Translation dataset based on the data from statmt.org.

Versions exist for different years using a combination of data
sources. The base `wmt` allows you to create a custom dataset by choosing
your own data/language pair. This can be done as follows:

```python
from datasets import inspect_dataset, load_dataset_builder

inspect_dataset("wmt19", "path/to/scripts")
builder = load_dataset_builder(
    "path/to/scripts/wmt_utils.py",
    language_pair=("fr", "de"),
    subsets={
        datasets.Split.TRAIN: ["commoncrawl_frde"],
        datasets.Split.VALIDATION: ["euelections_dev2019"],
    },
)

# Standard version
builder.download_and_prepare()
ds = builder.as_dataset()

# Streamable version
ds = builder.as_streaming_dataset()
```

### Supported Tasks and Leaderboards

[More Information Needed](https://github.com/huggingface/datasets/blob/master/CONTRIBUTING.md#how-to-contribute-to-the-dataset-cards)

### Languages

[More Information Needed](https://github.com/huggingface/datasets/blob/master/CONTRIBUTING.md#how-to-contribute-to-the-dataset-cards)

## Dataset Structure

### Data Instances

#### cs-en

- **Size of downloaded dataset files:** 2.02 GB
- **Size of the generated dataset:** 1.32 GB
- **Total amount of disk used:** 3.33 GB

An example of 'validation' looks as follows.
```

```

### Data Fields

The data fields are the same among all splits.

#### cs-en
- `translation`: a multilingual `string` variable, with possible languages including `cs`, `en`.

### Data Splits

|name | train |validation|
|-----|------:|---------:|
|cs-en|7270695|      2983|

## Dataset Creation

### Curation Rationale

[More Information Needed](https://github.com/huggingface/datasets/blob/master/CONTRIBUTING.md#how-to-contribute-to-the-dataset-cards)

### Source Data

#### Initial Data Collection and Normalization

[More Information Needed](https://github.com/huggingface/datasets/blob/master/CONTRIBUTING.md#how-to-contribute-to-the-dataset-cards)

#### Who are the source language producers?

[More Information Needed](https://github.com/huggingface/datasets/blob/master/CONTRIBUTING.md#how-to-contribute-to-the-dataset-cards)

### Annotations

#### Annotation process

[More Information Needed](https://github.com/huggingface/datasets/blob/master/CONTRIBUTING.md#how-to-contribute-to-the-dataset-cards)

#### Who are the annotators?

[More Information Needed](https://github.com/huggingface/datasets/blob/master/CONTRIBUTING.md#how-to-contribute-to-the-dataset-cards)

### Personal and Sensitive Information

[More Information Needed](https://github.com/huggingface/datasets/blob/master/CONTRIBUTING.md#how-to-contribute-to-the-dataset-cards)

## Considerations for Using the Data

### Social Impact of Dataset

[More Information Needed](https://github.com/huggingface/datasets/blob/master/CONTRIBUTING.md#how-to-contribute-to-the-dataset-cards)

### Discussion of Biases

[More Information Needed](https://github.com/huggingface/datasets/blob/master/CONTRIBUTING.md#how-to-contribute-to-the-dataset-cards)

### Other Known Limitations

[More Information Needed](https://github.com/huggingface/datasets/blob/master/CONTRIBUTING.md#how-to-contribute-to-the-dataset-cards)

## Additional Information

### Dataset Curators

[More Information Needed](https://github.com/huggingface/datasets/blob/master/CONTRIBUTING.md#how-to-contribute-to-the-dataset-cards)

### Licensing Information

[More Information Needed](https://github.com/huggingface/datasets/blob/master/CONTRIBUTING.md#how-to-contribute-to-the-dataset-cards)

### Citation Information

```

@ONLINE {wmt19translate,
    author = "Wikimedia Foundation",
    title  = "ACL 2019 Fourth Conference on Machine Translation (WMT19), Shared Task: Machine Translation of News",
    url    = "http://www.statmt.org/wmt19/translation-task.html"
}

```


### Contributions

Thanks to [@patrickvonplaten](https://github.com/patrickvonplaten), [@mariamabarham](https://github.com/mariamabarham), [@thomwolf](https://github.com/thomwolf) for adding this dataset.