README.md

---
annotations_creators:
- expert-generated
language_creators:
- found
language:
- st
license:
- other
multilinguality:
- monolingual
size_categories:
- 1K<n<10K
source_datasets:
- original
task_categories:
- token-classification
task_ids:
- named-entity-recognition
pretty_name: Sesotho NER Corpus
license_details: Creative Commons Attribution 2.5 South Africa License
dataset_info:
  features:
  - name: id
    dtype: string
  - name: tokens
    sequence: string
  - name: ner_tags
    sequence:
      class_label:
        names:
          '0': OUT
          '1': B-PERS
          '2': I-PERS
          '3': B-ORG
          '4': I-ORG
          '5': B-LOC
          '6': I-LOC
          '7': B-MISC
          '8': I-MISC
  config_name: sesotho_ner_corpus
  splits:
  - name: train
    num_bytes: 4502576
    num_examples: 9472
  download_size: 30421109
  dataset_size: 4502576
---

# Dataset Card for Sesotho NER Corpus

## 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:** [Sesotho Ner Corpus Homepage](https://repo.sadilar.org/handle/20.500.12185/334)
- **Repository:**
- **Paper:**
- **Leaderboard:**
- **Point of Contact:**  [Martin Puttkammer](mailto:[email protected])

### Dataset Summary

The Sesotho Ner Corpus is a Sesotho dataset developed by [The Centre for Text Technology (CTexT), North-West University, South Africa](http://humanities.nwu.ac.za/ctext). The data is based on documents from the South African goverment domain and crawled from gov.za websites. It was created to support NER task for Sesotho language. The dataset uses CoNLL shared task annotation standards.

### Supported Tasks and Leaderboards

[More Information Needed]

### Languages

The language supported is Sesotho.

## Dataset Structure

### Data Instances

A data point consists of sentences seperated by empty line and tab-seperated tokens and tags. 
```
{'id': '0',
 'ner_tags': [0, 0, 0, 0, 0],
 'tokens': ['Morero', 'wa', 'weposaete', 'ya', 'Ditshebeletso']
}
```

### Data Fields

- `id`: id of the sample
- `tokens`: the tokens of the example text
- `ner_tags`: the NER tags of each token

The NER tags correspond to this list:
```
"OUT", "B-PERS", "I-PERS", "B-ORG", "I-ORG", "B-LOC", "I-LOC", "B-MISC", "I-MISC",
```
The NER tags have the same format as in the CoNLL shared task: a B denotes the first item of a phrase and an I any non-initial word. There are four types of phrases: person names (PER), organizations (ORG), locations (LOC) and miscellaneous names (MISC). (OUT) is used for tokens not considered part of any named entity.

### Data Splits

The data was not split.

## Dataset Creation

### Curation Rationale

The data was created to help introduce resources to new language - Sesotho.

[More Information Needed]

### Source Data

#### Initial Data Collection and Normalization

The data is based on South African government domain and was crawled from gov.za websites.

#### Who are the source language producers?

The data was produced by writers of South African government websites - gov.za

[More Information Needed]

### Annotations

#### Annotation process

[More Information Needed]

#### Who are the annotators?

The data was annotated during the NCHLT text resource development project.

[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

The annotated data sets were developed by the Centre for Text Technology (CTexT, North-West University, South Africa).

See: [more information](http://www.nwu.ac.za/ctext)

### Licensing Information

The data is under the [Creative Commons Attribution 2.5 South Africa License](http://creativecommons.org/licenses/by/2.5/za/legalcode)

### Citation Information

```
@inproceedings{sesotho_ner_corpus,
  author    = {M. Setaka and               
              Roald Eiselen},
  title     = {NCHLT Sesotho Named Entity Annotated Corpus},
  booktitle = {Eiselen, R. 2016. Government domain named entity recognition for South African languages. Proceedings of the 10th      Language Resource and Evaluation Conference, Portorož, Slovenia.},
  year      = {2016},
  url       = {https://repo.sadilar.org/handle/20.500.12185/334},
}
```

### Contributions

Thanks to [@yvonnegitau](https://github.com/yvonnegitau) for adding this dataset.