---
language:
- cs
dataset_info:
  features:
  - name: tokens
    sequence: string
  - name: ner_tags
    sequence:
      class_label:
        names:
          '0': O
          '1': B-A
          '2': I-A
          '3': B-G
          '4': I-G
          '5': B-I
          '6': I-I
          '7': B-M
          '8': I-M
          '9': B-O
          '10': I-O
          '11': B-P
          '12': I-P
          '13': B-T
          '14': I-T
  splits:
  - name: train
    num_bytes: 2790709
    num_examples: 7142
  - name: validation
    num_bytes: 346546
    num_examples: 885
  - name: test
    num_bytes: 350577
    num_examples: 890
  download_size: 1181091
  dataset_size: 3487832
configs:
- config_name: default
  data_files:
  - split: train
    path: data/train-*
  - split: validation
    path: data/validation-*
  - split: test
    path: data/test-*
---
# Dataset Card for Dataset Name

<!-- Provide a quick summary of the dataset. -->

This dataset card aims to be a base template for new datasets. It has been generated using [this raw template](https://github.com/huggingface/huggingface_hub/blob/main/src/huggingface_hub/templates/datasetcard_template.md?plain=1).

## Dataset Details

### Dataset Description

This dataset contains the CoNLL-based Extended Czech Named Entity Corpus 2.0 (CNEC 2.0_extended).
The dataset is a collection of Czech texts annotated with named entities.
The original CNEC 2.0 dataset contains 8993 Czech sentences with 35220 Czech named entities (train + validation + test).
The original corpus uses 58 entity types.
The extended version uses only 7 entity types and one additional type for non-entities:
```
Description of entities:
'O' = Outside of a named entity
'B-A' = Beginning of a complex address number (Postal code, street number, even phone number)
'I-A' = Inside of a number in the address
'B-G' = Beginning of a geographical name
'I-G' = Inside of a geographical name
'B-I' = Beginning of an institution name
'I-I' = Inside of an institution name
'B-M' = Beginning of a media name (email, server, website, tv series, etc.)
'I-M' = Inside of a media name
'B-O' = Beginning of an artifact name (book, old movies, etc.)
'I-O' = Inside of an artifact name
'B-P' = Beginning of a person's name
'I-P' = Inside of a person's name
'B-T' = Beginning of a time expression
'I-T' = Inside of a time expression

Labels:
'0': O
'1': B-A
'2': I-A
'3': B-G
'4': I-G
'5': B-I
'6': I-I
'7': B-M
'8': I-M
'9': B-O
'10': I-O
'11': B-P
'12': I-P
'13': B-T
'14': I-T
```

### Dataset Sources [optional]

<!-- Provide the basic links for the dataset. -->

- **Repository:** http://hdl.handle.net/11234/1-3493
- **Paper:** https://link.springer.com/chapter/10.1007/978-3-642-40585-3_20

## Dataset Structure

The dataset is formated in a CONLL format, use the ner_tags for tokenization, spans and langs is only a surplus.

## Dataset Creation

#### Who are the source data producers?

"http://hdl.handle.net/11234/1-3493"

## Citation [optional]

<!-- If there is a paper or blog post introducing the dataset, the APA and Bibtex information for that should go in this section. -->

**BibTeX:**

 ```
 @misc{11234/1-3493,
 title = {{CoNLL}-based Extended Czech Named Entity Corpus 2.0},
 author = {Konkol, Michal and Konop{\'{\i}}k, Miloslav and {\v S}ev{\v c}{\'{\i}}kov{\'a}, Magda and {\v Z}abokrtsk{\'y}, Zden{\v e}k and Strakov{\'a}, Jana and Straka, Milan},
 url = {http://hdl.handle.net/11234/1-3493},
 note = {{LINDAT}/{CLARIAH}-{CZ} digital library at the Institute of Formal and Applied Linguistics ({{\'U}FAL}), Faculty of Mathematics and Physics, Charles University},
 copyright = {Attribution-{NonCommercial}-{ShareAlike} 3.0 Unported ({CC} {BY}-{NC}-{SA} 3.0)},
 year = {2014} }

 @misc{11858/00-097C-0000-0023-1B22-8,
 title = {Czech Named Entity Corpus 2.0},
 author = {{\v S}ev{\v c}{\'{\i}}kov{\'a}, Magda and {\v Z}abokrtsk{\'y}, Zden{\v e}k and Strakov{\'a}, Jana and Straka, Milan},
 url = {http://hdl.handle.net/11858/00-097C-0000-0023-1B22-8},
 note = {{LINDAT}/{CLARIAH}-{CZ} digital library at the Institute of Formal and Applied Linguistics ({{\'U}FAL}), Faculty of Mathematics and Physics, Charles University},
 copyright = {Attribution-{NonCommercial}-{ShareAlike} 3.0 Unported ({CC} {BY}-{NC}-{SA} 3.0)},
 year = {2014} }
```

**APA:**

[More Information Needed]

## Glossary [optional]

<!-- If relevant, include terms and calculations in this section that can help readers understand the dataset or dataset card. -->

[More Information Needed]

## More Information [optional]

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## Dataset Card Authors [optional]

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## Dataset Card Contact

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