- Description:
The shared task of CoNLL-2003 concerns language-independent named entity recognition and concentrates on four types of named entities: persons, locations, organizations and names of miscellaneous entities that do not belong to the previous three groups.
Source code:
tfds.text.conll2003.Conll2003Versions:
1.0.0(default): Initial release.
Download size:
959.94 KiBDataset size:
3.87 MiBAuto-cached (documentation): Yes
Splits:
| Split | Examples |
|---|---|
'dev' |
3,251 |
'test' |
3,454 |
'train' |
14,042 |
- Feature structure:
FeaturesDict({
'chunks': Sequence(ClassLabel(shape=(), dtype=int64, num_classes=23)),
'ner': Sequence(ClassLabel(shape=(), dtype=int64, num_classes=9)),
'pos': Sequence(ClassLabel(shape=(), dtype=int64, num_classes=47)),
'tokens': Sequence(Text(shape=(), dtype=string)),
})
- Feature documentation:
| Feature | Class | Shape | Dtype | Description |
|---|---|---|---|---|
| FeaturesDict | ||||
| chunks | Sequence(ClassLabel) | (None,) | int64 | |
| ner | Sequence(ClassLabel) | (None,) | int64 | |
| pos | Sequence(ClassLabel) | (None,) | int64 | |
| tokens | Sequence(Text) | (None,) | string |
Supervised keys (See
as_superviseddoc):NoneFigure (tfds.show_examples): Not supported.
Examples (tfds.as_dataframe):
- Citation:
@inproceedings{tjong-kim-sang-de-meulder-2003-introduction,
title = "Introduction to the {C}o{NLL}-2003 Shared Task: Language-Independent Named Entity Recognition",
author = "Tjong Kim Sang, Erik F. and
De Meulder, Fien",
booktitle = "Proceedings of the Seventh Conference on Natural Language Learning at {HLT}-{NAACL} 2003",
year = "2003",
url = "https://www.aclweb.org/anthology/W03-0419",
pages = "142--147",
}