conll2003

• 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.

• Homepage: https://www.aclweb.org/anthology/W03-0419/

• Source code: tfds.text.conll2003.Conll2003

• Versions:

  • 1.0.0 (default): Initial release.

• Download size: 959.94 KiB

• Dataset size: 3.87 MiB

• Auto-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_supervised doc): None

• Figure (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",
}

conll2003/conll2003 (default config)