flair.datasets.sequence_labeling.CONLL_03

class flair.datasets.sequence_labeling.CONLL_03(base_path=None, column_format={0: 'text', 1: 'pos', 3: 'ner'}, in_memory=True, **corpusargs)View on GitHub

Bases: ColumnCorpus

__init__(base_path=None, column_format={0: 'text', 1: 'pos', 3: 'ner'}, in_memory=True, **corpusargs)View on GitHub

Initialize the CoNLL-03 corpus.

This is only possible if you’ve manually downloaded it to your machine. Obtain the corpus from https://www.clips.uantwerpen.be/conll2003/ner/ and put the eng.testa, .testb, .train files in a folder called ‘conll_03’. Then set the base_path parameter in the constructor to the path to the parent directory where the conll_03 folder resides. If using entity linking, the conll03 dateset is reduced by about 20 Documents, which are not part of the yago dataset. :type base_path: Union[str, Path, None] :param base_path: Path to the CoNLL-03 corpus (i.e. ‘conll_03’ folder) on your machine POS tags or chunks respectively :type in_memory: bool :param in_memory: If True, keeps dataset in memory giving speedups in training. :param document_as_sequence: If True, all sentences of a document are read into a single Sentence object

Methods

__init__([base_path, column_format, in_memory])	Initialize the CoNLL-03 corpus.
add_label_noise(label_type, labels[, ...])	Generates uniform label noise distribution in the chosen dataset split.
downsample([percentage, downsample_train, ...])	Randomly downsample the corpus to the given percentage (by removing data points).
filter_empty_sentences()	A method that filters all sentences consisting of 0 tokens.
filter_long_sentences(max_charlength)	A method that filters all sentences for which the plain text is longer than a specified number of characters.
get_all_sentences()	Returns all sentences (spanning all three splits) in the Corpus.
get_label_distribution()	Counts occurrences of each label in the corpus and returns them as a dictionary object.
make_label_dictionary(label_type[, ...])	Creates a dictionary of all labels assigned to the sentences in the corpus.
make_tag_dictionary(tag_type)	Create a tag dictionary of a given label type.
make_vocab_dictionary([max_tokens, min_freq])	Creates a Dictionary of all tokens contained in the corpus.
obtain_statistics([label_type, pretty_print])	Print statistics about the corpus, including the length of the sentences and the labels in the corpus.

Attributes

dev	The dev split as a torch.utils.data.Dataset object.
test	The test split as a torch.utils.data.Dataset object.
train	The training split as a torch.utils.data.Dataset object.