CitiusTagger and CitiusNec
A PoS-Tagger and Named Entity Classification tool for Portuguese, English, Galician, and Spanish
CitiusTagger / CitiusNec is an open source software, written in Perl, to perform both PoS tagging and Named Entity Classification in the Portuguese, English, Galician, and Spanish languages. Since 2017, it is the PoS tagger module of the LinguaKit project. It has been developed at CITIUS by the ProLNat@GE group.
It makes use of the same tagset as FreeLing.
You can test it in our DEMO.
You can find a description of this tool in the following articles:
Requirements
'Storable' Perl module (for Galician language). You may install the module with CPAN:
# cpan>install Storable
How to install
# tar xzvf CitiusTool.tar.gz
# cd CitiusTool
# sh install-citiustool.sh
How to use
# sh nec.sh
Syntax: nec.sh language file
language=pt, es, en, gl
file= path of the file input
Spanish PoS-Tagger
The Spanish POS-tagger has been trained with the Ancora corpus. The current version of the lexicon contains the same forms as FreeLing.
.Portuguese PoS-Tagger
The European Portuguese FreeLing POS-tagger has been trained with the following linguistic resources:
- Bosque 8.0 from Linguateca: a 138,000 token corpus from the Floresta Sintá(c)tica, manually revised by linguists. It has been revised and adapted to freeling format.
- Label-Lex (SW) from Label: a 900,000 single-word token lexicon generated from 120,000 lemmas. It has been adapted to freeling format and to the corpus.
Galician PoS-Tagger
The Galician POS-tagger has been trained with the Xiada corpus. The current version of the lexicon contains the same forms as FreeLing.
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