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Table 3 External NLP tools and resources used in related work

From: A review on Relation Extraction with an eye on Portuguese

External NLP tools

English

Portuguese

and resources

  

POS tagger

[1, 33, 34, 48, 54, 79]

[38, 39, 48]

Parser

[48, 100]

[11, 42, 48, 96]

WordNet

[26, 53, 56, 93, 98]

–

Wikipedia

[36, 48, 100]

[15, 39, 48, 101]

Ontology

[93]

[19]

NP identifier [84]

–

[42, 96]

NER system

[1, 54, 64, 93]

[11, 15, 19]

OpenNLP [77]

[3, 4, 17, 36, 100]

–

GATE [27]

[93]

–