Agettivu, aggitivu o aghjettivu? POS Tagging Corsican Dialects

Alice Millour (1) , Laurent Kevers (2) , Lorenza Brasile (3) , Alberto Ghia (4)

1 LIASD - Laboratoire d'Informatique Avancée de Saint-Denis
2 Università di Corsica Pasquale Paoli [Université de Corse Pascal Paoli]
3 UniGe - Università degli studi di Genova = University of Genoa
4 UNITO - Università degli studi di Torino = University of Turin

In this paper we present a series of experiments towards POS tagging Corsican, a less-resourced language spoken in Corsica and linguistically related to Italian. The first contribution is Corsican-POS, the first gold standard POS-tagged corpus for Corsica, composed of 500 sentences manually annotated with the Universal POS tagset. Our second contribution is a set of experiments and evaluation of POS tagging models which starts with a baseline model for Italian and is aimed at finding the best training configuration, namely in terms of the size and combination strategy of the existing raw and annotated resources.These experiments result in (i) the first POS tagger for Corsican, reaching an accuracy of 93.38 %, (ii) a quantification of the gain provided by the use of each available resource. We find that the optimal configuration uses Italian word embeddings further specialized with Corsican embeddings and trained on the largest gold corpus for Corsican available so far.

Keywords: POS tagging; less-resourced languages; Corsican

Domains: Computer Science [cs]; Computation and Language [cs.CL]

Alice Millour, Laurent Kevers, Lorenza Brasile, Alberto Ghia. Agettivu, aggitivu o aghjettivu? POS Tagging Corsican Dialects. LREC-COLING 2024, May 2024, Turin, Italy. ⟨hal-04534608⟩