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http://hdl.handle.net/10071/12800
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Title: Classificação prosódica de marcadores discursivos
Authors: Cabarrão, V.
Moniz, H.
Ferreira, J.
Batista, F.
Trancoso, I.
Mata, Ana I.
Curto, S.
Keywords: Marcadores discursivos
Prosódia
Processamento de fala
Classificação automática multiclasse
Issue Date: 2016
Publisher: Associação Portuguesa de Linguística e Faculdade de Letras da Universidade do Porto
Abstract: This work describes the discourse markers present in two corpora for European Portuguese, in different domains (university lectures and map-task dialogues). In this study, we also perform a multiclass automatic classification task based on prosodic features to verify in both corpora which words are discourse markers, which are disfluencies, and which are sentence like-units (SUs). Results show that the selection of discourse markers varies across domain and between speakers. As for the classification task, results show that the discourse markers are better classified in the lectures corpus (87%) than in the dialogue corpus (84%). However, cross?domain experiments evidenced that data trained with the dialogue corpus predicts better the events in the lecture corpus, since this domain displays more speakers and therefore complex patterns. In both corpora, markers are more easily classified as SUs than as disfluencies.
Peer reviewed: yes
URI: http://hdl.handle.net/10071/12800
DOI: 10.21747/2183-9077/rapl2a4
ISSN: 2183-9077
Ciência-IUL: https://ciencia.iscte-iul.pt/id/ci-pub-30904
Appears in Collections:CTI-RN - Artigos em revistas científicas nacionais com arbitragem científica

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