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acessibilidade

http://hdl.handle.net/10071/19767
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acessibilidade
DC FieldValueLanguage
dc.contributor.authorRibeiro, E.-
dc.contributor.authorRibeiro, R.-
dc.contributor.authorde Matos, D.-
dc.date.accessioned2020-02-03T15:31:22Z-
dc.date.available2020-02-03T15:31:22Z-
dc.date.issued2019-
dc.identifier.issn1647-0818-
dc.identifier.urihttp://hdl.handle.net/10071/19767-
dc.description.abstractDialog acts reveal the intention behind the utte-red words. Thus, their automatic recognition is im-portant for a dialog system trying to understand itsconversational partner. The study presented in thisarticle approaches that task on the DIHANA corpus,whose three-level dialog act annotation scheme posesproblems which have not been explored in recent stu-dies. In addition to the hierarchical problem, the twolower levels pose multi-label classification problems.Furthermore, each level in the hierarchy refers to adifferent aspect concerning the intention of the spea-ker both in terms of the structure of the dialog and thetask. Also, since its dialogs are in Spanish, it allows usto assess whether the state-of-the-art approaches onEnglish data generalize to a different language. Morespecifically, we compare the performance of differentsegment representation approaches focusing on bothsequences and patterns of words and assess the impor-tance of the dialog history and the relations betweenthe multiple levels of the hierarchy. Concerning thesingle-label classification problem posed by the top le-vel, we show that the conclusions drawn on Englishdata also hold on Spanish data. Furthermore, weshow that the approaches can be adapted to multi-label scenarios. Finally, by hierarchically combiningthe best classifiers for each level, we achieve the bestresults reported for this corpus.por
dc.language.isopor-
dc.publisherUniversidade do Minho; Universidade de Vigo-
dc.relationUID/CEC/50021/2019-
dc.rightsopenAccess-
dc.subjectReconhecimento de actos de diálogopor
dc.subjectClassificação hierárquicapor
dc.subjectClassificação multi-etiquetapor
dc.titleReconhecimento de actos de diálogo hierárquicos e multi-etiqueta em dados em Espanholpor
dc.typearticle-
dc.pagination17 - 40-
dc.peerreviewedyes-
dc.journalLinguamática-
dc.volume11-
dc.number1-
degois.publication.firstPage17-
degois.publication.lastPage40-
degois.publication.issue1-
degois.publication.titleReconhecimento de actos de diálogo hierárquicos e multi-etiqueta em dados em Espanholpor
dc.date.updated2020-02-03T15:28:55Z-
dc.description.versioninfo:eu-repo/semantics/publishedVersion-
dc.identifier.doi10.21814/lm.11.1.278-
dc.subject.fosDomínio/Área Científica::Humanidades::Línguas e Literaturaspor
iscte.identifier.cienciahttps://ciencia.iscte-iul.pt/id/ci-pub-61027-
iscte.alternateIdentifiers.wosWOS:000476638500003-
Appears in Collections:IT-RN - Artigo em revista nacional com arbitragem científica

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