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Entree


Evaluating Methods of Different Paradigms for Subjectivity Classification in Portuguese

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Autor(es):
Belisario, Luana Balador ; Ferreira, Luiz Gabriel ; Salgueiro Pardo, Thiago Alexandre ; Quaresma, P ; Vieira, R ; Aluisio, S ; Moniz, H ; Batista, F ; Goncalves, T
Número total de Autores: 9
Tipo de documento: Artigo Científico
Fonte: COMPUTATIONAL PROCESSING OF THE PORTUGUESE LANGUAGE, PROPOR 2020; v. 12037, p. 9-pg., 2020-01-01.
Resumo

This paper presents the study and comparison of methods of different paradigms to perform subjectivity classification of sentences in Portuguese. This task is part of the sentiment analysis area and consists of automatically identifying the presence or not of opinative information in texts of interest. We have investigated methods based on sentiment lexicons, graphs, machine learning and word embeddings, using datasets of different domains. We achieve good results, outperforming the previous approaches for Portuguese. (AU)

Processo FAPESP: 18/11479-9 - Classificação de subjetividade para a língua portuguesa
Beneficiário:Luiz Gabriel Ferreira
Modalidade de apoio: Bolsas no Brasil - Iniciação Científica