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2020 | OriginalPaper | Buchkapitel

Evaluating Methods of Different Paradigms for Subjectivity Classification in Portuguese

verfasst von : Luana Balador Belisário, Luiz Gabriel Ferreira, Thiago Alexandre Salgueiro Pardo

Erschienen in: Computational Processing of the Portuguese Language

Verlag: Springer International Publishing

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Abstract

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.

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Metadaten
Titel
Evaluating Methods of Different Paradigms for Subjectivity Classification in Portuguese
verfasst von
Luana Balador Belisário
Luiz Gabriel Ferreira
Thiago Alexandre Salgueiro Pardo
Copyright-Jahr
2020
DOI
https://doi.org/10.1007/978-3-030-41505-1_25

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