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A Classification of Adjectives for Polarity Lexicons Enhancement

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dc.contributor.author Vázquez, Silvia
dc.contributor.author Bel Rafecas, Núria
dc.date.accessioned 2013-02-26T10:08:04Z
dc.date.available 2013-02-26T10:08:04Z
dc.date.issued 2012
dc.identifier.citation Vázquez S, Bel N. A Classification of Adjectives for Polarity Lexicons Enhancement. In: Calzolari N, Choukri K, Declerck T (et al.), editors. Proceedings of the Eight International Conference on Language Resources and Evaluation (LREC'12); 2012 May 23-25; Istanbul, Turkey. Paris: European Language Resources Association; 2012. p. 3557-3561.
dc.identifier.uri http://hdl.handle.net/10230/20419
dc.description.abstract Subjective language detection is one of the most important challenges in Sentiment Analysis. Because of the weight and frequency in opinionated texts, adjectives are considered a key piece in the opinion extraction process. These subjective units are more and more frequently collected in polarity lexicons in which they appear annotated with their prior polarity. However, at the moment, any polarity lexicon takes into account prior polarity variations across domains. This paper proves that a majority of adjectives change their prior polarity value depending on the domain. We propose a distinction between domain dependent and romain independent adjectives. Moreover, our analysis led us to propose a further classification related to subjectivity degree: constant, mixed and highly subjective adjectives. Following this classification, polarity values will be a better support for Sentiment Analysis.
dc.format.mimetype application/pdf
dc.language.iso eng
dc.publisher ELRA (European Language Resources Association)
dc.relation.ispartof Calzolari N, Choukri K, Declerck T (et al.), editors. Proceedings of the Eight International Conference on Language Resources and Evaluation (LREC'12); 2012 May 23-25; Istanbul, Turkey. Paris: European Language Resources Association; 2012. p. 3557-3561.
dc.rights © 2012 ELRA - European Language Resources Association. All rights reserved.
dc.title A Classification of Adjectives for Polarity Lexicons Enhancement
dc.type info:eu-repo/semantics/conferenceObject
dc.subject.keyword Sentiment Analysis
dc.subject.keyword Opinion Mining
dc.subject.keyword Polarity Lexicon
dc.relation.projectID info:eu-repo/grantAgreement/EC/FP7/248064
dc.rights.accessRights info:eu-repo/semantics/openAccess
dc.type.version info:eu-repo/semantics/publishedVersion


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