Automatic Expansion of a Social Judgment Lexicon for Sentiment Analysis

Detalhes bibliográficos
Autor(a) principal: Silva, Mário J.
Data de Publicação: 2010
Outros Autores: Carvalho, Paula, Costa, Carlos, Sarmento, Luís
Tipo de documento: Relatório
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10451/14068
Resumo: Reviewed by Francisco Couto
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spelling Automatic Expansion of a Social Judgment Lexicon for Sentiment AnalysisOpinion MiningSentiment AnalysisSentiment LexiconHuman PredicatesReviewed by Francisco CoutoWe present a new method for automatically enlarging a sentiment lexicon for mining social judgments from text, i.e., extracting opinions about human subjects. We use a two-step approach: first, we find which adjectives can be used as human modifiers, and then we assign their polarity attribute. To identify the human modifiers, we developed a set of hand-crafted lexico-syntactic rules representing elementary copular and adnominal constructions where such predicates can be found. These are applied to a large n-gram collection, gathering evidence about human/not-human adjective behavior. The adjective and rule frequencies are then used as input features to a statistical classifier. In the second and final stage, we assign polarities to human adjectives, by exploring the graph of synonyms. We calculate the shortest distances of each adjective with unknown polarity to the human adjectives of each sentiment class with prior polarity in the initial lexicon. The computed distances for each adjective are then used as the input features of a statistical polarity classifier. The application of the proposed method to a collection of manually annotated adjectives showed its effectiveness for developing a fine-grained sentiment lexicon for social judgment, which can be seen as a human domain-specific alternative to general-purpose lexicons. We focus on the polarity classification of Portuguese human adjective predicates, but the studied method could be applied to other languages and semantic predicates. The lexicon of human adjectives with polarities produced with this method is now available as an open resource.Repositório da Universidade de LisboaSilva, Mário J.Carvalho, PaulaCosta, CarlosSarmento, Luís2010-12-31T11:48:14Z2010-12-31T11:48:14Z2010-12-31info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/reportapplication/pdfhttp://hdl.handle.net/10451/14068enginfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-14T15:08:48ZPortal AgregadorONG
dc.title.none.fl_str_mv Automatic Expansion of a Social Judgment Lexicon for Sentiment Analysis
title Automatic Expansion of a Social Judgment Lexicon for Sentiment Analysis
spellingShingle Automatic Expansion of a Social Judgment Lexicon for Sentiment Analysis
Silva, Mário J.
Opinion Mining
Sentiment Analysis
Sentiment Lexicon
Human Predicates
title_short Automatic Expansion of a Social Judgment Lexicon for Sentiment Analysis
title_full Automatic Expansion of a Social Judgment Lexicon for Sentiment Analysis
title_fullStr Automatic Expansion of a Social Judgment Lexicon for Sentiment Analysis
title_full_unstemmed Automatic Expansion of a Social Judgment Lexicon for Sentiment Analysis
title_sort Automatic Expansion of a Social Judgment Lexicon for Sentiment Analysis
author Silva, Mário J.
author_facet Silva, Mário J.
Carvalho, Paula
Costa, Carlos
Sarmento, Luís
author_role author
author2 Carvalho, Paula
Costa, Carlos
Sarmento, Luís
author2_role author
author
author
dc.contributor.none.fl_str_mv Repositório da Universidade de Lisboa
dc.contributor.author.fl_str_mv Silva, Mário J.
Carvalho, Paula
Costa, Carlos
Sarmento, Luís
dc.subject.por.fl_str_mv Opinion Mining
Sentiment Analysis
Sentiment Lexicon
Human Predicates
topic Opinion Mining
Sentiment Analysis
Sentiment Lexicon
Human Predicates
description Reviewed by Francisco Couto
publishDate 2010
dc.date.none.fl_str_mv 2010-12-31T11:48:14Z
2010-12-31T11:48:14Z
2010-12-31
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/report
format report
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10451/14068
url http://hdl.handle.net/10451/14068
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
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reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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repository.name.fl_str_mv
repository.mail.fl_str_mv
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