Automatic Expansion of a Social Judgment Lexicon for Sentiment Analysis
Autor(a) principal: | |
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Data de Publicação: | 2010 |
Outros Autores: | , , |
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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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:RCAAP2023-11-08T15:59:38Zoai:repositorio.ul.pt:10451/14068Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T21:35:56.097533Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
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 |
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info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf |
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reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799134258117214208 |