Sentiment Analysis
Mostrando 1-12 de 17 artigos, teses e dissertações.
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1. Investor sentiment and earnings management in Brazil
RESUMO A pesquisa analisa se existe associação temporal entre o sentimento do investidor e o gerenciamento de resultados no Brasil. Vários estudos investigaram os determinantes do gerenciamento de resultados, fatores externos ou internos das empresas e normativos, mas poucos consideraram fatores pessoais, tal como o sentimento dos investidores no Brasil.
Rev. contab. finanç.. Publicado em: 09/12/2019
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2. Imagens e narrativas do Bolsa Família: análise da retórica da grande imprensa
Resumo Este artigo analisa a produção de narrativas, imagens e histórias causais construídas pela grande imprensa (jornais Folha de S. Paulo e O Estado de S. Paulo) acerca de importante política social: o Programa Bolsa Família (PBF). Tais narrativas decorrem de orientações teóricas de políticas públicas ainda pouco desenvolvidas no Brasil - as te
Rev. Adm. Pública. Publicado em: 11/11/2019
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3. IDEAIS DE HOMEM CIVILIZADO VEICULADOS NOS LIVROS DIDÁTICOS DE EDUCAÇÃO MORAL E CÍVICA NA DITADURA CIVIL-MILITAR
RESUMO A Educação Moral e Cívica (EMC), enquanto disciplina específica da cultura escolar, recebeu maior notoriedade no Brasil durante os anos da Ditadura Civil-Militar (1964-1985), sendo os seus livros didáticos significativos veículos de disseminação de controles e valores a serem interiorizados pela nova geração brasileira. Nesse artigo apresent
Hist. Educ.. Publicado em: 28/03/2019
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4. A APLICAÇÃO DA TÉCNICA DE ANÁLISE DE SENTIMENTO EM MÍDIAS SOCIAIS COMO INSTRUMENTO PARA AS PRÁTICAS DA GESTÃO SOCIAL EM NÍVEL GOVERNAMENTAL
Resumo A análise de sentimento é uma técnica de descoberta de conhecimento por meio da mineração de dados, sua finalidade é revelar a opinião das pessoas sobre temas específicos. Essa é uma técnica apropriada para aplicação em fontes de dados não estruturados, como as mídias sociais, que abarcam informações sobre diversos temas, inclusive pol
Rev. Adm. Pública. Publicado em: 2019-02
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5. Anomalies and Investor Sentiment: Empirical Evidences in the Brazilian Market
Abstract This study examined the relationship between investor sentiment and value anomalies in Brazil. In addition, it analyzed if pricing deviations caused by investors with optimistic views are different from those caused by pessimistic investors. The sample included all non-financial firms listed on the B3 (Brasil, Bolsa, Balcão) stock exchange from Jul
BAR, Braz. Adm. Rev.. Publicado em: 28/09/2017
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6. Control ideológico en los programas secundarios transitorios en Historia y Ciencias Sociales (1974-1981)
Abstract The Chilean military coup and subsequent installed dictatorship implied the implementation of disciplinary policies of control over the Chilean educational system. At the curricular level, in 1974, there were adjustments to the existing secondary programs, which lasted until their general replacement in 1981. The aim of this article is to provide a
Educ. Pesqui.. Publicado em: 21/08/2017
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7. Evidências empíricas de um modelo teórico para explicar a noopsicossomática em pessoas vivendo com HIV/AIDS / Empirical evidence of a theoretical model to explain the noopsychosomatic in people living with HIV/AIDS
AIDS is a disease caused by HIV, which destroys the defense mechanisms of the human body because it has as main target immune system cells (CD4+). However, with the emergence of Antiretroviral Therapy, HIV/AIDS was classified as a chronic disease, which improved the quality of life of its bearer and included in their studies variables such as religiosity / s
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/08/2012
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8. The relationship between market sentiment index and stock rates of return: a panel data analysis
This article analyzes the relationship between market sentiment and future stock rates of return. We used a methodology based on principal component analysis to create a sentiment index for the Brazilian market with data from 1999 to 2008. The sample consisted of companies listed on BM&F BOVESPA which were grouped into quintiles, each representing a portfoli
BAR - Brazilian Administration Review. Publicado em: 2012-06
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9. A generic and open framework for multiword expressions treatment : from acquisition to applications
The treatment of multiword expressions (MWEs), like take off, bus stop and big deal, is a challenge for NLP applications. This kind of linguistic construction is not only arbitrary but also much more frequent than one would initially guess. This thesis investigates the behaviour of MWEs across different languages, domains and construction types, proposing an
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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10. SENTIMENT ANALYSIS FOR FINANCIAL NEWS ABOUT PETROBRAS COMPANY / CLASSIFICAÇÃO DE SENTIMENTO PARA NOTÍCIAS SOBRE A PETROBRAS NO MERCADO FINANCEIRO
A huge amount of information is available online, in particular regarding financial news. Current research indicate that stock news have a strong correlation to market variables such as trade volumes, volatility, stock prices and firm earnings. Here, we investigate a Sentiment Analysis problem for financial news. Our goal is to classify financial news as fav
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 01/07/2011
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11. O parto anônimo à luz do constitucionalismo brasileiro / The anonymous birth by the light of brazilian constitutionalism.
In Brazil, the clandestinity of abandonment, increased to the absence of realization of fundamental rights and the puerperal psychosis, causes newborns are exposed under subumanas. For various reasons the biological parents reject their children since gestation, while providing them with proper development. This sentiment does not justify the abandonment unw
Publicado em: 2010
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12. The relationship between market sentiment index and stock returns: a panel data analysis / A relação entre índice de sentimento de mercado e as taxas de retorno das ações: uma análise com dados em painel
In classical nance theory investor sentiment is not considered an important factor in asset pricing. Although the existence of investor sentiment is not denied, theories assume that in competitive markets quasi-rational behavior is quickly oset by rational agents. The main goal of this thesis is to investigate the relationship between investor sentiment and
Publicado em: 2009