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Mostrando 13-24 de 76 artigos, teses e dissertações.
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13. Ambiente virtual da aprendizagem de Matemática EAD: o modelo wikipédia e novas perspectivas
O objetivo deste trabalho é propor uma nova gama de funcionalidades para Ambientes Virtuais de Aprendizagem (AVAs) em ambiente web puro, sendo que muitas destas já são largamente utilizadas sem fins acadêmicos na internet, baseado na crença de que a implementação de tais funcionalidades pode contribuir para tornar a experiência de aprendizado mais di
Publicado em: 2011
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14. Indexing and querying dataspaces
Over theWeb, distributed and heterogeneous sources with structured and related content form rich repositories of information commonly referred to as dataspaces. To provide access to this heterogeneous data, information integration systems have traditionally relied on the availability of a mediated schema, along with mappings between this schema and the schem
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2011
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15. Um mecanismo de consulta temporal por palavras-chave em páginas web
Este trabalho apresenta a ferramenta Chronos, que oferece uma interface Web que possibilita aos usuários realizarem consultas temporais por palavras-chave em páginas Web. Isto é possível através da exploração das informações temporais presentes na consulta e no conteúdo das páginas. Experimentos iniciais mostram que Chronos melhora a qualidade dos
Publicado em: 2010
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16. Stemming para a língua portuguesa : estudo, análise e melhoria do algoritmo RSLP / Stemming for the portuguese language: study, analysis and improvement of the RSLP algorithm
O presente trabalho apresenta uma ferramenta para a realização de stemming na língua portuguesa. O objetivo principal é proporcionar melhorias e disponibilizar as funcionalidades do algoritmo RSLP, previamente proposto na literatura. Além da análise, das melhorias de desempenho, da documentação do código e das novas funcionalidades adicionadas, o tr
Publicado em: 2010
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17. Tecendo estórias das comunidades remanescentes de quilombolas aqui e acolá / Weaving stories of remnant communities maroon here and there
This thesis proposed to collect and analyse oral narratives in slave reminiscent communities (also known as "quilombolas") from Caxias-Maranhão. The collection was realized in 2008, and the tales were analysed regarding their aesthetics and ethical sense, as well as the social function performed by their plot. All their cultural activities, such as "dança
Publicado em: 2010
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18. Exploração da popularidade para busca de informação em blogs
The blogosphere is a highly dynamic and interconnected subset of the Web that has triggered a lot of interest due to its social and personal nature. In this dissertation, we present a study of an important social aspect of these blogs, namely popularity. The most popular blogs from four important blog domains in Brazil were crawled for a considerable period
Publicado em: 2009
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19. UTILIZAÇÃO DE ÓLEO DE GIRASSOL COMO COMBUSTÍVEL EM UNIDADE DE POTÊNCIA MONOCILINDRO CICLO DIESEL / USE OF CRUDE SUNFLOWER OIL AS FUEL IN A DIESEL CYCLE MONO-CYLINDER ENGINE
The many oil crises that have occurred in the past decades and the dependence of the Brazilian energy matrix on fossil fuels, as well as the environmental problems caused by their use, have pressed for advances in the search for new alternative fuels and, in a way, also made them possible. Fuels made from vegetable oils are particularly interesting, as they
Publicado em: 2009
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20. NavCon : uma arquitetura para navegação conceitual em ambientes de gestão do conhecimento / NavCon: Uma Arquitetura para Navegação Conceitual em Ambientes de Gestão do Conhecimento
Intranets provide access to corporate information, systems and tools for cooperative work. In corporate environments, intranets have been important resource for knowledge management. Intranets are heavily Web-based environments, where the demand for an item is generally performed by a search engine followed by manual navigation. Most users have difficulty in
Publicado em: 2009
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21. Applying a semantic layer in a source code retrieval tool
The challenge for achieving a more efficient software engineering practice comprises a vast number of obstacles related to the intrinsic complexity of software systems and their surrounding contexts. Consequently, software systems tend to fail in meeting the real needs they were developed to address,consuming more resources, thus having a higher cost, and ta
Publicado em: 2008
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22. FILTRAGEM COLABORATIVA APLICADA A PUBLICIDADE DIRECIONADA / COLLABORATIVE FILTERING APPLIED TO TARGETED ADVERTISING
The emergence of the World Wide Web represented a new advertising opportunity available to any company: The possibility of global exposure to a large audience at a very small cost. As a result, a whole new industry has emerged by offering services related to search advertising, in which an advertiser pays for a prominent position in lists of ads. In order to
Publicado em: 2008
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23. Contributions to projection pursuit learning / Contribuições para o aprendizado por busca de projeção
The production of parsimonious models is a common demand on a wide variety of engineering problems, as in the design of embedded systems. Constructive algorithms for supervised learning have shown to be effective methodologies for the synthesis of parsimonious artificial neural networks, with high levels of accuracy and generalization capability, though requ
Publicado em: 2008
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24. Control system design for a gas turbine engine using evolutionary computing for multidisciplinary optimization
Multidisciplinary optimization (MDO) is concerned with complex systems exhibiting challenges in terms of organization and scale. Thus, it is well suited to be applied to complex multivariable control design. Collaborative optimization is one approach for dealing with complex multidisciplinary optimization problems. Three MDO architectures, including collabor
Sba: Controle & Automação Sociedade Brasileira de Automatica. Publicado em: 2007-12