Systems For Information Retrieval
Mostrando 25-36 de 95 artigos, teses e dissertações.
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25. Treatment of time and dynamics in dta represented in metric spaces / Tratamento de tempo e dinamicidade em dados representados em espaços métricos
Nowadays, the Database Management Systems (DBMS) must be able to manage complex data, such as multimedia data, genetic sequences, temporal series, besides the traditional data. For queries on large collections of complex data, the similarity among elements is the most relevant concept, and it can be adequately expressed when data are represented in metric sp
Publicado em: 2009
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26. Um framework para a consulta a repositórios de vídeo digitais
The Information Retrieval Systems (IR) were constructed for easier access to information in a repository of data, offering resources for organizing, indexing and retrieval of data. These repository can contain any digital information such as documents, files, music or videos. In a repository of videos, the IR systems have difficult to index the information b
Publicado em: 2008
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27. Sistemas baseados em mapas auto-organizÃveis para organizaÃÃo automÃtica de documentos texto
This work proposes and evaluates hybrid systems for automatic text document organization based on Self-Organizing Maps (SOM). The aim is to design a system that combines SOM with other clustering algorithms, in order to generate document maps for large text document collections of good quality at a low computational cost. The posprocessing of a neural networ
Publicado em: 2008
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28. A knowledge based process model to support alternative conflict resolution. / Um modelo de processo baseado em conhecimento para apoiar a solução extrajudicial de conflitos.
This research presents the definition of a game model, adapted to represent the alternative dispute resolution processes, according to which an abstract model is proposed, splitting the negotiation in steps. By the description of each step, the objectives, and necessary tasks to achieve them, are identified. Based on the researches presented, for each step,
Publicado em: 2008
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29. Performance evaluation of content-based image retrieval on networks / Avaliação do desempenho de recuperação de imagens médicas baseada em conteúdo em redes de computadores
The field of information retrieval based on visual contents, has increased in importance due to its great deal of available material, including digital images and videos, which has been shared and disseminated mainly via internet. Thus, new patterns of consumption, handling, and exploration of digital materials have been developed using proper organization a
Publicado em: 2008
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30. 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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31. Novas arquiteturas para detecção de plágio baseadas em redes P2P
Nowadays the Internet has become a reference on information retrieval, thanks to its large amount and easiness to access it. But this can be misused, as one can simply access an information and take it as his own authorship. This constitutes an act of plagiarism. It has become increasingly common for people to do this, and tools to prevent this are in need.
Publicado em: 2008
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32. A utilização de mapas de tópicos na compatibilização de conteúdos hipertextuais semanticamente estruturados
By taking into account characteristics of hypertext systems and problems of disorientation and cognitive overload common to these systems, this project has as its objective an analysis of hypertext documents which have undergone processes for construction of a conceptual framework, making use of faceted structures to represent content and improved informatio
Publicado em: 2008
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33. Proposição de atributos e implementação de um módulo de banco de dados para prontuário eletrônico de pacientes vítimas de queimaduras
Increased morbidity and mortality and the lack of standardized procedures for collecting data on healthcare provided to burns victims require more enhanced studies to be performed. The aim of this thesis was to propose attributes for and the implementation of an electronic medical records module for recording information and analysing clinical, surgical and
Publicado em: 2008
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34. Busca e recuperaÃÃo de componentes de software utilizando agrupamento de componentes
The development of software with reuse is an approach that can be used to achieve two main benefits: (1) increase in productivity of software projects and (2) improvements in the final quality of the products. The software reuse approach can be instantiated through the strategy of development based in software components. According to this strategy, large so
Publicado em: 2008
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35. Data clustering by optimum-path transform / Agrupamento de dados por florestas de caminhos otimos
This thesis proposes a novel approach for data clustering based on optimum-path forest. The samples are taken as nodes of a graph, whose arcs are defined by an adjacency relation. The nodes are weighted by their probability density values (pdf) and a connectivity function is maximized, such that each maximum of the pdf becomes root of an optimum-path tree (c
Publicado em: 2008
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36. Linguistically motivated filter induction in information retrieval / Indução de filtros lingüisticamente motivados na recuperação de informação
Although Information Retrieval and Filtering tasks have always used basic Natural Language Processing (NLP) techniques for supporting document structuring, there is still space for more sophisticated NLP techniques which justify their cost when compared to the traditional approaches. This research aims to investigate some evidences that justify the hypothesi
Publicado em: 2007