Indexing Techniques
Mostrando 13-24 de 25 artigos, teses e dissertações.
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13. Análise de conteúdo de vídeo por meio de aprendizado ativo
Advances in compression techniques, decreasing cost of storage, and high-speed transmission have facilitated the way videos are created, stored and distributed. As a consequence, videos are now being used in many applications areas. The increase in the amount of video data deployed and used in today s applications reveals not only the importance as multimedi
Publicado em: 2007
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14. Sumarização de vídeos de futebol com baixo custo computacional utilizando ritmo visual : descritores de cor e movimento de câmara
The growth of multimedia contents production has created the necessity of new techniques for efficient storage and retrieval of these contents. The area of Content Based Image Retrieval is a research field whose goal is to develop Computer Vision based methods for indexing and retrieval of images and videos. Visual features such as color, shape, texture and
Publicado em: 2006
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15. Geração automática de metadados: uma contribuição para a Web semântica. / Automatic metadata generation: a contribution to the semantic Web.
This Thesis offers a contribution to the Semantic Web area, in the scope of the representation and indexing of documents, defining an Automatic metadata generation model based on context, starting from textual documents not structured in the Portuguese language. A wide theoretical set of subjects related to the creation of semantic digital environments is al
Publicado em: 2006
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16. Metadados para recuperação da informação em ambiente virtual
This research analyses metadata use in Brazil and abroad, based on cataloging, classification and indexing theory and techniques, focused on information retrieval system and its evolution, from manual, automated systems till internet/web. In the virtual environment, the information retrieval, its evaluation criteria and tools like classification schemes, sub
Publicado em: 2004
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17. A pratical and eficient approach of searches for similarity to support diagnose by images. / Uma abordagem prática e eficiente de consultas por similaridade para suporte a diagnóstico por imagens.
This works presents the main characteristics of a diagnosis support system based on image similarity search for medical applications. This system was developed to be used in the Clinical Hospital of Ribeirao Preto of the University of Sao Paulo. The content-based image retrieval (CBIR) researching area has evolved greatly in the last years. Thus, a CBIR syst
Publicado em: 2002
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18. Analise de desempenho de metodos de acesso espaciais baseada em um banco de dados real
This dissertation presents a comparative performance analysis of spatial access methods based on a real-life database. In spite of the large amount of research dealing with the performance comparison of spatial access methods, very little has been done when it comes to considering the properties of specific groups of applications. In part, this is due to the
Publicado em: 1998
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19. A Course in Information Techniques for Dental Students
A course plan is presented for introducing literature searching and critical skills to dental students. Topics include the “life cycle of information,” reference sources available, search procedure, abstracting and indexing, and personal information systems. Teaching is structured around planned seminars and student projects. The course design is compati
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20. MEDTUTOR: a microcomputer-based training program for MEDLINE.
MEDTUTOR is an interactive, microcomputer-based training package designed to teach medical and health professionals, as well as librarians and information specialists, how to use MEDLINE effectively. The objective of MEDTUTOR is to provide a comprehensive package for teaching the various commands and search techniques required for utilizing the MEDLINE datab
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21. The CRISP system: an untapped resource for biomedical research project information.
CRISP (Computer Retrieval of Information on Scientific Projects) is a large database maintained and operated by the National Institutes of Health (NIH). It contains comprehensive scientific and selected administrative data on research carried out by the U.S. Public Health Service (PHS) or supported by PHS grants and contracts. Developed originally to meet th
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22. KWIC... Is It Quick?
In recent months several widely circulated publications have exploited the concept of key-word-in-context (KWIC) indexing. Indexes prepared through KWIC techniques are based entirely on the permuted titles of material to be analyzed and are produced at high speed with the aid of electronic computers. KWIC indexes appear to have been received with approval by
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23. ProteinDBS: a real-time retrieval system for protein structure comparison
We have developed a web server (ProteinDBS) for the life science community to search for similar protein tertiary structures in real time. This system applies computer visualization techniques to extract the predominant visual patterns encoded in two-dimensional distance matrices generated from the three-dimensional coordinates of protein chains. When meanin
Oxford University Press.
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24. From paragraph to graph: Latent semantic analysis for information visualization
Most techniques for relating textual information rely on intellectually created links such as author-chosen keywords and titles, authority indexing terms, or bibliographic citations. Similarity of the semantic content of whole documents, rather than just titles, abstracts, or overlap of keywords, offers an attractive alternative. Latent semantic analysis pro
National Academy of Sciences.