Dbms
Mostrando 1-12 de 41 artigos, teses e dissertações.
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1. Integración de los algoritmos de minería de datos 1R, PRISM e ID3 a PostgreSQL
In this research, data mining and decision tree techniques were analyzed as well as the induction of rules to integrate their many algorithms into the database managing system (DBMS), PostgreSQL, due to the defficiencies of the free use tools avaialable. A mechanism to optimize the performance of the implemented algorithms was proposed with the purpose of ta
JISTEM J.Inf.Syst. Technol. Manag.. Publicado em: 2013-08
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2. Optimizing similarity queries in metric spaces meeting user\ s expectation / Otimização de operações de busca por similaridade em espaços métricos
The complexity of data stored in large databases has increased at very fast paces. Hence, operations more elaborated than traditional queries are essential in order to extract all required information from the database. Therefore, the interest of the database community in similarity search has increased significantly. Two of the well-known types of similarit
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/10/2012
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3. AUTOMATIC CREATION OF MATERIALIZED VIEWS IN RELATIONAL DBMS / CRIAÇÃO AUTOMÁTICA DE VISÕES MATERIALIZADAS EM SGBDS RELACIONAIS
As database applications become more complex, tuning database systems in order to improve query response times also become harder. One could consider materialized views, a relational database object that stores data resulting from specific queries, to obtain better performances. This dissertation proposes the automatic creation of materialized views. A non-i
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/04/2011
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4. Design da informação : requisitos de projeto para um sistema de gerenciamento no processo projetual do produto edificação / Information design: design requirements for a management system in the design process building product
A evolução das ferramentas computacionais, aliada à tecnologia da informação (TI) e ao ambiente web possibilitam a realização de projetos colaborativos, com maior integração de procedimentos, visando à comunicação, à coordenação e à cooperação da equipe multidisciplinar. O estudo de caso, realizado para o projeto de produto edificação, fo
Publicado em: 2010
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5. Information Management System: neurological disorders in non-cardiac chronics chagasic. / Sistema de gerenciamento da informação: alterações neurológicas em chagásicos crônicos não-cardíacos
This is the development of a computer information management system to support scientific studies about the nervous system of non-cardiac chronic chagasic patients. The goal is to develop the required system, by assumption of the convenience in the analysis of research results. The method used to develop this computer system, dedicated to information managem
Publicado em: 2010
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6. AutonomousDB: uma ferramenta para propagação autônoma de atualizações de esquemas de dados
One of the biggest challenge of building and maintaining applications with long life cycles is dealing with the inevitable changes in requirements that occur over time. Many of these applications depend on DBMS that most often suffer direct consequences in their databases schemas due to changes in the reality that they model. This changes must be controlled
Publicado em: 2009
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7. AutonomousDB: uma ferramenta para propagaÃÃo autÃnoma de atualizaÃÃes de esquemas de dados
One of the biggest challenge of building and maintaining applications with long life cycles is dealing with the inevitable changes in requirements that occur over time. Many of these applications depend on DBMS that most often suffer direct consequences in their databases schemas due to changes in the reality that they model. This changes must be controlled
Publicado em: 2009
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8. 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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9. ViXQueL: uma ferramenta web para acesso a banco de dados XML nativo
XML tornou-se o padrÃo de fato para troca de informaÃÃes entre diversas fontes de dados e aplicaÃÃes. Assim, sistemas de gerenciamento de bancos de dados XML nativos (SGBD XML nativos) tÃm se tornado peÃa fundamental na infra-estrutura de empresas que lidam com tal diversidade de fontes de dados e aplicaÃÃes. Gestores do mundo corporativo estÃo sem
Publicado em: 2009
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10. Comparação do desempenho dos índices r-tree, grades fixas, e curvas de Hilbert para consultas espaciais em bancos de dados geográficos / Comparison of the performance of R-tree grids files and Hilbert space filling curves performance for spatial queries on geographical databases
The development of spatial databases has been influenced by the research on spatial indexes. There has been a considerable amount of research on multidimensional indexes such as R-trees and its variants. The performance improvements when using spatial indexes for spatial operations led database developers to include R-tree support on their products. Despite
Publicado em: 2008
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11. Ontositter: sistema de soluÃÃo de problemas de SAGBD baseado em ontologia
Currently the Database Management System (DBMS) possess great capacity to store since the data gotten for the systems do business until the information synthecized for the systems of decision taking. In this context, as much the search for the information how much the routines of maintenance of this environment require a bigger effort on the part of the data
Publicado em: 2008
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12. Biota-Rio: Um banco de dados para a biodiversidade do Estado do Rio de Janeiro / BIOTA-RIO: A Database of Biodiversity in the State of Rio de Janeiro
The use of information technology in biodiversity related databases is increasing due to the open access to a large sum of data. Access to this information may be regarded as crucial to different areas of knowledge. The present work aims at the development of a open access computational system on biodiversity of the State of Rio de Janeiro. The Biota-R
Publicado em: 2008