Spatial Join
Mostrando 1-6 de 6 artigos, teses e dissertações.
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1. The impact of spatial data redundancy on SOLAP query performance
Geographic Data Warehouses (GDW) are one of the main technologies used in decision-making processes and spatial analysis, and the literature proposes several conceptual and logical data models for GDW. However, little effort has been focused on studying how spatial data redundancy affects SOLAP (Spatial On-Line Analytical Processing) query performance over G
Journal of the Brazilian Computer Society. Publicado em: 2009-06
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2. A importÃncia da dimensÃo do mercado de trabalho para os diferenciais de participaÃÃo e salÃrios entre gÃneros : uma anÃlise empÃrica para os centros urbanos brasileiros
Recent studies have brought evidence suggesting that the impacts of cities on the participation and wages of individuals in the labor market differ between genders. The hypothesis claims that the urban size would stimulate women s participation in the labor market and reduce the losses caused by interruptions in her career and the lower spatial mobility. Fro
Publicado em: 2009
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3. Análise e desenvolvimento de um novo algoritmo de junção espacial para SGBD geográficos / Analysis and design of a new algorithm to perform spatial join in geographic DBMS
Um Sistema de Informação Geográfica armazena e mantém dados geográficos, combinando-os, para obter novas representações do espaço geográfico. A junção espacial combina duas relações de geometrias geo-referenciadas de acordo com algum predicado espacial, como intersecção e distância entre objetos. Trata-se de uma operação essencial, pois é
Publicado em: 2007
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4. Fatores que afetam o desempenho de metodos de junções espaciais : um estudo baseado em dados reais
Synchronized tree traversal join methods for spatial access methods were analysed. The factors considered included bufferpool size, page size, intermediate join indexes ordering criteria, bufferpool page replacement policies, among others. This analysis was based on real data taken from a crs application for telecommunications, indexed on a R*-tree. Results
Publicado em: 2000
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5. Spatial Distributions of Genotypes under Isolation by Distance
The spatial distributions of single-locus diploid genotypes, produced within populations of sexually reproducing individuals under isolation by distance, are measured and characterized in detail by quantifying the join-counts for simulated model populations. The models more realistically reflect spatially explicit distributions of genotypes in populations, b
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6. Anticodon loop size and sequence requirements for recognition of formylmethionine tRNA by methionyl-tRNA synthetase.
Previous work from our laboratory identified several specific sites in Escherichia coli tRNAfMet that are essential for recognition of this tRNA by E. coli methionyl-tRNA synthetase (EC 6.1.1.10). Particularly strong evidence indicated a role for the nucleotide base at the wobble position of the anticodon in the discrimination process. To further investigate