503 search results - page 51 / 101 » Applying Multiple Query Optimization in Mobile Databases |
125
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EDBT
2004
ACM
16 years 2 months ago
2004
ACM
The join operation, which combines tuples from multiple relations, is the most fundamental and, typically, the most expensive operation in database queries. The standard approach t...
141
Voted
AMR
2007
Springer
15 years 8 months ago
2007
Springer
Distance measures, along with shape features, are the most critical components in a shape-based 3D model retrieval system. Given a shape feature, an optimal distance measure will v...
107
Voted
ERSHOV
2006
Springer
15 years 6 months ago
2006
Springer
In this work, we present a semantic query optimization technique to improve the efficiency of the evaluation of a subset of SQL:1999 recursive queries. Using datalog notation, we c...
113
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GIS
2007
ACM
15 years 6 months ago
2007
ACM
Spatial join is an important yet costly operation in spatial databases. In order to speed up the execution of a spatial join, the input tables are often indexed based on their spa...
141
Voted
SAC
1997
ACM
15 years 6 months ago
1997
ACM
Infomaster is an information integration system. It provides integrated access to distributed, heterogeneous information sources, thus giving its users the illusion of a centraliz...