983 search results - page 9 / 197 » Continuous Queries in Oracle |
FOCS
1993
IEEE
15 years 1 months ago
1993
IEEE
This paper investigates the computational complexity of approximating several NPoptimization problems using the number of queries to an NP oracle as a complexity measure. The resu...
SIGMOD
2002
ACM
15 years 9 months ago
2002
ACM
Spatial indexing has been one of the active focus areas in recent database research. Several variants of Quadtree and R-tree indexes have been proposed in database literature. In ...
CTRSA
2004
Springer
15 years 3 months ago
2004
Springer
Abstract. In [8] Vaudenay presented an attack on block cipher CBCmode encryption when a particular padding method is used. In this paper, we employ a similar approach to analyse th...
W2GIS
2007
Springer
15 years 3 months ago
2007
Springer
In order to provide a streaming service of 3-D spatial objects to the mobile clients on a street, we propose a new query type, called continuous perspective query. The perspective ...
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ICDE
2009
IEEE
15 years 11 months ago
2009
IEEE
The popularity of location-based services and the need to do real-time processing on them has led to an interest in performing queries on transportation networks, such as finding s...