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» A Method for Secure Query Processing in Mobile Databases
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SSD
1999
Springer
97views Database» more  SSD 1999»
15 years 1 months ago
A Performance Evaluation of Spatial Join Processing Strategies
We provide an evaluation of query execution plans (QEP) in the case of queries with one or two spatial joins. The QEPs assume R -tree indexed relations and use a common set of spat...
Apostolos Papadopoulos, Philippe Rigaux, Michel Sc...
SSDBM
2010
IEEE
127views Database» more  SSDBM 2010»
15 years 2 months ago
Optimizing All-Nearest-Neighbor Queries with Trigonometric Pruning
Many applications require to determine the k-nearest neighbors for multiple query points simultaneously. This task is known as all-(k)-nearest-neighbor (AkNN) query. In this paper,...
Tobias Emrich, Franz Graf, Hans-Peter Kriegel, Mat...
VLDB
1990
ACM
128views Database» more  VLDB 1990»
15 years 1 months ago
Advanced Query Processing in Object Bases Using Access Support Relations
Even though the large body of knowledge of relational query optimization techniques can be utilized as a starting point for object-oriented query optimization the full exploitatio...
Alfons Kemper, Guido Moerkotte
WISE
2002
Springer
15 years 2 months ago
Database Support for Spatial Generalisation for WWW and Mobile Applications
The need of using spatial vector data for web-based and mobile applications has been increasing rapidly. Vector spatial data is difficult to generalise (that is, to derive a suita...
Xiaofang Zhou, Sham Prasher, Masaru Kitsuregawa
173
Voted
VLDB
2002
ACM
139views Database» more  VLDB 2002»
15 years 9 months ago
TIMBER: A native XML database
Abstract This paper describes the overall design and architecture of the Timber XML database system currently being implemented at the University of Michigan. The system is based u...
H. V. Jagadish, Shurug Al-Khalifa, Adriane Chapman...