621 search results - page 36 / 125 » Efficient algorithms for minimizing tree pattern queries |
ESA
2000
Springer
13 years 11 months ago
2000
Springer
The p-center problem is to locate p facilities on a network so as to minimize the largest distance from a demand point to its nearest facility. The p-median problem is to locate p ...
GIS
2009
ACM
14 years 9 months ago
2009
ACM
With the recent advancements and wide usage of location detection devices, large quantities of data are collected by GPS and cellular technologies in the form of trajectories. Whi...
SIGMOD
2007
ACM
14 years 8 months ago
2007
ACM
Complex queries often contain common or similar subexpressions, either within a single query or among multiple queries submitted as a batch. If so, query execution time can be imp...
DAWAK
2009
Springer
13 years 12 months ago
2009
Springer
Skyline queries have gained much attention as alternative query semantics with pros (e.g.low query formulation overhead) and cons (e.g.large control over result size). To overcome ...
AHSWN
2008
13 years 8 months ago
2008
In this paper, we present a new efficient strategy for constructing a wireless tree network containing n nodes of diameter while satisfying the QoS requirements such as bandwidth...