621 search results - page 51 / 125 » Efficient algorithms for minimizing tree pattern queries |
PAKDD
2007
ACM
14 years 2 months ago
2007
ACM
In this paper, we investigate and utilize the characteristic of the group movement of objects to achieve energy conservation in the inherently resource-constrained wireless object ...
TCS
2008
13 years 8 months ago
2008
Multicast and broadcast are efficient ways to deliver messages to a group of recipients in a network. Due to the growing security concerns in various applications, messages are oft...
MASS
2010
13 years 2 months ago
2010
Abstract--Recent years have witnessed the emergence of numerous new Internet services for mobile users. Supporting mobile applications via public WiFi networks has received signifi...
CIKM
2007
Springer
13 years 12 months ago
2007
Springer
We investigate the problem of how to evaluate, fast and efficiently, classes of optimal route queries on a massive graph in a unified framework. To evaluate a route query effectiv...
SODA
2001
ACM
13 years 9 months ago
2001
ACM
Point location is the problem of preprocessing a planar polygonal subdivision S into a data structure in order to determine efficiently the cell of the subdivision that contains a...