659 search results - page 93 / 132 » Summarisation for Mobile Databases |
TMC
2008
13 years 10 months ago
2008
This paper introduces a cooperation-based database caching system for Mobile Ad Hoc Networks (MANETs). The heart of the system is the nodes that cache submitted queries. The querie...
ICDE
2004
IEEE
15 years 10 days ago
2004
IEEE
Several spatio-temporal applications require the retrieval of summarized information about moving objects that lie in a query region during a query interval (e.g., the number of m...
ICDE
2000
IEEE
15 years 10 days ago
2000
IEEE
In this paper, we study power conservation techniques for multi-attribute queries on wireless data broadcast channels. Indexing data on broadcast channels can improve client filte...
VLDB
2007
ACM
14 years 11 months ago
2007
ACM
A range of mobile services rely on knowing the current positions of populations of so-called moving objects. In the ideal setting, the positions of all objects are known always an...
SIGMOD
2003
ACM
14 years 11 months ago
2003
ACM
In this paper we propose an approach that enables mobile clients to determine the validity of previous queries based on their current locations. In order to make this possible, th...